diff --git a/dist/index.html b/dist/index.html
index 8a25d74..f94645b 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -138,6 +138,12 @@ <h4><strong>自定义语言</strong></h4>
 					<input readonly class="form-control" type="text" id="date-group3-1" placeholder="lang">
 				</div>
 			</div>
+			<h5 class="col-xs-12">custom month names (english)</h5>
+			<div class="form-group clearfix">
+				<div class="col-xs-6">
+					<input readonly class="form-control" type="text" id="date-group3-2" placeholder="custom month names">
+				</div>
+			</div>
 		</div>
 
 		<h4><strong>设置默认日期</strong></h4>
@@ -327,6 +333,36 @@ <h4><strong>其他示例</strong></h4>
 				lang: lang
 			})
 
+			// Custom month names
+			new Rolldate({
+				el: '#date-group3-2',
+				format: 'MM-DD-YYYY',
+				beginYear: 2000,
+				endYear: 2100,
+				lang: {
+					title: 'Select a date',
+					cancel: 'Cancel',
+					confirm: 'Confirm',
+					day: '',
+					month: '',
+					year: '',
+				},
+				monthNames: {
+					month1: 'Jan',
+					month2: 'Feb',
+					month3: 'Mar',
+					month4: 'Apr',
+					month5: 'May',
+					month6: 'Jun',
+					month7: 'Jul',
+					month8: 'Aug',
+					month9: 'Sep',
+					month10: 'Oct',
+					month11: 'Nov',
+					month12: 'Dec',
+				}
+			})
+
 			// 设置默认日期 内部使用document.getElementById('date').bindDate = new Date('2019/05/13');
 			new Rolldate({
 				el: '#date-group4-1',
diff --git a/dist/rolldate.cjs.js b/dist/rolldate.cjs.js
index 88c28e5..8bdd251 100644
--- a/dist/rolldate.cjs.js
+++ b/dist/rolldate.cjs.js
@@ -1,18 +1,19 @@
-/**
+/** 
  * Rolldate 3.1.3
- * Copyright 2018-2020
+ * Copyright 2018-2021
  * weijhfly https://github.com/weijhfly/rolldate
  * Licensed under MIT
  * Released on: aug 4, 2018
  */
-
 'use strict';
 
 function styleInject(css, ref) {
-  if ( ref === void 0 ) ref = {};
+  if (ref === void 0) ref = {};
   var insertAt = ref.insertAt;
 
-  if (!css || typeof document === 'undefined') { return; }
+  if (!css || typeof document === 'undefined') {
+    return;
+  }
 
   var head = document.head || document.getElementsByTagName('head')[0];
   var style = document.createElement('style');
@@ -35,7 +36,7 @@ function styleInject(css, ref) {
   }
 }
 
-var css = ".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;-webkit-transition:all .3s ease-in-out;-o-transition:all .3s ease-in-out;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}.rolldate-container .rolldate-wrapper>div{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;height:173px;line-height:36px;overflow:hidden;-webkit-flex-basis:-8e;-ms-flex-preferred-size:-8e;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:-o-linear-gradient(bottom,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));background:-webkit-gradient(linear, left bottom, left top, from(hsla(0, 0%, 100%, 0.4)), to(hsla(0, 0%, 100%, 0.8)));background:-o-linear-gradient(bottom, hsla(0, 0%, 100%, 0.4), hsla(0, 0%, 100%, 0.8));background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}";
+var css = ".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:flex}.rolldate-container .rolldate-wrapper>div{flex:1;height:173px;line-height:36px;overflow:hidden;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}";
 styleInject(css);
 
 var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
@@ -128,7 +129,21 @@ Rolldate.prototype = {
         cancel: null,
         minStep: 1,
         trigger: 'tap',
-        lang: { title: '选择日期', cancel: '取消', confirm: '确认', year: '年', month: '月', day: '日', hour: '时', min: '分', sec: '秒' }
+        lang: { title: '选择日期', cancel: '取消', confirm: '确认', year: '年', month: '月', day: '日', hour: '时', min: '分', sec: '秒' },
+        monthNames: {
+          month1: null,
+          month2: null,
+          month3: null,
+          month4: null,
+          month5: null,
+          month6: null,
+          month7: null,
+          month8: null,
+          month9: null,
+          month10: null,
+          month11: null,
+          month12: null
+        }
       }
     };
   },
@@ -157,7 +172,8 @@ Rolldate.prototype = {
         ul = '',
         date = config.el ? $(config.el).bindDate || new Date() : _this.bindDate || new Date(),
         itemClass = '',
-        lang = config.lang;
+        lang = config.lang,
+        monthNames = config.monthNames;
 
     for (var i = 0; i < len; i++) {
       var f = FormatArr[i],
@@ -169,14 +185,16 @@ Rolldate.prototype = {
         for (var j = config.beginYear; j <= config.endYear; j++) {
           itemClass = j == date.getFullYear() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + j + lang.year + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + j + '">' + j + lang.year + '</li>';
           domMndex++;
         }
       } else if (f == 'MM') {
         for (var k = 1; k <= 12; k++) {
           itemClass = k == date.getMonth() + 1 ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (k < 10 ? '0' + k : k) + lang.month + '</li>';
+          var month = monthNames['month' + k] === null ? k < 10 ? '0' + k : k : monthNames['month' + k];
+
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (k < 10 ? '0' + k : k) + '">' + month + lang.month + '</li>';
           domMndex++;
         }
       } else if (f == 'DD') {
@@ -184,28 +202,28 @@ Rolldate.prototype = {
         for (var l = 1; l <= day; l++) {
           itemClass = l == date.getDate() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (l < 10 ? '0' + l : l) + lang.day + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (l < 10 ? '0' + l : l) + '">' + (l < 10 ? '0' + l : l) + lang.day + '</li>';
           domMndex++;
         }
       } else if (f == 'hh') {
         for (var m = 0; m <= 23; m++) {
           itemClass = m == date.getHours() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (m < 10 ? '0' + m : m) + lang.hour + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (m < 10 ? '0' + m : m) + '">' + (m < 10 ? '0' + m : m) + lang.hour + '</li>';
           domMndex++;
         }
       } else if (f == 'mm') {
         for (var n = 0; n <= 59; n += config.minStep) {
           itemClass = n == date.getMinutes() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (n < 10 ? '0' + n : n) + lang.min + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (n < 10 ? '0' + n : n) + '">' + (n < 10 ? '0' + n : n) + lang.min + '</li>';
           domMndex++;
         }
       } else if (f == 'ss') {
         for (var o = 0; o <= 59; o++) {
           itemClass = o == date.getSeconds() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (o < 10 ? '0' + o : o) + lang.sec + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (o < 10 ? '0' + o : o) + '">' + (o < 10 ? '0' + o : o) + lang.sec + '</li>';
           domMndex++;
         }
       }
@@ -436,7 +454,7 @@ Rolldate.prototype = {
     }, 300);
   },
   getSelected: function getSelected(scroll) {
-    return $('#' + scroll.wrapper.id + ' li', 1)[scroll.getSelectedIndex()].innerText.replace(/\D/g, '');
+    return $('#' + scroll.wrapper.id + ' li', 1)[scroll.getSelectedIndex()].getAttribute('data-value');
   }
 };
 Rolldate.version = version;
diff --git a/dist/rolldate.es.js b/dist/rolldate.es.js
index 3e1fb94..22faffe 100644
--- a/dist/rolldate.es.js
+++ b/dist/rolldate.es.js
@@ -1,16 +1,17 @@
-/**
+/** 
  * Rolldate 3.1.3
- * Copyright 2018-2020
+ * Copyright 2018-2021
  * weijhfly https://github.com/weijhfly/rolldate
  * Licensed under MIT
  * Released on: aug 4, 2018
  */
-
 function styleInject(css, ref) {
-  if ( ref === void 0 ) ref = {};
+  if (ref === void 0) ref = {};
   var insertAt = ref.insertAt;
 
-  if (!css || typeof document === 'undefined') { return; }
+  if (!css || typeof document === 'undefined') {
+    return;
+  }
 
   var head = document.head || document.getElementsByTagName('head')[0];
   var style = document.createElement('style');
@@ -33,7 +34,7 @@ function styleInject(css, ref) {
   }
 }
 
-var css = ".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;-webkit-transition:all .3s ease-in-out;-o-transition:all .3s ease-in-out;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}.rolldate-container .rolldate-wrapper>div{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;height:173px;line-height:36px;overflow:hidden;-webkit-flex-basis:-8e;-ms-flex-preferred-size:-8e;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:-o-linear-gradient(bottom,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));background:-webkit-gradient(linear, left bottom, left top, from(hsla(0, 0%, 100%, 0.4)), to(hsla(0, 0%, 100%, 0.8)));background:-o-linear-gradient(bottom, hsla(0, 0%, 100%, 0.4), hsla(0, 0%, 100%, 0.8));background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}";
+var css = ".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:flex}.rolldate-container .rolldate-wrapper>div{flex:1;height:173px;line-height:36px;overflow:hidden;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}";
 styleInject(css);
 
 var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
@@ -126,7 +127,21 @@ Rolldate.prototype = {
         cancel: null,
         minStep: 1,
         trigger: 'tap',
-        lang: { title: '选择日期', cancel: '取消', confirm: '确认', year: '年', month: '月', day: '日', hour: '时', min: '分', sec: '秒' }
+        lang: { title: '选择日期', cancel: '取消', confirm: '确认', year: '年', month: '月', day: '日', hour: '时', min: '分', sec: '秒' },
+        monthNames: {
+          month1: null,
+          month2: null,
+          month3: null,
+          month4: null,
+          month5: null,
+          month6: null,
+          month7: null,
+          month8: null,
+          month9: null,
+          month10: null,
+          month11: null,
+          month12: null
+        }
       }
     };
   },
@@ -155,7 +170,8 @@ Rolldate.prototype = {
         ul = '',
         date = config.el ? $(config.el).bindDate || new Date() : _this.bindDate || new Date(),
         itemClass = '',
-        lang = config.lang;
+        lang = config.lang,
+        monthNames = config.monthNames;
 
     for (var i = 0; i < len; i++) {
       var f = FormatArr[i],
@@ -167,14 +183,16 @@ Rolldate.prototype = {
         for (var j = config.beginYear; j <= config.endYear; j++) {
           itemClass = j == date.getFullYear() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + j + lang.year + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + j + '">' + j + lang.year + '</li>';
           domMndex++;
         }
       } else if (f == 'MM') {
         for (var k = 1; k <= 12; k++) {
           itemClass = k == date.getMonth() + 1 ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (k < 10 ? '0' + k : k) + lang.month + '</li>';
+          var month = monthNames['month' + k] === null ? k < 10 ? '0' + k : k : monthNames['month' + k];
+
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (k < 10 ? '0' + k : k) + '">' + month + lang.month + '</li>';
           domMndex++;
         }
       } else if (f == 'DD') {
@@ -182,28 +200,28 @@ Rolldate.prototype = {
         for (var l = 1; l <= day; l++) {
           itemClass = l == date.getDate() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (l < 10 ? '0' + l : l) + lang.day + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (l < 10 ? '0' + l : l) + '">' + (l < 10 ? '0' + l : l) + lang.day + '</li>';
           domMndex++;
         }
       } else if (f == 'hh') {
         for (var m = 0; m <= 23; m++) {
           itemClass = m == date.getHours() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (m < 10 ? '0' + m : m) + lang.hour + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (m < 10 ? '0' + m : m) + '">' + (m < 10 ? '0' + m : m) + lang.hour + '</li>';
           domMndex++;
         }
       } else if (f == 'mm') {
         for (var n = 0; n <= 59; n += config.minStep) {
           itemClass = n == date.getMinutes() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (n < 10 ? '0' + n : n) + lang.min + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (n < 10 ? '0' + n : n) + '">' + (n < 10 ? '0' + n : n) + lang.min + '</li>';
           domMndex++;
         }
       } else if (f == 'ss') {
         for (var o = 0; o <= 59; o++) {
           itemClass = o == date.getSeconds() ? 'active' : '';
 
