1：对js文件的引用
<script src="Calendar.js" type="text/javascript"></script>
Code
1 <!--
2 var cal;
3 var isFocus=false; //是否为焦点
4 //function SelectDate(obj,strFormat) //两个参数改为只传一个
5 function SelectDate(obj)
6 {
7 var date = new Date();
8 var by = date.getFullYear()-10; //最小值 → 10 年前
9 var ey = date.getFullYear()+10; //最大值 → 10 年后
10 cal = (cal==null) ? new Calendar(by, ey, 0) : cal; //初始化为中文版，1为英文版
11 //cal.dateFormatStyle = strFormat; // 默认显示格式为:yyyy-MM-dd ,还可显示 yyyy/MM/dd
12 cal.show(obj);
13 }
14 /**//* 返回日期 */
15 String.prototype.toDate = function(style){
16 var y = this.substring(style.indexOf('y'),style.lastIndexOf('y')+1);//年
17 var m = this.substring(style.indexOf('M'),style.lastIndexOf('M')+1);//月
18 var d = this.substring(style.indexOf('d'),style.lastIndexOf('d')+1);//日
19 if(isNaN(y)) y = new Date().getFullYear();
20 if(isNaN(m)) m = new Date().getMonth();
21 if(isNaN(d)) d = new Date().getDate();
22 var dt ;
23 eval ("dt = new Date('"+ y+"', '"+(m-1)+"','"+ d +"')");
24 return dt;
25 }
26 /**//* 格式化日期 */
27 Date.prototype.format = function(style){
28 var o = {
29 "M+" : this.getMonth() + 1, //month
30 "d+" : this.getDate(), //day
31 "h+" : this.getHours(), //hour
32 "m+" : this.getMinutes(), //minute
33 "s+" : this.getSeconds(), //second
34 "w+" : "天一二三四五六".charAt(this.getDay()), //week
35 "q+" : Math.floor((this.getMonth() + 3) / 3), //quarter
36 "S" : this.getMilliseconds() //millisecond
37 }
38 if(/(y+)/.test(style)){
39 style = style.replace(RegExp.$1,
40 (this.getFullYear() + "").substr(4 - RegExp.$1.length));
41 }
42 for(var k in o){
43 if(new RegExp("("+ k +")").test(style)){
44 style = style.replace(RegExp.$1,
45 RegExp.$1.length == 1 ? o[k] :
46 ("00" + o[k]).substr(("" + o[k]).length));
47 }
48 }
49 return style;
50 };
51
52 /**//*
53 * 日历类
54 * @param beginYear 1990
55 * @param endYear 2010
56 * @param lang 0(中文)|1(英语) 可自由扩充
57 * @param dateFormatStyle "yyyy-MM-dd";
58 */
59 function Calendar(beginYear, endYear, lang, dateFormatStyle){
60 this.beginYear = 1990;
61 this.endYear = 2010;
62 this.lang = 0; //0(中文) | 1(英文)
63 this.dateFormatStyle = "yyyy-MM-dd";
64
65 if (beginYear != null && endYear != null){
66 this.beginYear = beginYear;
67 this.endYear = endYear;
68 }
69 if (lang != null){
70 this.lang = lang
71 }
72
73 if (dateFormatStyle != null){
74 this.dateFormatStyle = dateFormatStyle
75 }
76
77 this.dateControl = null;
78 this.panel = this.getElementById("calendarPanel");
79 this.container = this.getElementById("ContainerPanel");
80 this.form = null;
81
82 this.date = new Date();
83 this.year = this.date.getFullYear();
84 this.month = this.date.getMonth();
85
86
87 this.colors = {
88 "cur_word" : "#FFFFFF", //当日日期文字颜色
89 "cur_bg" : "#83A6F4", //当日日期单元格背影色
90 "sel_bg" : "#FFCCCC", //已被选择的日期单元格背影色
91 "sun_word" : "#FF0000", //星期天文字颜色
92 "sat_word" : "#0000FF", //星期六文字颜色
93 "td_word_light" : "#333333", //单元格文字颜色
94 "td_word_dark" : "#CCCCCC", //单元格文字暗色
95 "td_bg_out" : "#EFEFEF", //单元格背影色
96 "td_bg_over" : "#FFCC00", //单元格背影色
97 "tr_word" : "#FFFFFF", //日历头文字颜色
98 "tr_bg" : "#666666", //日历头背影色
99 "input_border" : "#CCCCCC", //input控件的边框颜色
100 "input_bg" : "#EFEFEF" //input控件的背影色
101 }
102
103 this.draw();
104 this.bindYear