-          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (o < 10 ? '0' + o : o) + lang.sec + '</li>';
+          ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (o < 10 ? '0' + o : o) + '">' + (o < 10 ? '0' + o : o) + lang.sec + '</li>';
           domMndex++;
         }
       }
@@ -434,7 +452,7 @@ Rolldate.prototype = {
     }, 300);
   },
   getSelected: function getSelected(scroll) {
-    return $('#' + scroll.wrapper.id + ' li', 1)[scroll.getSelectedIndex()].innerText.replace(/\D/g, '');
+    return $('#' + scroll.wrapper.id + ' li', 1)[scroll.getSelectedIndex()].getAttribute('data-value');
   }
 };
 Rolldate.version = version;
diff --git a/dist/rolldate.js b/dist/rolldate.js
index d8c2174..3da3bef 100644
--- a/dist/rolldate.js
+++ b/dist/rolldate.js
@@ -1,11 +1,10 @@
-/**
+/** 
  * Rolldate 3.1.3
- * Copyright 2018-2020
+ * Copyright 2018-2021
  * weijhfly https://github.com/weijhfly/rolldate
  * Licensed under MIT
  * Released on: aug 4, 2018
  */
-
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
   typeof define === 'function' && define.amd ? define(factory) :
@@ -13,10 +12,12 @@
 }(this, function () { 'use strict';
 
   function styleInject(css, ref) {
-    if ( ref === void 0 ) ref = {};
+    if (ref === void 0) ref = {};
     var insertAt = ref.insertAt;
 
-    if (!css || typeof document === 'undefined') { return; }
+    if (!css || typeof document === 'undefined') {
+      return;
+    }
 
     var head = document.head || document.getElementsByTagName('head')[0];
     var style = document.createElement('style');
@@ -39,7 +40,7 @@
     }
   }
 
-  var css = ".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;-webkit-transition:all .3s ease-in-out;-o-transition:all .3s ease-in-out;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}.rolldate-container .rolldate-wrapper>div{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;height:173px;line-height:36px;overflow:hidden;-webkit-flex-basis:-8e;-ms-flex-preferred-size:-8e;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:-o-linear-gradient(bottom,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));background:-webkit-gradient(linear, left bottom, left top, from(hsla(0, 0%, 100%, 0.4)), to(hsla(0, 0%, 100%, 0.8)));background:-o-linear-gradient(bottom, hsla(0, 0%, 100%, 0.4), hsla(0, 0%, 100%, 0.8));background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}";
+  var css = ".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:flex}.rolldate-container .rolldate-wrapper>div{flex:1;height:173px;line-height:36px;overflow:hidden;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}";
   styleInject(css);
 
   var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
@@ -132,7 +133,21 @@
           cancel: null,
           minStep: 1,
           trigger: 'tap',
-          lang: { title: '选择日期', cancel: '取消', confirm: '确认', year: '年', month: '月', day: '日', hour: '时', min: '分', sec: '秒' }
+          lang: { title: '选择日期', cancel: '取消', confirm: '确认', year: '年', month: '月', day: '日', hour: '时', min: '分', sec: '秒' },
+          monthNames: {
+            month1: null,
+            month2: null,
+            month3: null,
+            month4: null,
+            month5: null,
+            month6: null,
+            month7: null,
+            month8: null,
+            month9: null,
+            month10: null,
+            month11: null,
+            month12: null
+          }
         }
       };
     },
@@ -161,7 +176,8 @@
           ul = '',
           date = config.el ? $(config.el).bindDate || new Date() : _this.bindDate || new Date(),
           itemClass = '',
-          lang = config.lang;
+          lang = config.lang,
+          monthNames = config.monthNames;
 
       for (var i = 0; i < len; i++) {
         var f = FormatArr[i],
@@ -173,14 +189,16 @@
           for (var j = config.beginYear; j <= config.endYear; j++) {
             itemClass = j == date.getFullYear() ? 'active' : '';
 
-            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + j + lang.year + '</li>';
+            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + j + '">' + j + lang.year + '</li>';
             domMndex++;
           }
         } else if (f == 'MM') {
           for (var k = 1; k <= 12; k++) {
             itemClass = k == date.getMonth() + 1 ? 'active' : '';
 
-            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (k < 10 ? '0' + k : k) + lang.month + '</li>';
+            var month = monthNames['month' + k] === null ? k < 10 ? '0' + k : k : monthNames['month' + k];
+
+            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (k < 10 ? '0' + k : k) + '">' + month + lang.month + '</li>';
             domMndex++;
           }
         } else if (f == 'DD') {
@@ -188,28 +206,28 @@
           for (var l = 1; l <= day; l++) {
             itemClass = l == date.getDate() ? 'active' : '';
 
-            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (l < 10 ? '0' + l : l) + lang.day + '</li>';
+            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (l < 10 ? '0' + l : l) + '">' + (l < 10 ? '0' + l : l) + lang.day + '</li>';
             domMndex++;
           }
         } else if (f == 'hh') {
           for (var m = 0; m <= 23; m++) {
             itemClass = m == date.getHours() ? 'active' : '';
 
-            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (m < 10 ? '0' + m : m) + lang.hour + '</li>';
+            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (m < 10 ? '0' + m : m) + '">' + (m < 10 ? '0' + m : m) + lang.hour + '</li>';
             domMndex++;
           }
         } else if (f == 'mm') {
           for (var n = 0; n <= 59; n += config.minStep) {
             itemClass = n == date.getMinutes() ? 'active' : '';
 
-            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (n < 10 ? '0' + n : n) + lang.min + '</li>';
+            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (n < 10 ? '0' + n : n) + '">' + (n < 10 ? '0' + n : n) + lang.min + '</li>';
             domMndex++;
           }
         } else if (f == 'ss') {
           for (var o = 0; o <= 59; o++) {
             itemClass = o == date.getSeconds() ? 'active' : '';
 
-            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '">' + (o < 10 ? '0' + o : o) + lang.sec + '</li>';
+            ul += '<li class="wheel-item ' + itemClass + '" data-index="' + domMndex + '" data-value="' + (o < 10 ? '0' + o : o) + '">' + (o < 10 ? '0' + o : o) + lang.sec + '</li>';
             domMndex++;
           }
         }
@@ -440,7 +458,7 @@
       }, 300);
     },
     getSelected: function getSelected(scroll) {
-      return $('#' + scroll.wrapper.id + ' li', 1)[scroll.getSelectedIndex()].innerText.replace(/\D/g, '');
+      return $('#' + scroll.wrapper.id + ' li', 1)[scroll.getSelectedIndex()].getAttribute('data-value');
     }
   };
   Rolldate.version = version;
diff --git a/dist/rolldate.min.js b/dist/rolldate.min.js
index e4ab84a..44a9dc5 100644
--- a/dist/rolldate.min.js
+++ b/dist/rolldate.min.js
@@ -1,9 +1,8 @@
-/**
+/** 
  * Rolldate 3.1.3
- * Copyright 2018-2020
+ * Copyright 2018-2021
  * weijhfly https://github.com/weijhfly/rolldate
  * Licensed under MIT
  * Released on: aug 4, 2018
  */
-
-!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?module.exports=i():"function"==typeof define&&define.amd?define(i):(t=t||self).Rolldate=i()}(this,function(){"use strict";!function(t,i){void 0===i&&(i={});var e=i.insertAt;if(t&&"undefined"!=typeof document){var o=document.head||document.getElementsByTagName("head")[0],s=document.createElement("style");s.type="text/css","top"===e&&o.firstChild?o.insertBefore(s,o.firstChild):o.appendChild(s),s.styleSheet?s.styleSheet.cssText=t:s.appendChild(document.createTextNode(t))}}(".rolldate-container{font-size:20px;color:#333;text-align:center}.rolldate-container ul{margin:0;padding:0}.rolldate-container li{list-style-type:none}.rolldate-container header{position:relative;line-height:60px;font-size:18px;border-bottom:1px solid #e0e0e0}.rolldate-container .rolldate-mask{position:fixed;width:100%;height:100%;top:0;left:0;z-index:999;background-color:rgba(37,38,45,.4)}.rolldate-container .rolldate-panel{position:fixed;bottom:0;left:0;width:100%;height:273px;z-index:1000;background:#fff;-webkit-transition:all .3s ease-in-out;-o-transition:all .3s ease-in-out;transition:all .3s ease-in-out;-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}.rolldate-container .rolldate-btn{position:absolute;left:0;top:0;height:100%;padding:0 15px;color:#666;font-size:16px;cursor:pointer;-webkit-tap-highlight-color:transparent}.rolldate-container .rolldate-confirm{left:auto;right:0;color:#007bff}.rolldate-container .rolldate-content{position:relative;top:20px}.rolldate-container .rolldate-wrapper{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}.rolldate-container .rolldate-wrapper>div{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;height:173px;line-height:36px;overflow:hidden;-webkit-flex-basis:-8e;-ms-flex-preferred-size:-8e;flex-basis:-8e;width:1%}.rolldate-container .rolldate-wrapper ul{margin-top:68px}.rolldate-container .rolldate-wrapper li{height:36px}.rolldate-container .rolldate-dim{position:absolute;left:0;top:0;width:100%;height:68px;background:-o-linear-gradient(bottom,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));background:-webkit-gradient(linear, left bottom, left top, from(hsla(0, 0%, 100%, 0.4)), to(hsla(0, 0%, 100%, 0.8)));background:-o-linear-gradient(bottom, hsla(0, 0%, 100%, 0.4), hsla(0, 0%, 100%, 0.8));background:linear-gradient(0deg,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8));pointer-events:none;-webkit-transform:translateZ(0);transform:translateZ(0);z-index:10}.rolldate-container .mask-top{border-bottom:1px solid #ebebeb}.rolldate-container .mask-bottom{top:auto;bottom:1px;border-top:1px solid #ebebeb}.rolldate-container .fadeIn{-webkit-transform:translateZ(0);transform:translateZ(0)}.rolldate-container .fadeOut{-webkit-transform:translate3d(0,273px,0);transform:translate3d(0,273px,0)}@media screen and (max-width:414px){.rolldate-container{font-size:18px}}@media screen and (max-width:320px){.rolldate-container{font-size:15px}}");"undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self&&self;function S(t,i){return"string"!=typeof t&&t.nodeType?t:i?document.querySelectorAll(t):document.querySelector(t)}var t,Y=(function(t,i){t.exports=function(){function s(t,i){for(;i+1<t.length;i++)t[i]=t[i+1];t.pop()}var h=function(t,i){if(Array.isArray(t))return t;if(Symbol.iterator in Object(t))return function(t,i){var e=[],o=!0,s=!1,n=void 0;try{for(var r,a=t[Symbol.iterator]();!(o=(r=a.next()).done)&&(e.push(r.value),!i||e.length!==i);o=!0);}catch(t){s=!0,n=t}finally{try{!o&&a.return&&a.return()}finally{if(s)throw n}}return e}(t,i);throw new TypeError("Invalid attempt to destructure non-iterable instance")},e="undefined"!=typeof window,t=e&&navigator.userAgent.toLowerCase(),i=t&&/wechatdevtools/.test(t),o=t&&0<t.indexOf("android");function b(){return window.performance&&window.performance.now?window.performance.now()+window.performance.timing.navigationStart:+new Date}function l(t){for(var i=arguments.length,e=Array(1<i?i-1:0),o=1;o<i;o++)e[o-1]=arguments[o];for(var s=0;s<e.length;s++){var n=e[s];for(var r in n)t[r]=n[r]}return t}function c(t){return null==t}var n=e&&document.createElement("div").style,r=function(){if(!e)return!1;var t={webkit:"webkitTransform",Moz:"MozTransform",O:"OTransform",ms:"msTransform",standard:"transform"};for(var i in t)if(void 0!==n[t[i]])return i;return!1}();function a(t){return!1!==r&&("standard"===r?"transitionEnd"===t?"transitionend":t:r+t.charAt(0).toUpperCase()+t.substr(1))}function d(t,i,e,o){t.addEventListener(i,e,{passive:!1,capture:!!o})}function p(t,i,e,o){t.removeEventListener(i,e,{passive:!1,capture:!!o})}function u(t){for(var i=0,e=0;t;)i-=t.offsetLeft,e-=t.offsetTop,t=t.offsetParent;return{left:i,top:e}}r&&"standard"!==r&&r.toLowerCase();var m=a("transform"),f=a("transition"),v=e&&a("perspective")in n,g=e&&("ontouchstart"in window||i),w=!1!==m,y=e&&f in n,x={transform:m,transition:f,transitionTimingFunction:a("transitionTimingFunction"),transitionDuration:a("transitionDuration"),transitionDelay:a("transitionDelay"),transformOrigin:a("transformOrigin"),transitionEnd:a("transitionEnd")},T={touchstart:1,touchmove:1,touchend:1,mousedown:2,mousemove:2,mouseup:2};function S(t){if(t instanceof window.SVGElement){var i=t.getBoundingClientRect();return{top:i.top,left:i.left,width:i.width,height:i.height}}return{top:t.offsetTop,left:t.offsetLeft,width:t.offsetWidth,height:t.offsetHeight}}function Y(t,i){for(var e in i)if(i[e].test(t[e]))return!0;return!1}function D(t){var i=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"click",e=void 0;"mouseup"===t.type||"mousecancel"===t.type?e=t:"touchend"!==t.type&&"touchcancel"!==t.type||(e=t.changedTouches[0]);var o={};e&&(o.screenX=e.screenX||0,o.screenY=e.screenY||0,o.clientX=e.clientX||0,o.clientY=e.clientY||0);var s=void 0,n=!0,r=!0;if("undefined"!=typeof MouseEvent)try{s=new MouseEvent(i,l({bubbles:n,cancelable:r},o))}catch(t){a()}else a();function a(){(s=document.createEvent("Event")).initEvent(i,n,r),l(s,o)}s.forwardedTouchEvent=!0,s._constructed=!0,t.target.dispatchEvent(s)}var M={startX:0,startY:0,scrollX:!1,scrollY:!0,freeScroll:!1,directionLockThreshold:5,eventPassthrough:"",click:!1,tap:!1,bounce:!0,bounceTime:800,momentum:!0,momentumLimitTime:300,momentumLimitDistance:15,swipeTime:2500,swipeBounceTime:500,deceleration:.0015,flickLimitTime:200,flickLimitDistance:100,resizePolling:60,probeType:0,preventDefault:!0,preventDefaultException:{tagName:/^(INPUT|TEXTAREA|BUTTON|SELECT|AUDIO)$/},HWCompositing:!0,useTransition:!0,useTransform:!0,bindToWrapper:!1,disableMouse:g,disableTouch:!g,observeDOM:!0,autoBlur:!0,wheel:!1,snap:!1,scrollbar:!1,pullDownRefresh:!1,pullUpLoad:!1,mouseWheel:!1,stopPropagation:!1,zoom:!1,infinity:!1,dblclick:!1},X={swipe:{style:"cubic-bezier(0.23, 1, 0.32, 1)",fn:function(t){return 1+--t*t*t*t*t}},swipeBounce:{style:"cubic-bezier(0.25, 0.46, 0.45, 0.94)",fn:function(t){return t*(2-t)}},bounce:{style:"cubic-bezier(0.165, 0.84, 0.44, 1)",fn:function(t){return 1- --t*t*t*t}}};function _(t,i,e,o,s,n,r){var a=t-i,l=Math.abs(a)/e,h=r.deceleration,c=r.itemHeight,d=r.swipeBounceTime,p=r.wheel,u=r.swipeTime,m=p?4:15,f=t+l/h*(a<0?-1:1);return p&&c&&(f=Math.round(f/c)*c),f<o?(f=n?Math.max(o-n/4,o-n/m*l):o,u=d):s<f&&(f=n?Math.min(s+n/4,s+n/m*l):s,u=d),{destination:Math.round(f),duration:u}}function E(){}var k,L,O,P,H,I=e?window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||function(t){return window.setTimeout(t,(t.interval||100/60)/2)}:E,z=e?window.cancelAnimationFrame||window.webkitCancelAnimationFrame||window.mozCancelAnimationFrame||window.oCancelAnimationFrame||function(t){window.clearTimeout(t)}:E;function W(t){console.error("[BScroll warn]: "+t)}function C(t,i){this.wrapper="string"==typeof t?document.querySelector(t):t,this.wrapper||W("Can not resolve the wrapper DOM."),this.scroller=this.wrapper.children[0],this.scroller||W("The wrapper need at least one child element to be scroller."),this.scrollerStyle=this.scroller.style,this._init(i)}return(k=C).prototype._init=function(t){this._handleOptions(t),this._events={},this.x=0,this.y=0,this.directionX=0,this.directionY=0,this.setScale(1),this._addDOMEvents(),this._initExtFeatures(),this._watchTransition(),this.options.observeDOM&&this._initDOMObserver(),this.options.autoBlur&&this._handleAutoBlur(),this.refresh(),this.options.snap||this.scrollTo(this.options.startX,this.options.startY),this.enable()},k.prototype.setScale=function(t){this.lastScale=c(this.scale)?t:this.scale,this.scale=t},k.prototype._handleOptions=function(t){this.options=l({},M,t),this.translateZ=this.options.HWCompositing&&v?" translateZ(0)":"",this.options.useTransition=this.options.useTransition&&y,this.options.useTransform=this.options.useTransform&&w,this.options.preventDefault=!this.options.eventPassthrough&&this.options.preventDefault,this.options.scrollX="horizontal"!==this.options.eventPassthrough&&this.options.scrollX,this.options.scrollY="vertical"!==this.options.eventPassthrough&&this.options.scrollY,this.options.freeScroll=this.options.freeScroll&&!this.options.eventPassthrough,this.options.directionLockThreshold=this.options.eventPassthrough?0:this.options.directionLockThreshold,!0===this.options.tap&&(this.options.tap="tap")},k.prototype._addDOMEvents=function(){var t=d;this._handleDOMEvents(t)},k.prototype._removeDOMEvents=function(){var t=p;this._handleDOMEvents(t)},k.prototype._handleDOMEvents=function(t){var i=this.options.bindToWrapper?this.wrapper:window;t(window,"orientationchange",this),t(window,"resize",this),this.options.click&&t(this.wrapper,"click",this,!0),this.options.disableMouse||(t(this.wrapper,"mousedown",this),t(i,"mousemove",this),t(i,"mousecancel",this),t(i,"mouseup",this)),g&&!this.options.disableTouch&&(t(this.wrapper,"touchstart",this),t(i,"touchmove",this),t(i,"touchcancel",this),t(i,"touchend",this)),t(this.scroller,x.transitionEnd,this)},k.prototype._initExtFeatures=function(){this.options.snap&&this._initSnap(),this.options.scrollbar&&this._initScrollbar(),this.options.pullUpLoad&&this._initPullUp(),this.options.pullDownRefresh&&this._initPullDown(),this.options.wheel&&this._initWheel(),this.options.mouseWheel&&this._initMouseWheel(),this.options.zoom&&this._initZoom(),this.options.infinity&&this._initInfinite()},k.prototype._watchTransition=function(){if("function"==typeof Object.defineProperty){var s=this,n=!1,t=this.options.useTransition?"isInTransition":"isAnimating";Object.defineProperty(this,t,{get:function(){return n},set:function(t){n=t;for(var i=s.scroller.children.length?s.scroller.children:[s.scroller],e=n&&!s.pulling?"none":"auto",o=0;o<i.length;o++)i[o].style.pointerEvents=e}})}},k.prototype._handleAutoBlur=function(){this.on("scrollStart",function(){var t=document.activeElement;!t||"INPUT"!==t.tagName&&"TEXTAREA"!==t.tagName||t.blur()})},k.prototype._initDOMObserver=function(){var n=this;if("undefined"!=typeof MutationObserver){var r=void 0,t=new MutationObserver(function(t){if(!n._shouldNotRefresh()){for(var i=!1,e=!1,o=0;o<t.length;o++){var s=t[o];if("attributes"!==s.type){i=!0;break}if(s.target!==n.scroller){e=!0;break}}i?n.refresh():e&&(clearTimeout(r),r=setTimeout(function(){n._shouldNotRefresh()||n.refresh()},60))}});t.observe(this.scroller,{attributes:!0,childList:!0,subtree:!0}),this.on("destroy",function(){t.disconnect()})}else this._checkDOMUpdate()},k.prototype._shouldNotRefresh=function(){var t=this.x>this.minScrollX||this.x<this.maxScrollX||this.y>this.minScrollY||this.y<this.maxScrollY;return this.isInTransition||this.stopFromTransition||t},k.prototype._checkDOMUpdate=function(){var o=S(this.scroller),s=o.width,n=o.height;(function e(){var t=this;setTimeout(function(){(function(){if(!this.destroyed){var t=(o=S(this.scroller)).width,i=o.height;s===t&&n===i||this.refresh(),s=t,n=i,e.call(this)}}).call(t)},1e3)}).call(this)},k.prototype.handleEvent=function(t){switch(t.type){case"touchstart":case"mousedown":this._start(t),this.options.zoom&&t.touches&&1<t.touches.length&&this._zoomStart(t);break;case"touchmove":case"mousemove":this.options.zoom&&t.touches&&1<t.touches.length?this._zoom(t):this._move(t);break;case"touchend":case"mouseup":case"touchcancel":case"mousecancel":this.scaled?this._zoomEnd(t):this._end(t);break;case"orientationchange":case"resize":this._resize();break;case"transitionend":case"webkitTransitionEnd":case"oTransitionEnd":case"MSTransitionEnd":this._transitionEnd(t);break;case"click":this.enabled&&!t._constructed&&(Y(t.target,this.options.preventDefaultException)||(t.preventDefault(),t.stopPropagation()));break;case"wheel":case"DOMMouseScroll":case"mousewheel":this._onMouseWheel(t)}},k.prototype.refresh=function(){var t="static"===window.getComputedStyle(this.wrapper,null).position,i=S(this.wrapper);this.wrapperWidth=i.width,this.wrapperHeight=i.height;var e=S(this.scroller);this.scrollerWidth=Math.round(e.width*this.scale),this.scrollerHeight=Math.round(e.height*this.scale),this.relativeX=e.left,this.relativeY=e.top,t&&(this.relativeX-=i.left,this.relativeY-=i.top),this.minScrollX=0,this.minScrollY=0;var o=this.options.wheel;o?(this.items=this.scroller.children,this.options.itemHeight=this.itemHeight=this.items.length?this.scrollerHeight/this.items.length:0,void 0===this.selectedIndex&&(this.selectedIndex=o.selectedIndex||0),this.options.startY=-this.selectedIndex*this.itemHeight,this.maxScrollX=0,this.maxScrollY=-this.itemHeight*(this.items.length-1)):(this.maxScrollX=this.wrapperWidth-this.scrollerWidth,this.options.infinity||(this.maxScrollY=this.wrapperHeight-this.scrollerHeight),this.maxScrollX<0?(this.maxScrollX-=this.relativeX,this.minScrollX=-this.relativeX):1<this.scale&&(this.maxScrollX=this.maxScrollX/2-this.relativeX,this.minScrollX=this.maxScrollX),this.maxScrollY<0?(this.maxScrollY-=this.relativeY,this.minScrollY=-this.relativeY):1<this.scale&&(this.maxScrollY=this.maxScrollY/2-this.relativeY,this.minScrollY=this.maxScrollY)),this.hasHorizontalScroll=this.options.scrollX&&this.maxScrollX<this.minScrollX,this.hasVerticalScroll=this.options.scrollY&&this.maxScrollY<this.minScrollY,this.hasHorizontalScroll||(this.maxScrollX=this.minScrollX,this.scrollerWidth=this.wrapperWidth),this.hasVerticalScroll||(this.maxScrollY=this.minScrollY,this.scrollerHeight=this.wrapperHeight),this.endTime=0,this.directionX=0,this.directionY=0,this.wrapperOffset=u(this.wrapper),this.trigger("refresh"),this.scaled||this.resetPosition()},k.prototype.enable=function(){this.enabled=!0},k.prototype.disable=function(){this.enabled=!1},(L=C).prototype._start=function(t){var i=T[t.type];if((1===i||0===t.button)&&!(!this.enabled||this.destroyed||this.initiated&&this.initiated!==i)){this.initiated=i,this.options.preventDefault&&!Y(t.target,this.options.preventDefaultException)&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.moved=!1,this.distX=0,this.distY=0,this.directionX=0,this.directionY=0,this.movingDirectionX=0,this.movingDirectionY=0,this.directionLocked=0,this._transitionTime(),this.startTime=b(),this.options.wheel&&(this.target=t.target),this.stop();var e=t.touches?t.touches[0]:t;this.startX=this.x,this.startY=this.y,this.absStartX=this.x,this.absStartY=this.y,this.pointX=e.pageX,this.pointY=e.pageY,this.trigger("beforeScrollStart")}},L.prototype._move=function(t){if(this.enabled&&!this.destroyed&&T[t.type]===this.initiated){this.options.preventDefault&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation();var i=t.touches?t.touches[0]:t,e=i.pageX-this.pointX,o=i.pageY-this.pointY;this.pointX=i.pageX,this.pointY=i.pageY,this.distX+=e,this.distY+=o;var s=Math.abs(this.distX),n=Math.abs(this.distY),r=b();if(!(r-this.endTime>this.options.momentumLimitTime&&n<this.options.momentumLimitDistance&&s<this.options.momentumLimitDistance)){if(this.directionLocked||this.options.freeScroll||(s>n+this.options.directionLockThreshold?this.directionLocked="h":n>=s+this.options.directionLockThreshold?this.directionLocked="v":this.directionLocked="n"),"h"===this.directionLocked){if("vertical"===this.options.eventPassthrough)t.preventDefault();else if("horizontal"===this.options.eventPassthrough)return void(this.initiated=!1);o=0}else if("v"===this.directionLocked){if("horizontal"===this.options.eventPassthrough)t.preventDefault();else if("vertical"===this.options.eventPassthrough)return void(this.initiated=!1);e=0}e=this.hasHorizontalScroll?e:0,o=this.hasVerticalScroll?o:0,this.movingDirectionX=0<e?-1:e<0?1:0,this.movingDirectionY=0<o?-1:o<0?1:0;var a=this.x+e,l=this.y+o,h=!1,c=!1,d=!1,p=!1,u=this.options.bounce;!1!==u&&(h=void 0===u.top||u.top,c=void 0===u.bottom||u.bottom,d=void 0===u.left||u.left,p=void 0===u.right||u.right),(a>this.minScrollX||a<this.maxScrollX)&&(a=a>this.minScrollX&&d||a<this.maxScrollX&&p?this.x+e/3:a>this.minScrollX?this.minScrollX:this.maxScrollX),(l>this.minScrollY||l<this.maxScrollY)&&(l=l>this.minScrollY&&h||l<this.maxScrollY&&c?this.y+o/3:l>this.minScrollY?this.minScrollY:this.maxScrollY),this.moved||(this.moved=!0,this.trigger("scrollStart")),this._translate(a,l),r-this.startTime>this.options.momentumLimitTime&&(this.startTime=r,this.startX=this.x,this.startY=this.y,1===this.options.probeType&&this.trigger("scroll",{x:this.x,y:this.y})),1<this.options.probeType&&this.trigger("scroll",{x:this.x,y:this.y});var m=document.documentElement.scrollLeft||window.pageXOffset||document.body.scrollLeft,f=document.documentElement.scrollTop||window.pageYOffset||document.body.scrollTop,v=this.pointX-m,g=this.pointY-f;(v>document.documentElement.clientWidth-this.options.momentumLimitDistance||v<this.options.momentumLimitDistance||g<this.options.momentumLimitDistance||g>document.documentElement.clientHeight-this.options.momentumLimitDistance)&&this._end(t)}}},L.prototype._end=function(t){if(this.enabled&&!this.destroyed&&T[t.type]===this.initiated){this.initiated=!1,this.options.preventDefault&&!Y(t.target,this.options.preventDefaultException)&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.trigger("touchEnd",{x:this.x,y:this.y}),this.isInTransition=!1;var i=Math.round(this.x),e=Math.round(this.y),o=i-this.absStartX,s=e-this.absStartY;if(this.directionX=0<o?-1:o<0?1:0,this.directionY=0<s?-1:s<0?1:0,!this.options.pullDownRefresh||!this._checkPullDown())if(this._checkClick(t))this.trigger("scrollCancel");else if(!this.resetPosition(this.options.bounceTime,X.bounce)){this._translate(i,e),this.endTime=b();var n=this.endTime-this.startTime,r=Math.abs(i-this.startX),a=Math.abs(e-this.startY);if(this._events.flick&&n<this.options.flickLimitTime&&r<this.options.flickLimitDistance&&a<this.options.flickLimitDistance)this.trigger("flick");else{var l=0;if(this.options.momentum&&n<this.options.momentumLimitTime&&(a>this.options.momentumLimitDistance||r>this.options.momentumLimitDistance)){var h=!1,c=!1,d=!1,p=!1,u=this.options.bounce;!1!==u&&(h=void 0===u.top||u.top,c=void 0===u.bottom||u.bottom,d=void 0===u.left||u.left,p=void 0===u.right||u.right);var m=-1===this.directionX&&d||1===this.directionX&&p?this.wrapperWidth:0,f=-1===this.directionY&&h||1===this.directionY&&c?this.wrapperHeight:0,v=this.hasHorizontalScroll?_(this.x,this.startX,n,this.maxScrollX,this.minScrollX,m,this.options):{destination:i,duration:0},g=this.hasVerticalScroll?_(this.y,this.startY,n,this.maxScrollY,this.minScrollY,f,this.options):{destination:e,duration:0};i=v.destination,e=g.destination,l=Math.max(v.duration,g.duration),this.isInTransition=!0}else this.options.wheel&&(e=Math.round(e/this.itemHeight)*this.itemHeight,l=this.options.wheel.adjustTime||400);var w=X.swipe;if(this.options.snap){var y=this._nearestSnap(i,e);this.currentPage=y,l=this.options.snapSpeed||Math.max(Math.max(Math.min(Math.abs(i-y.x),1e3),Math.min(Math.abs(e-y.y),1e3)),300),i=y.x,e=y.y,this.directionX=0,this.directionY=0,w=this.options.snap.easing||X.bounce}if(i!==this.x||e!==this.y)return(i>this.minScrollX||i<this.maxScrollX||e>this.minScrollY||e<this.maxScrollY)&&(w=X.swipeBounce),void this.scrollTo(i,e,l,w);this.options.wheel&&(this.selectedIndex=Math.round(Math.abs(this.y/this.itemHeight))),this.trigger("scrollEnd",{x:this.x,y:this.y})}}}},L.prototype._checkClick=function(t){var i,e,o,s,n,r=this.stopFromTransition&&!this.pulling;if(this.stopFromTransition=!1,this.moved)return!1;if(this.options.wheel){if(this.target&&this.target.classList.contains(this.options.wheel.wheelWrapperClass)){var a=Math.abs(Math.round(this.y/this.itemHeight)),l=Math.round((this.pointY+(s=this.wrapper,{left:-((n=s.getBoundingClientRect()).left+window.pageXOffset),top:-(n.top+window.pageYOffset)}).top-this.wrapperHeight/2)/this.itemHeight);this.target=this.items[a+l]}return this.scrollToElement(this.target,this.options.wheel.adjustTime||400,!0,!0,X.swipe),!0}if(r)return!1;var h=this.options.dblclick,c=!1;if(h&&this.lastClickTime){var d=h.delay,p=void 0===d?300:d;b()-this.lastClickTime<p&&(c=!0,D(t,"dblclick"))}return this.options.tap&&(i=t,e=this.options.tap,(o=document.createEvent("Event")).initEvent(e,!0,!0),o.pageX=i.pageX,o.pageY=i.pageY,i.target.dispatchEvent(o)),this.options.click&&!Y(t.target,this.options.preventDefaultException)&&D(t),this.lastClickTime=c?null:b(),!0},L.prototype._resize=function(){var t=this;this.enabled&&(o&&(this.wrapper.scrollTop=0),clearTimeout(this.resizeTimeout),this.resizeTimeout=setTimeout(function(){t.refresh()},this.options.resizePolling))},L.prototype._startProbe=function(){z(this.probeTimer),this.probeTimer=I(function t(){var i=e.getComputedPosition();e.trigger("scroll",i),e.isInTransition?e.probeTimer=I(t):e.trigger("scrollEnd",i)});var e=this},L.prototype._transitionTime=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0;if(this.scrollerStyle[x.transitionDuration]=t+"ms",this.options.wheel)for(var i=0;i<this.items.length;i++)this.items[i].style[x.transitionDuration]=t+"ms";if(this.indicators)for(var e=0;e<this.indicators.length;e++)this.indicators[e].transitionTime(t)},L.prototype._transitionTimingFunction=function(t){if(this.scrollerStyle[x.transitionTimingFunction]=t,this.options.wheel)for(var i=0;i<this.items.length;i++)this.items[i].style[x.transitionTimingFunction]=t;if(this.indicators)for(var e=0;e<this.indicators.length;e++)this.indicators[e].transitionTimingFunction(t)},L.prototype._transitionEnd=function(t){t.target===this.scroller&&this.isInTransition&&(this._transitionTime(),this.pulling&&1!==this.movingDirectionY||this.resetPosition(this.options.bounceTime,X.bounce)||(this.isInTransition=!1,3!==this.options.probeType&&this.trigger("scrollEnd",{x:this.x,y:this.y})))},L.prototype._translate=function(t,i,e){if(function(t){if(!t)throw new Error("[BScroll] Translate x or y is null or undefined.")}(!c(t)&&!c(i)),c(e)&&(e=this.scale),this.options.useTransform?this.scrollerStyle[x.transform]="translate("+t+"px,"+i+"px) scale("+e+")"+this.translateZ:(t=Math.round(t),i=Math.round(i),this.scrollerStyle.left=t+"px",this.scrollerStyle.top=i+"px"),this.options.wheel)for(var o=this.options.wheel.rotate,s=void 0===o?25:o,n=0;n<this.items.length;n++){var r=s*(i/this.itemHeight+n);this.items[n].style[x.transform]="rotateX("+r+"deg)"}if(this.x=t,this.y=i,this.setScale(e),this.indicators)for(var a=0;a<this.indicators.length;a++)this.indicators[a].updatePosition()},L.prototype._animate=function(r,a,l,h){var c=this,d=this.x,p=this.y,u=this.lastScale,m=this.scale,f=b(),v=f+l;this.isAnimating=!0,z(this.animateTimer),function t(){var i=b();if(v<=i)return c.isAnimating=!1,c._translate(r,a,m),c.trigger("scroll",{x:c.x,y:c.y}),void(c.pulling||c.resetPosition(c.options.bounceTime)||c.trigger("scrollEnd",{x:c.x,y:c.y}));var e=h(i=(i-f)/l),o=(r-d)*e+d,s=(a-p)*e+p,n=(m-u)*e+u;c._translate(o,s,n),c.isAnimating&&(c.animateTimer=I(t)),3===c.options.probeType&&c.trigger("scroll",{x:c.x,y:c.y})}()},L.prototype.scrollBy=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0,o=3<arguments.length&&void 0!==arguments[3]?arguments[3]:X.bounce;t=this.x+t,i=this.y+i,this.scrollTo(t,i,e,o)},L.prototype.scrollTo=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0,o=3<arguments.length&&void 0!==arguments[3]?arguments[3]:X.bounce;this.x===t&&this.y===i||(this.isInTransition=this.options.useTransition&&0<e&&(t!==this.x||i!==this.y),!e||this.options.useTransition?(this._transitionTimingFunction(o.style),this._transitionTime(e),this._translate(t,i),e&&3===this.options.probeType&&this._startProbe(),e||(this.trigger("scroll",{x:t,y:i}),this._reflow=document.body.offsetHeight,this.resetPosition(this.options.bounceTime,X.bounce)||this.trigger("scrollEnd",{x:t,y:i})),this.options.wheel&&(i>this.minScrollY?this.selectedIndex=0:i<this.maxScrollY?this.selectedIndex=this.items.length-1:this.selectedIndex=Math.round(Math.abs(i/this.itemHeight)))):this._animate(t,i,e,o.fn))},L.prototype.scrollToElement=function(t,i,e,o,s){if(t&&(t=t.nodeType?t:this.scroller.querySelector(t),!this.options.wheel||t.classList.contains(this.options.wheel.wheelItemClass))){var n=u(t);n.left-=this.wrapperOffset.left,n.top-=this.wrapperOffset.top,!0===e&&(e=Math.round(t.offsetWidth/2-this.wrapper.offsetWidth/2)),!0===o&&(o=Math.round(t.offsetHeight/2-this.wrapper.offsetHeight/2)),n.left-=e||0,n.top-=o||0,n.left=n.left>this.minScrollX?this.minScrollX:n.left<this.maxScrollX?this.maxScrollX:n.left,n.top=n.top>this.minScrollY?this.minScrollY:n.top<this.maxScrollY?this.maxScrollY:n.top,this.options.wheel&&(n.top=Math.round(n.top/this.itemHeight)*this.itemHeight),this.scrollTo(n.left,n.top,i,s)}},L.prototype.resetPosition=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,i=1<arguments.length&&void 0!==arguments[1]?arguments[1]:X.bounce,e=this.x,o=Math.round(e);!this.hasHorizontalScroll||o>this.minScrollX?e=this.minScrollX:o<this.maxScrollX&&(e=this.maxScrollX);var s=this.y,n=Math.round(s);return!this.hasVerticalScroll||n>this.minScrollY?s=this.minScrollY:n<this.maxScrollY&&(s=this.maxScrollY),(e!==this.x||s!==this.y)&&(this.scrollTo(e,s,t,i),!0)},L.prototype.getComputedPosition=function(){var t=window.getComputedStyle(this.scroller,null),i=void 0,e=void 0;return e=this.options.useTransform?(i=+((t=t[x.transform].split(")")[0].split(", "))[12]||t[4]),+(t[13]||t[5])):(i=+t.left.replace(/[^-\d.]/g,""),+t.top.replace(/[^-\d.]/g,"")),{x:i,y:e}},L.prototype.stop=function(){if(this.options.useTransition&&this.isInTransition){this.isInTransition=!1,z(this.probeTimer);var t=this.getComputedPosition();this._translate(t.x,t.y),this.options.wheel?this.target=this.items[Math.round(-t.y/this.itemHeight)]:this.trigger("scrollEnd",{x:this.x,y:this.y}),this.stopFromTransition=!0}else!this.options.useTransition&&this.isAnimating&&(this.isAnimating=!1,z(this.animateTimer),this.trigger("scrollEnd",{x:this.x,y:this.y}),this.stopFromTransition=!0)},L.prototype.destroy=function(){this.destroyed=!0,this.trigger("destroy"),this.options.useTransition?z(this.probeTimer):z(this.animateTimer),this._removeDOMEvents(),this._events={}},(O=C).prototype.on=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:this;this._events[t]||(this._events[t]=[]),this._events[t].push([i,e])},O.prototype.once=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:this;function o(){this.off(t,o),i.apply(e,arguments)}o.fn=i,this.on(t,o)},O.prototype.off=function(t,i){var e=this._events[t];if(e)for(var o=e.length;o--;)(e[o][0]===i||e[o][0]&&e[o][0].fn===i)&&s(e,o)},O.prototype.trigger=function(t){var i=this._events[t];if(i)for(var e=i.length,o=[].concat(function(t){if(Array.isArray(t)){for(var i=0,e=Array(t.length);i<t.length;i++)e[i]=t[i];return e}return Array.from(t)}(i)),s=0;s<e;s++){var n=o[s],r=h(n,2),a=r[0],l=r[1];a&&a.apply(l,[].slice.call(arguments,1))}},(P=C).prototype.wheelTo=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0;if(this.options.wheel){var i=-t*this.itemHeight;this.scrollTo(0,i)}},P.prototype.getSelectedIndex=function(){return this.options.wheel&&this.selectedIndex},P.prototype._initWheel=function(){var t=this.options.wheel;t.wheelWrapperClass||(t.wheelWrapperClass="wheel-scroll"),t.wheelItemClass||(t.wheelItemClass="wheel-item"),void 0===t.selectedIndex&&(t.selectedIndex=0,W("wheel option selectedIndex is required!"))},(H=C).prototype._initMouseWheel=function(){var t=this;this._handleMouseWheelEvent(d),this.on("destroy",function(){clearTimeout(t.mouseWheelTimer),clearTimeout(t.mouseWheelEndTimer),t._handleMouseWheelEvent(p)}),this.firstWheelOpreation=!0},H.prototype._handleMouseWheelEvent=function(t){t(this.wrapper,"wheel",this),t(this.wrapper,"mousewheel",this),t(this.wrapper,"DOMMouseScroll",this)},H.prototype._onMouseWheel=function(t){var i=this;if(this.enabled){t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.firstWheelOpreation&&this.trigger("scrollStart"),this.firstWheelOpreation=!1;var e=this.options.mouseWheel,o=e.speed,s=void 0===o?20:o,n=e.invert,r=void 0!==n&&n,a=e.easeTime,l=void 0===a?300:a;clearTimeout(this.mouseWheelTimer),this.mouseWheelTimer=setTimeout(function(){i.options.snap||l||i.trigger("scrollEnd",{x:i.x,y:i.y}),i.firstWheelOpreation=!0},400);var h=void 0,c=void 0;switch(!0){case"deltaX"in t:c=1===t.deltaMode?(h=-t.deltaX*s,-t.deltaY*s):(h=-t.deltaX,-t.deltaY);break;case"wheelDeltaX"in t:h=t.wheelDeltaX/120*s,c=t.wheelDeltaY/120*s;break;case"wheelDelta"in t:h=c=t.wheelDelta/120*s;break;case"detail"in t:h=c=-t.detail/3*s;break;default:return}var d=r?-1:1;h*=d,c*=d,this.hasVerticalScroll||(h=c,c=0);var p=void 0,u=void 0;if(this.options.snap)return p=this.currentPage.pageX,u=this.currentPage.pageY,0<h?p--:h<0&&p++,0<c?u--:c<0&&u++,void this._goToPage(p,u);p=this.x+Math.round(this.hasHorizontalScroll?h:0),u=this.y+Math.round(this.hasVerticalScroll?c:0),this.movingDirectionX=this.directionX=0<h?-1:h<0?1:0,this.movingDirectionY=this.directionY=0<c?-1:c<0?1:0,p>this.minScrollX?p=this.minScrollX:p<this.maxScrollX&&(p=this.maxScrollX),u>this.minScrollY?u=this.minScrollY:u<this.maxScrollY&&(u=this.maxScrollY);var m=this.y===u;this.scrollTo(p,u,l,X.swipe),this.trigger("scroll",{x:this.x,y:this.y}),clearTimeout(this.mouseWheelEndTimer),m&&(this.mouseWheelEndTimer=setTimeout(function(){i.trigger("scrollEnd",{x:i.x,y:i.y})},l))}},C.Version="1.14.1",C}()}(t={exports:{}},t.exports),t.exports);function i(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},i=this,e=void 0;if(i.extend(t),t.el){if(!(e=S(t.el))||e.bindRolldate)return;e.bindRolldate=1,i.tap(e,function(){i.show()})}if(t.value){t.el&&("input"==e.nodeName.toLowerCase()?e.value=t.value:e.innerText=t.value);var o=t.value.replace(/-/g,"/").replace(/[^\d/:\s]/g,""),s=new Date(o);s&&"Invalid Date"!=s?t.el?e.bindDate=s:i.bindDate=s:console.error("Invalid Date："+o)}}return i.prototype={constructor:i,baseData:function(){return{domId:{YYYY:"rolldate-year",MM:"rolldate-month",DD:"rolldate-day",hh:"rolldate-hour",mm:"rolldate-min",ss:"rolldate-sec"},opts:{el:"",format:"YYYY-MM-DD",beginYear:2e3,endYear:2100,init:null,moveEnd:null,confirm:null,cancel:null,minStep:1,trigger:"tap",lang:{title:"选择日期",cancel:"取消",confirm:"确认",year:"年",month:"月",day:"日",hour:"时",min:"分",sec:"秒"}}}},extend:function(t){var i=this.baseData().opts;for(var e in i)if(i[e]&&"[object Object]"==Object.prototype.toString.call(i[e]))for(var o in t[e])i[e][o]=null==t[e][o]?i[e][o]:t[e][o];else i[e]=t[e]||i[e];this.config=i},createUI:function(){for(var n=this,t=n.baseData(),r=n.config,a=t.domId,l=r.format.split(/-|\/|\s|:/g),i=l.length,e="",h=r.el?S(r.el).bindDate||new Date:n.bindDate||new Date,c=r.lang,o=0;o<i;o++){var s=l[o],d=0;if(e+='<div id="'+a[s]+'"><ul class="wheel-scroll">',"YYYY"==s)for(var p=r.beginYear;p<=r.endYear;p++)e+='<li class="wheel-item '+(p==h.getFullYear()?"active":"")+'" data-index="'+d+'">'+p+c.year+"</li>",d++;else if("MM"==s)for(var u=1;u<=12;u++)e+='<li class="wheel-item '+(u==h.getMonth()+1?"active":"")+'" data-index="'+d+'">'+(u<10?"0"+u:u)+c.month+"</li>",d++;else if("DD"==s)for(var m=n.getMonthlyDay(h.getFullYear(),h.getMonth()+1),f=1;f<=m;f++)e+='<li class="wheel-item '+(f==h.getDate()?"active":"")+'" data-index="'+d+'">'+(f<10?"0"+f:f)+c.day+"</li>",d++;else if("hh"==s)for(var v=0;v<=23;v++)e+='<li class="wheel-item '+(v==h.getHours()?"active":"")+'" data-index="'+d+'">'+(v<10?"0"+v:v)+c.hour+"</li>",d++;else if("mm"==s)for(var g=0;g<=59;g+=r.minStep)e+='<li class="wheel-item '+(g==h.getMinutes()?"active":"")+'" data-index="'+d+'">'+(g<10?"0"+g:g)+c.min+"</li>",d++;else if("ss"==s)for(var w=0;w<=59;w++)e+='<li class="wheel-item '+(w==h.getSeconds()?"active":"")+'" data-index="'+d+'">'+(w<10?"0"+w:w)+c.sec+"</li>",d++;e+="</ul></div>"}var y='<div class="rolldate-mask"></div>\n            <div class="rolldate-panel">\n                <header>\n 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e?(t.addEventListener("touchstart",i),t.addEventListener("touchend",s)):(t.removeEventListener("touchstart",i),t.removeEventListener("touchend",s))}else{var n=function(t){e.call(this,t)};"function"==typeof e?t.addEventListener("click",n):t.removeEventListener("click",n)}},show:function(){var t=this.config,i=void 0;if(t.el){if(!(i=S(t.el)).bindRolldate)return;"input"==i.nodeName.toLowerCase()&&i.blur()}S(".rolldate-container")||t.init&&!1===t.init.call(this)||(this.createUI(),this.event())},hide:function(t){var i=S(".rolldate-panel.fadeIn");i&&(i.className="rolldate-panel fadeOut",this.destroy(t))},event:function(){var a=this,t=S(".rolldate-mask"),i=S(".rolldate-cancel"),e=S(".rolldate-confirm");a.tap(t,function(){a.hide(1)}),a.tap(i,function(){a.hide(1)}),a.tap(e,function(){var t=a.config,i=void 0,e=t.format,o=new Date;for(var s in a.scroll){var n=a.getSelected(a.scroll[s]);e=e.replace(s,n),"YYYY"==s?o.setFullYear(n):"MM"==s?o.setMonth(n-1):"DD"==s?o.setDate(n):"hh"==s?o.setHours(n):"mm"==s?o.setMinutes(n):"ss"==s&&o.setSeconds(n)}if(t.confirm){var r=t.confirm.call(a,e);if(!1===r)return!1;r&&(e=r)}t.el?("input"==(i=S(t.el)).nodeName.toLowerCase()?i.value=e:i.innerText=e,i.bindDate=o):a.bindDate=o,a.hide()})},getMonthlyDay:function(t,i){var e=void 0;return 1==i||3==i||5==i||7==i||8==i||10==i||12==i?e=31:4==i||6==i||11==i||9==i?e=30:2==i&&(e=t%4!=0||t%100==0&&t%400!=0?28:29),e},destroy:function(t){var i=this,e=i.config;for(var o in i.scroll)i.scroll[o].destroy();t&&e.cancel&&e.cancel.call(i),i.tap(S(".rolldate-mask"),0),i.tap(S(".rolldate-cancel"),0),i.tap(S(".rolldate-confirm"),0),setTimeout(function(){var t=S(".rolldate-container");t&&document.body.removeChild(t),t=null},300)},getSelected:function(t){return S("#"+t.wrapper.id+" li",1)[t.getSelectedIndex()].innerText.replace(/\D/g,"")}},i.version="3.1.3",i});
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s=this,n=!1,t=this.options.useTransition?"isInTransition":"isAnimating";Object.defineProperty(this,t,{get:function(){return n},set:function(t){n=t;for(var i=s.scroller.children.length?s.scroller.children:[s.scroller],e=n&&!s.pulling?"none":"auto",o=0;o<i.length;o++)i[o].style.pointerEvents=e}})}},k.prototype._handleAutoBlur=function(){this.on("scrollStart",function(){var t=document.activeElement;!t||"INPUT"!==t.tagName&&"TEXTAREA"!==t.tagName||t.blur()})},k.prototype._initDOMObserver=function(){var n=this;if("undefined"!=typeof MutationObserver){var r=void 0,t=new MutationObserver(function(t){if(!n._shouldNotRefresh()){for(var i=!1,e=!1,o=0;o<t.length;o++){var s=t[o];if("attributes"!==s.type){i=!0;break}if(s.target!==n.scroller){e=!0;break}}i?n.refresh():e&&(clearTimeout(r),r=setTimeout(function(){n._shouldNotRefresh()||n.refresh()},60))}});t.observe(this.scroller,{attributes:!0,childList:!0,subtree:!0}),this.on("destroy",function(){t.disconnect()})}else this._checkDOMUpdate()},k.prototype._shouldNotRefresh=function(){var t=this.x>this.minScrollX||this.x<this.maxScrollX||this.y>this.minScrollY||this.y<this.maxScrollY;return this.isInTransition||this.stopFromTransition||t},k.prototype._checkDOMUpdate=function(){var o=S(this.scroller),s=o.width,n=o.height;(function e(){var t=this;setTimeout(function(){(function(){if(!this.destroyed){var t=(o=S(this.scroller)).width,i=o.height;s===t&&n===i||this.refresh(),s=t,n=i,e.call(this)}}).call(t)},1e3)}).call(this)},k.prototype.handleEvent=function(t){switch(t.type){case"touchstart":case"mousedown":this._start(t),this.options.zoom&&t.touches&&1<t.touches.length&&this._zoomStart(t);break;case"touchmove":case"mousemove":this.options.zoom&&t.touches&&1<t.touches.length?this._zoom(t):this._move(t);break;case"touchend":case"mouseup":case"touchcancel":case"mousecancel":this.scaled?this._zoomEnd(t):this._end(t);break;case"orientationchange":case"resize":this._resize();break;case"transitionend":case"webkitTransitionEnd":case"oTransitionEnd":case"MSTransitionEnd":this._transitionEnd(t);break;case"click":this.enabled&&!t._constructed&&(Y(t.target,this.options.preventDefaultException)||(t.preventDefault(),t.stopPropagation()));break;case"wheel":case"DOMMouseScroll":case"mousewheel":this._onMouseWheel(t)}},k.prototype.refresh=function(){var t="static"===window.getComputedStyle(this.wrapper,null).position,i=S(this.wrapper);this.wrapperWidth=i.width,this.wrapperHeight=i.height;var e=S(this.scroller);this.scrollerWidth=Math.round(e.width*this.scale),this.scrollerHeight=Math.round(e.height*this.scale),this.relativeX=e.left,this.relativeY=e.top,t&&(this.relativeX-=i.left,this.relativeY-=i.top),this.minScrollX=0,this.minScrollY=0;var o=this.options.wheel;o?(this.items=this.scroller.children,this.options.itemHeight=this.itemHeight=this.items.length?this.scrollerHeight/this.items.length:0,void 0===this.selectedIndex&&(this.selectedIndex=o.selectedIndex||0),this.options.startY=-this.selectedIndex*this.itemHeight,this.maxScrollX=0,this.maxScrollY=-this.itemHeight*(this.items.length-1)):(this.maxScrollX=this.wrapperWidth-this.scrollerWidth,this.options.infinity||(this.maxScrollY=this.wrapperHeight-this.scrollerHeight),this.maxScrollX<0?(this.maxScrollX-=this.relativeX,this.minScrollX=-this.relativeX):1<this.scale&&(this.maxScrollX=this.maxScrollX/2-this.relativeX,this.minScrollX=this.maxScrollX),this.maxScrollY<0?(this.maxScrollY-=this.relativeY,this.minScrollY=-this.relativeY):1<this.scale&&(this.maxScrollY=this.maxScrollY/2-this.relativeY,this.minScrollY=this.maxScrollY)),this.hasHorizontalScroll=this.options.scrollX&&this.maxScrollX<this.minScrollX,this.hasVerticalScroll=this.options.scrollY&&this.maxScrollY<this.minScrollY,this.hasHorizontalScroll||(this.maxScrollX=this.minScrollX,this.scrollerWidth=this.wrapperWidth),this.hasVerticalScroll||(this.maxScrollY=this.minScrollY,this.scrollerHeight=this.wrapperHeight),this.endTime=0,this.directionX=0,this.directionY=0,this.wrapperOffset=u(this.wrapper),this.trigger("refresh"),!this.scaled&&this.resetPosition()},k.prototype.enable=function(){this.enabled=!0},k.prototype.disable=function(){this.enabled=!1},(L=C).prototype._start=function(t){var i=T[t.type];if((1===i||0===t.button)&&!(!this.enabled||this.destroyed||this.initiated&&this.initiated!==i)){this.initiated=i,this.options.preventDefault&&!Y(t.target,this.options.preventDefaultException)&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.moved=!1,this.distX=0,this.distY=0,this.directionX=0,this.directionY=0,this.movingDirectionX=0,this.movingDirectionY=0,this.directionLocked=0,this._transitionTime(),this.startTime=x(),this.options.wheel&&(this.target=t.target),this.stop();var e=t.touches?t.touches[0]:t;this.startX=this.x,this.startY=this.y,this.absStartX=this.x,this.absStartY=this.y,this.pointX=e.pageX,this.pointY=e.pageY,this.trigger("beforeScrollStart")}},L.prototype._move=function(t){if(this.enabled&&!this.destroyed&&T[t.type]===this.initiated){this.options.preventDefault&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation();var i=t.touches?t.touches[0]:t,e=i.pageX-this.pointX,o=i.pageY-this.pointY;this.pointX=i.pageX,this.pointY=i.pageY,this.distX+=e,this.distY+=o;var s=Math.abs(this.distX),n=Math.abs(this.distY),r=x();if(!(r-this.endTime>this.options.momentumLimitTime&&n<this.options.momentumLimitDistance&&s<this.options.momentumLimitDistance)){if(this.directionLocked||this.options.freeScroll||(s>n+this.options.directionLockThreshold?this.directionLocked="h":n>=s+this.options.directionLockThreshold?this.directionLocked="v":this.directionLocked="n"),"h"===this.directionLocked){if("vertical"===this.options.eventPassthrough)t.preventDefault();else if("horizontal"===this.options.eventPassthrough)return void(this.initiated=!1);o=0}else if("v"===this.directionLocked){if("horizontal"===this.options.eventPassthrough)t.preventDefault();else if("vertical"===this.options.eventPassthrough)return void(this.initiated=!1);e=0}e=this.hasHorizontalScroll?e:0,o=this.hasVerticalScroll?o:0,this.movingDirectionX=0<e?-1:e<0?1:0,this.movingDirectionY=0<o?-1:o<0?1:0;var a=this.x+e,l=this.y+o,h=!1,c=!1,d=!1,p=!1,u=this.options.bounce;!1!==u&&(h=void 0===u.top||u.top,c=void 0===u.bottom||u.bottom,d=void 0===u.left||u.left,p=void 0===u.right||u.right),(a>this.minScrollX||a<this.maxScrollX)&&(a=a>this.minScrollX&&d||a<this.maxScrollX&&p?this.x+e/3:a>this.minScrollX?this.minScrollX:this.maxScrollX),(l>this.minScrollY||l<this.maxScrollY)&&(l=l>this.minScrollY&&h||l<this.maxScrollY&&c?this.y+o/3:l>this.minScrollY?this.minScrollY:this.maxScrollY),this.moved||(this.moved=!0,this.trigger("scrollStart")),this._translate(a,l),r-this.startTime>this.options.momentumLimitTime&&(this.startTime=r,this.startX=this.x,this.startY=this.y,1===this.options.probeType&&this.trigger("scroll",{x:this.x,y:this.y})),1<this.options.probeType&&this.trigger("scroll",{x:this.x,y:this.y});var m=document.documentElement.scrollLeft||window.pageXOffset||document.body.scrollLeft,f=document.documentElement.scrollTop||window.pageYOffset||document.body.scrollTop,v=this.pointX-m,g=this.pointY-f;(v>document.documentElement.clientWidth-this.options.momentumLimitDistance||v<this.options.momentumLimitDistance||g<this.options.momentumLimitDistance||g>document.documentElement.clientHeight-this.options.momentumLimitDistance)&&this._end(t)}}},L.prototype._end=function(t){if(this.enabled&&!this.destroyed&&T[t.type]===this.initiated){this.initiated=!1,this.options.preventDefault&&!Y(t.target,this.options.preventDefaultException)&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.trigger("touchEnd",{x:this.x,y:this.y}),this.isInTransition=!1;var i=Math.round(this.x),e=Math.round(this.y),o=i-this.absStartX,s=e-this.absStartY;if(this.directionX=0<o?-1:o<0?1:0,this.directionY=0<s?-1:s<0?1:0,!this.options.pullDownRefresh||!this._checkPullDown())if(this._checkClick(t))this.trigger("scrollCancel");else if(!this.resetPosition(this.options.bounceTime,X.bounce)){this._translate(i,e),this.endTime=x();var n=this.endTime-this.startTime,r=Math.abs(i-this.startX),a=Math.abs(e-this.startY);if(this._events.flick&&n<this.options.flickLimitTime&&r<this.options.flickLimitDistance&&a<this.options.flickLimitDistance)this.trigger("flick");else{var l=0;if(this.options.momentum&&n<this.options.momentumLimitTime&&(a>this.options.momentumLimitDistance||r>this.options.momentumLimitDistance)){var h=!1,c=!1,d=!1,p=!1,u=this.options.bounce;!1!==u&&(h=void 0===u.top||u.top,c=void 0===u.bottom||u.bottom,d=void 0===u.left||u.left,p=void 0===u.right||u.right);var m=-1===this.directionX&&d||1===this.directionX&&p?this.wrapperWidth:0,f=-1===this.directionY&&h||1===this.directionY&&c?this.wrapperHeight:0,v=this.hasHorizontalScroll?_(this.x,this.startX,n,this.maxScrollX,this.minScrollX,m,this.options):{destination:i,duration:0},g=this.hasVerticalScroll?_(this.y,this.startY,n,this.maxScrollY,this.minScrollY,f,this.options):{destination:e,duration:0};i=v.destination,e=g.destination,l=Math.max(v.duration,g.duration),this.isInTransition=!0}else this.options.wheel&&(e=Math.round(e/this.itemHeight)*this.itemHeight,l=this.options.wheel.adjustTime||400);var w=X.swipe;if(this.options.snap){var y=this._nearestSnap(i,e);this.currentPage=y,l=this.options.snapSpeed||Math.max(Math.max(Math.min(Math.abs(i-y.x),1e3),Math.min(Math.abs(e-y.y),1e3)),300),i=y.x,e=y.y,this.directionX=0,this.directionY=0,w=this.options.snap.easing||X.bounce}if(i!==this.x||e!==this.y)return(i>this.minScrollX||i<this.maxScrollX||e>this.minScrollY||e<this.maxScrollY)&&(w=X.swipeBounce),void this.scrollTo(i,e,l,w);this.options.wheel&&(this.selectedIndex=Math.round(Math.abs(this.y/this.itemHeight))),this.trigger("scrollEnd",{x:this.x,y:this.y})}}}},L.prototype._checkClick=function(t){var i,e,o,s,n,r=this.stopFromTransition&&!this.pulling;if(this.stopFromTransition=!1,this.moved)return!1;if(this.options.wheel){if(this.target&&this.target.classList.contains(this.options.wheel.wheelWrapperClass)){var a=Math.abs(Math.round(this.y/this.itemHeight)),l=Math.round((this.pointY+(s=this.wrapper,n=s.getBoundingClientRect(),{left:-(n.left+window.pageXOffset),top:-(n.top+window.pageYOffset)}).top-this.wrapperHeight/2)/this.itemHeight);this.target=this.items[a+l]}return this.scrollToElement(this.target,this.options.wheel.adjustTime||400,!0,!0,X.swipe),!0}if(r)return!1;var h=this.options.dblclick,c=!1;if(h&&this.lastClickTime){var d=h.delay,p=void 0===d?300:d;x()-this.lastClickTime<p&&(c=!0,D(t,"dblclick"))}return this.options.tap&&(i=t,e=this.options.tap,(o=document.createEvent("Event")).initEvent(e,!0,!0),o.pageX=i.pageX,o.pageY=i.pageY,i.target.dispatchEvent(o)),this.options.click&&!Y(t.target,this.options.preventDefaultException)&&D(t),this.lastClickTime=c?null:x(),!0},L.prototype._resize=function(){var t=this;this.enabled&&(o&&(this.wrapper.scrollTop=0),clearTimeout(this.resizeTimeout),this.resizeTimeout=setTimeout(function(){t.refresh()},this.options.resizePolling))},L.prototype._startProbe=function(){W(this.probeTimer),this.probeTimer=I(function t(){var i=e.getComputedPosition();e.trigger("scroll",i),e.isInTransition?e.probeTimer=I(t):e.trigger("scrollEnd",i)});var e=this},L.prototype._transitionTime=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0;if(this.scrollerStyle[b.transitionDuration]=t+"ms",this.options.wheel)for(var i=0;i<this.items.length;i++)this.items[i].style[b.transitionDuration]=t+"ms";if(this.indicators)for(var e=0;e<this.indicators.length;e++)this.indicators[e].transitionTime(t)},L.prototype._transitionTimingFunction=function(t){if(this.scrollerStyle[b.transitionTimingFunction]=t,this.options.wheel)for(var i=0;i<this.items.length;i++)this.items[i].style[b.transitionTimingFunction]=t;if(this.indicators)for(var e=0;e<this.indicators.length;e++)this.indicators[e].transitionTimingFunction(t)},L.prototype._transitionEnd=function(t){t.target===this.scroller&&this.isInTransition&&(this._transitionTime(),(!this.pulling||1===this.movingDirectionY)&&!this.resetPosition(this.options.bounceTime,X.bounce)&&(this.isInTransition=!1,3!==this.options.probeType&&this.trigger("scrollEnd",{x:this.x,y:this.y})))},L.prototype._translate=function(t,i,e){if(function(t,i){if(!t)throw new Error("[BScroll] Translate x or y is null or undefined.")}(!c(t)&&!c(i)),c(e)&&(e=this.scale),this.options.useTransform?this.scrollerStyle[b.transform]="translate("+t+"px,"+i+"px) scale("+e+")"+this.translateZ:(t=Math.round(t),i=Math.round(i),this.scrollerStyle.left=t+"px",this.scrollerStyle.top=i+"px"),this.options.wheel)for(var o=this.options.wheel.rotate,s=void 0===o?25:o,n=0;n<this.items.length;n++){var r=s*(i/this.itemHeight+n);this.items[n].style[b.transform]="rotateX("+r+"deg)"}if(this.x=t,this.y=i,this.setScale(e),this.indicators)for(var a=0;a<this.indicators.length;a++)this.indicators[a].updatePosition()},L.prototype._animate=function(r,a,l,h){var c=this,d=this.x,p=this.y,u=this.lastScale,m=this.scale,f=x(),v=f+l;this.isAnimating=!0,W(this.animateTimer),function t(){var i=x();if(v<=i)return c.isAnimating=!1,c._translate(r,a,m),c.trigger("scroll",{x:c.x,y:c.y}),void(c.pulling||c.resetPosition(c.options.bounceTime)||c.trigger("scrollEnd",{x:c.x,y:c.y}));var e=h(i=(i-f)/l),o=(r-d)*e+d,s=(a-p)*e+p,n=(m-u)*e+u;c._translate(o,s,n),c.isAnimating&&(c.animateTimer=I(t)),3===c.options.probeType&&c.trigger("scroll",{x:c.x,y:c.y})}()},L.prototype.scrollBy=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0,o=3<arguments.length&&void 0!==arguments[3]?arguments[3]:X.bounce;t=this.x+t,i=this.y+i,this.scrollTo(t,i,e,o)},L.prototype.scrollTo=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0,o=3<arguments.length&&void 0!==arguments[3]?arguments[3]:X.bounce;(this.x!==t||this.y!==i)&&(this.isInTransition=this.options.useTransition&&0<e&&(t!==this.x||i!==this.y),!e||this.options.useTransition?(this._transitionTimingFunction(o.style),this._transitionTime(e),this._translate(t,i),e&&3===this.options.probeType&&this._startProbe(),e||(this.trigger("scroll",{x:t,y:i}),this._reflow=document.body.offsetHeight,this.resetPosition(this.options.bounceTime,X.bounce)||this.trigger("scrollEnd",{x:t,y:i})),this.options.wheel&&(i>this.minScrollY?this.selectedIndex=0:i<this.maxScrollY?this.selectedIndex=this.items.length-1:this.selectedIndex=Math.round(Math.abs(i/this.itemHeight)))):this._animate(t,i,e,o.fn))},L.prototype.scrollToElement=function(t,i,e,o,s){if(t&&(t=t.nodeType?t:this.scroller.querySelector(t),!this.options.wheel||t.classList.contains(this.options.wheel.wheelItemClass))){var n=u(t);n.left-=this.wrapperOffset.left,n.top-=this.wrapperOffset.top,!0===e&&(e=Math.round(t.offsetWidth/2-this.wrapper.offsetWidth/2)),!0===o&&(o=Math.round(t.offsetHeight/2-this.wrapper.offsetHeight/2)),n.left-=e||0,n.top-=o||0,n.left=n.left>this.minScrollX?this.minScrollX:n.left<this.maxScrollX?this.maxScrollX:n.left,n.top=n.top>this.minScrollY?this.minScrollY:n.top<this.maxScrollY?this.maxScrollY:n.top,this.options.wheel&&(n.top=Math.round(n.top/this.itemHeight)*this.itemHeight),this.scrollTo(n.left,n.top,i,s)}},L.prototype.resetPosition=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,i=1<arguments.length&&void 0!==arguments[1]?arguments[1]:X.bounce,e=this.x,o=Math.round(e);!this.hasHorizontalScroll||o>this.minScrollX?e=this.minScrollX:o<this.maxScrollX&&(e=this.maxScrollX);var s=this.y,n=Math.round(s);return!this.hasVerticalScroll||n>this.minScrollY?s=this.minScrollY:n<this.maxScrollY&&(s=this.maxScrollY),(e!==this.x||s!==this.y)&&(this.scrollTo(e,s,t,i),!0)},L.prototype.getComputedPosition=function(){var t=window.getComputedStyle(this.scroller,null),i=void 0,e=void 0;return e=this.options.useTransform?(i=+((t=t[b.transform].split(")")[0].split(", "))[12]||t[4]),+(t[13]||t[5])):(i=+t.left.replace(/[^-\d.]/g,""),+t.top.replace(/[^-\d.]/g,"")),{x:i,y:e}},L.prototype.stop=function(){if(this.options.useTransition&&this.isInTransition){this.isInTransition=!1,W(this.probeTimer);var t=this.getComputedPosition();this._translate(t.x,t.y),this.options.wheel?this.target=this.items[Math.round(-t.y/this.itemHeight)]:this.trigger("scrollEnd",{x:this.x,y:this.y}),this.stopFromTransition=!0}else!this.options.useTransition&&this.isAnimating&&(this.isAnimating=!1,W(this.animateTimer),this.trigger("scrollEnd",{x:this.x,y:this.y}),this.stopFromTransition=!0)},L.prototype.destroy=function(){this.destroyed=!0,this.trigger("destroy"),this.options.useTransition?W(this.probeTimer):W(this.animateTimer),this._removeDOMEvents(),this._events={}},(O=C).prototype.on=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:this;this._events[t]||(this._events[t]=[]),this._events[t].push([i,e])},O.prototype.once=function(t,i){var e=2<arguments.length&&void 0!==arguments[2]?arguments[2]:this;function o(){this.off(t,o),i.apply(e,arguments)}o.fn=i,this.on(t,o)},O.prototype.off=function(t,i){var e=this._events[t];if(e)for(var o=e.length;o--;)(e[o][0]===i||e[o][0]&&e[o][0].fn===i)&&s(e,o)},O.prototype.trigger=function(t){var i=this._events[t];if(i)for(var e=i.length,o=[].concat(function(t){if(Array.isArray(t)){for(var i=0,e=Array(t.length);i<t.length;i++)e[i]=t[i];return e}return Array.from(t)}(i)),s=0;s<e;s++){var n=o[s],r=h(n,2),a=r[0],l=r[1];a&&a.apply(l,[].slice.call(arguments,1))}},(P=C).prototype.wheelTo=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0;if(this.options.wheel){var i=-t*this.itemHeight;this.scrollTo(0,i)}},P.prototype.getSelectedIndex=function(){return this.options.wheel&&this.selectedIndex},P.prototype._initWheel=function(){var t=this.options.wheel;t.wheelWrapperClass||(t.wheelWrapperClass="wheel-scroll"),t.wheelItemClass||(t.wheelItemClass="wheel-item"),void 0===t.selectedIndex&&(t.selectedIndex=0,z("wheel option selectedIndex is required!"))},(H=C).prototype._initMouseWheel=function(){var t=this;this._handleMouseWheelEvent(d),this.on("destroy",function(){clearTimeout(t.mouseWheelTimer),clearTimeout(t.mouseWheelEndTimer),t._handleMouseWheelEvent(p)}),this.firstWheelOpreation=!0},H.prototype._handleMouseWheelEvent=function(t){t(this.wrapper,"wheel",this),t(this.wrapper,"mousewheel",this),t(this.wrapper,"DOMMouseScroll",this)},H.prototype._onMouseWheel=function(t){var i=this;if(this.enabled){t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.firstWheelOpreation&&this.trigger("scrollStart"),this.firstWheelOpreation=!1;var e=this.options.mouseWheel,o=e.speed,s=void 0===o?20:o,n=e.invert,r=void 0!==n&&n,a=e.easeTime,l=void 0===a?300:a;clearTimeout(this.mouseWheelTimer),this.mouseWheelTimer=setTimeout(function(){i.options.snap||l||i.trigger("scrollEnd",{x:i.x,y:i.y}),i.firstWheelOpreation=!0},400);var h=void 0,c=void 0;switch(!0){case"deltaX"in t:c=1===t.deltaMode?(h=-t.deltaX*s,-t.deltaY*s):(h=-t.deltaX,-t.deltaY);break;case"wheelDeltaX"in t:h=t.wheelDeltaX/120*s,c=t.wheelDeltaY/120*s;break;case"wheelDelta"in t:h=c=t.wheelDelta/120*s;break;case"detail"in t:h=c=-t.detail/3*s;break;default:return}var d=r?-1:1;h*=d,c*=d,this.hasVerticalScroll||(h=c,c=0);var p=void 0,u=void 0;if(this.options.snap)return p=this.currentPage.pageX,u=this.currentPage.pageY,0<h?p--:h<0&&p++,0<c?u--:c<0&&u++,void this._goToPage(p,u);p=this.x+Math.round(this.hasHorizontalScroll?h:0),u=this.y+Math.round(this.hasVerticalScroll?c:0),this.movingDirectionX=this.directionX=0<h?-1:h<0?1:0,this.movingDirectionY=this.directionY=0<c?-1:c<0?1:0,p>this.minScrollX?p=this.minScrollX:p<this.maxScrollX&&(p=this.maxScrollX),u>this.minScrollY?u=this.minScrollY:u<this.maxScrollY&&(u=this.maxScrollY);var m=this.y===u;this.scrollTo(p,u,l,X.swipe),this.trigger("scroll",{x:this.x,y:this.y}),clearTimeout(this.mouseWheelEndTimer),m&&(this.mouseWheelEndTimer=setTimeout(function(){i.trigger("scrollEnd",{x:i.x,y:i.y})},l))}},C.Version="1.14.1",C}()}(t={exports:{}},t.exports),t.exports),D=function(t,i){return"string"!=typeof t&&t.nodeType?t:i?document.querySelectorAll(t):document.querySelector(t)};function i(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},i=this,e=void 0;if(i.extend(t),t.el){if(!(e=D(t.el))||e.bindRolldate)return;e.bindRolldate=1,i.tap(e,function(){i.show()})}if(t.value){t.el&&("input"==e.nodeName.toLowerCase()?e.value=t.value:e.innerText=t.value);var o=t.value.replace(/-/g,"/").replace(/[^\d/:\s]/g,""),s=new Date(o);s&&"Invalid Date"!=s?t.el?e.bindDate=s:i.bindDate=s:console.error("Invalid Date："+o)}}return i.prototype={constructor:i,baseData:function(){return{domId:{YYYY:"rolldate-year",MM:"rolldate-month",DD:"rolldate-day",hh:"rolldate-hour",mm:"rolldate-min",ss:"rolldate-sec"},opts:{el:"",format:"YYYY-MM-DD",beginYear:2e3,endYear:2100,init:null,moveEnd:null,confirm:null,cancel:null,minStep:1,trigger:"tap",lang:{title:"选择日期",cancel:"取消",confirm:"确认",year:"年",month:"月",day:"日",hour:"时",min:"分",sec:"秒"},monthNames:{month1:null,month2:null,month3:null,month4:null,month5:null,month6:null,month7:null,month8:null,month9:null,month10:null,month11:null,month12:null}}}},extend:function(t){var i=this.baseData().opts;for(var e in i)if(i[e]&&"[object Object]"==Object.prototype.toString.call(i[e]))for(var o in t[e])i[e][o]=null==t[e][o]?i[e][o]:t[e][o];else i[e]=t[e]||i[e];this.config=i},createUI:function(){for(var n=this,t=n.baseData(),r=n.config,a=t.domId,l=r.format.split(/-|\/|\s|:/g),i=l.length,e="",h=r.el?D(r.el).bindDate||new Date:n.bindDate||new Date,c=r.lang,o=r.monthNames,s=0;s<i;s++){var d=l[s],p=0;if(e+='<div id="'+a[d]+'"><ul class="wheel-scroll">',"YYYY"==d)for(var u=r.beginYear;u<=r.endYear;u++)e+='<li class="wheel-item '+(u==h.getFullYear()?"active":"")+'" data-index="'+p+'" data-value="'+u+'">'+u+c.year+"</li>",p++;else if("MM"==d)for(var m=1;m<=12;m++){e+='<li class="wheel-item '+(m==h.getMonth()+1?"active":"")+'" data-index="'+p+'" data-value="'+(m<10?"0"+m:m)+'">'+(null===o["month"+m]?m<10?"0"+m:m:o["month"+m])+c.month+"</li>",p++}else if("DD"==d)for(var f=n.getMonthlyDay(h.getFullYear(),h.getMonth()+1),v=1;v<=f;v++)e+='<li class="wheel-item '+(v==h.getDate()?"active":"")+'" data-index="'+p+'" data-value="'+(v<10?"0"+v:v)+'">'+(v<10?"0"+v:v)+c.day+"</li>",p++;else if("hh"==d)for(var g=0;g<=23;g++)e+='<li class="wheel-item '+(g==h.getHours()?"active":"")+'" data-index="'+p+'" data-value="'+(g<10?"0"+g:g)+'">'+(g<10?"0"+g:g)+c.hour+"</li>",p++;else if("mm"==d)for(var w=0;w<=59;w+=r.minStep)e+='<li class="wheel-item '+(w==h.getMinutes()?"active":"")+'" data-index="'+p+'" data-value="'+(w<10?"0"+w:w)+'">'+(w<10?"0"+w:w)+c.min+"</li>",p++;else if("ss"==d)for(var y=0;y<=59;y++)e+='<li class="wheel-item '+(y==h.getSeconds()?"active":"")+'" data-index="'+p+'" data-value="'+(y<10?"0"+y:y)+'">'+(y<10?"0"+y:y)+c.sec+"</li>",p++;e+="</ul></div>"}var x='<div class="rolldate-mask"></div>\n            <div class="rolldate-panel">\n                <header>\n                    <span class="rolldate-btn rolldate-cancel">'+c.cancel+"</span>\n                    "+c.title+'\n                    <span class="rolldate-btn rolldate-confirm">'+c.confirm+'</span>\n                </header>\n                <section class="rolldate-content">\n                    <div class="rolldate-dim mask-top"></div>\n                    <div class="rolldate-dim mask-bottom"></div>\n                    <div class="rolldate-wrapper">\n                        '+e+"\n                    </div>\n                </section>\n            </div>",b=document.createElement("div");b.className="rolldate-container",b.innerHTML=x,document.body.appendChild(b),n.scroll={};for(var T=function(t){var i=a[l[t]];n.scroll[l[t]]=new Y("#"+i,{wheel:{selectedIndex:0}});var o=n.scroll[l[t]],e=D("#"+i+" .active"),s=e?e.getAttribute("data-index"):Math.round(h.getMinutes()/r.minStep);o.wheelTo(s),o.on("scrollEnd",function(){if(r.moveEnd&&r.moveEnd.call(n,o),-1!=[a.YYYY,a.MM].indexOf(o.wrapper.id)&&n.scroll.YYYY&&n.scroll.MM&&n.scroll.DD){var t=n.getMonthlyDay(n.getSelected(n.scroll.YYYY),n.getSelected(n.scroll.MM)),i="";if(t!=D("#"+a.DD+" li",1).length){for(var e=1;e<=t;e++)i+='<li class="wheel-item">'+(e<10?"0"+e:e)+c.day+"</li>";D("#"+a.DD+" ul").innerHTML=i,n.scroll.DD.refresh()}}})},S=0;S<i;S++)T(S);D(".rolldate-panel").className="rolldate-panel fadeIn"},tap:function(t,e){if("ontouchstart"in window&&"tap"==this.config.trigger){var o={},i=function(t){var i=t.touches[0];o.startX=i.pageX,o.startY=i.pageY,o.sTime=+new Date},s=function(t){var i=t.changedTouches[0];o.endX=i.pageX,o.endY=i.pageY,+new Date-o.sTime<300&&Math.abs(o.endX-o.startX)+Math.abs(o.endY-o.startY)<20&&(t.preventDefault(),e.call(this,t)),o={}};"function"==typeof e?(t.addEventListener("touchstart",i),t.addEventListener("touchend",s)):(t.removeEventListener("touchstart",i),t.removeEventListener("touchend",s))}else{var n=function(t){e.call(this,t)};"function"==typeof e?t.addEventListener("click",n):t.removeEventListener("click",n)}},show:function(){var t=this.config,i=void 0;if(t.el){if(!(i=D(t.el)).bindRolldate)return;"input"==i.nodeName.toLowerCase()&&i.blur()}D(".rolldate-container")||t.init&&!1===t.init.call(this)||(this.createUI(),this.event())},hide:function(t){var i=D(".rolldate-panel.fadeIn");i&&(i.className="rolldate-panel fadeOut",this.destroy(t))},event:function(){var a=this,t=D(".rolldate-mask"),i=D(".rolldate-cancel"),e=D(".rolldate-confirm");a.tap(t,function(){a.hide(1)}),a.tap(i,function(){a.hide(1)}),a.tap(e,function(){var t=a.config,i=void 0,e=t.format,o=new Date;for(var s in a.scroll){var n=a.getSelected(a.scroll[s]);e=e.replace(s,n),"YYYY"==s?o.setFullYear(n):"MM"==s?o.setMonth(n-1):"DD"==s?o.setDate(n):"hh"==s?o.setHours(n):"mm"==s?o.setMinutes(n):"ss"==s&&o.setSeconds(n)}if(t.confirm){var r=t.confirm.call(a,e);if(!1===r)return!1;r&&(e=r)}t.el?("input"==(i=D(t.el)).nodeName.toLowerCase()?i.value=e:i.innerText=e,i.bindDate=o):a.bindDate=o,a.hide()})},getMonthlyDay:function(t,i){var e=void 0;return 1==i||3==i||5==i||7==i||8==i||10==i||12==i?e=31:4==i||6==i||11==i||9==i?e=30:2==i&&(e=t%4!=0||t%100==0&&t%400!=0?28:29),e},destroy:function(t){var i=this,e=i.config;for(var o in i.scroll)i.scroll[o].destroy();t&&e.cancel&&e.cancel.call(i),i.tap(D(".rolldate-mask"),0),i.tap(D(".rolldate-cancel"),0),i.tap(D(".rolldate-confirm"),0),setTimeout(function(){var t=D(".rolldate-container");t&&document.body.removeChild(t),t=null},300)},getSelected:function(t){return D("#"+t.wrapper.id+" li",1)[t.getSelectedIndex()].getAttribute("data-value")}},i.version="3.1.3",i});
diff --git a/src/index.html b/src/index.html
index 1034e65..cfe8020 100644
--- a/src/index.html
+++ b/src/index.html
@@ -138,6 +138,12 @@ <h4><strong>自定义语言</strong></h4>
 					<input readonly class="form-control" type="text" id="date-group3-1" placeholder="lang">
 				</div>
 			</div>
+			<h5 class="col-xs-12">custom month names (english)</h5>
+			<div class="form-group clearfix">
+				<div class="col-xs-6">
+					<input readonly class="form-control" type="text" id="date-group3-2" placeholder="custom month names">
+				</div>
+			</div>
 		</div>
 
 		<h4><strong>设置默认日期</strong></h4>
@@ -327,6 +333,36 @@ <h4><strong>其他示例</strong></h4>
 				lang: lang
 			})
 
+			// Custom month names
+			new Rolldate({
+				el: '#date-group3-2',
+				format: 'MM-DD-YYYY',
+				beginYear: 2000,
+				endYear: 2100,
+				lang: {
+					title: 'Select a date',
+					cancel: 'Cancel',
+					confirm: 'Confirm',
+					day: '',
+					month: '',
+					year: '',
+				},
+				monthNames: {
+					month1: 'Jan',
+					month2: 'Feb',
+					month3: 'Mar',
+					month4: 'Apr',
+					month5: 'May',
+					month6: 'Jun',
+					month7: 'Jul',
+					month8: 'Aug',
+					month9: 'Sep',
+					month10: 'Oct',
+					month11: 'Nov',
+					month12: 'Dec',
+				}
+			})
+
 			// 设置默认日期 内部使用document.getElementById('date').bindDate = new Date('2019/05/13');
 			new Rolldate({
 				el: '#date-group4-1',
diff --git a/src/index.js b/src/index.js
index f1123ad..13ffa78 100644
--- a/src/index.js
+++ b/src/index.js
@@ -72,7 +72,21 @@ Rolldate.prototype = {
         cancel:null,
         minStep:1,
         trigger:'tap',
-        lang:{title:'选择日期', cancel:'取消', confirm:'确认', year:'年', month:'月', day:'日', hour:'时', min:'分', sec:'秒'}
+        lang:{title:'选择日期', cancel:'取消', confirm:'确认', year:'年', month:'月', day:'日', hour:'时', min:'分', sec:'秒'},
+        monthNames: {
+          month1: null,
+          month2: null,
+          month3: null,
+          month4: null,
+          month5: null,
+          month6: null,
+          month7: null,
+          month8: null,
+          month9: null,
+          month10: null,
+          month11: null,
+          month12: null,
+        }
       }
     };
   },
@@ -101,7 +115,8 @@ Rolldate.prototype = {
       ul = '',
       date = config.el? ($(config.el).bindDate || new Date()) : (_this.bindDate || new Date()),
       itemClass = '',
-      lang = config.lang;
+      lang = config.lang,
+      monthNames = config.monthNames;
 
     for(let i=0; i<len; i++){
       let f = FormatArr[i],
@@ -113,14 +128,16 @@ Rolldate.prototype = {
         for(let j=config.beginYear; j<=config.endYear; j++){
           itemClass = j == date.getFullYear()? 'active':'';
 
-          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}">${j}${lang.year}</li>`;
+          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}" data-value="${j}">${j}${lang.year}</li>`;
           domMndex ++;
         }
       }else if(f == 'MM'){
         for(let k=1; k<=12; k++){
           itemClass = k == date.getMonth() + 1? 'active':'';
 
-          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}">${k<10? '0'+k : k}${lang.month}</li>`;
+          const month = monthNames['month'+k] === null ? k<10? '0'+k : k: monthNames['month'+k];
+
+          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}" data-value="${k<10? '0'+k : k}">${month}${lang.month}</li>`;
           domMndex ++;
         }
       }else if(f == 'DD'){
@@ -128,28 +145,28 @@ Rolldate.prototype = {
         for(let l=1; l<=day; l++){
           itemClass = l == date.getDate()? 'active':'';
 
-          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}">${l<10? '0'+l : l}${lang.day}</li>`;
+          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}" data-value="${l<10? '0'+l : l}">${l<10? '0'+l : l}${lang.day}</li>`;
           domMndex ++;
         }
       }else if(f == 'hh'){
         for(let m=0; m<=23; m++){
           itemClass = m == date.getHours()? 'active':'';
 
-          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}">${m<10? '0'+m : m}${lang.hour}</li>`;
+          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}" data-value="${m<10? '0'+m : m}">${m<10? '0'+m : m}${lang.hour}</li>`;
           domMndex ++;
         }
       }else if(f == 'mm'){
         for(let n=0; n<=59; n+=config.minStep){
           itemClass = n == date.getMinutes()? 'active':'';
 
-          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}">${n<10? '0'+n : n}${lang.min}</li>`;
+          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}" data-value="${n<10? '0'+n : n}">${n<10? '0'+n : n}${lang.min}</li>`;
           domMndex ++;
         }
       }else if(f == 'ss'){
         for(let o=0; o<=59; o++){
           itemClass = o == date.getSeconds()? 'active':'';
 
-          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}">${o<10? '0'+o : o}${lang.sec}</li>`;
+          ul += `<li class="wheel-item ${itemClass}" data-index="${domMndex}" data-value="${o<10? '0'+o : o}">${o<10? '0'+o : o}${lang.sec}</li>`;
           domMndex ++;
         }
       }
@@ -190,7 +207,7 @@ Rolldate.prototype = {
       let that = _this.scroll[FormatArr[i]],
         active = $(`#${$id} .active`),
         index = active? active.getAttribute('data-index') : Math.round(date.getMinutes()/config.minStep);
- 
+
       that.wheelTo(index);
       // 滚动结束
       that.on('scrollEnd', () => {
@@ -218,19 +235,19 @@ Rolldate.prototype = {
   tap:function (el, fn) {
     let _this = this,
       hasTouch = "ontouchstart" in window;
-    
+
     if(hasTouch && _this.config.trigger == 'tap'){
       let o = {},
         touchstart = function(e) {
           let t = e.touches[0];
-    
+
           o.startX = t.pageX;
           o.startY = t.pageY;
           o.sTime = + new Date;
         },
         touchend = function(e) {
           let t = e.changedTouches[0];
-    
+
           o.endX = t.pageX;
           o.endY = t.pageY;
           if((+ new Date) - o.sTime < 300){
@@ -384,7 +401,7 @@ Rolldate.prototype = {
     }, 300);
   },
   getSelected: function(scroll){
-    return $('#'+scroll.wrapper.id+' li', 1)[scroll.getSelectedIndex()].innerText.replace(/\D/g, '');
+    return $('#'+scroll.wrapper.id+' li', 1)[scroll.getSelectedIndex()].getAttribute('data-value');
   }
 }
 Rolldate.version = version;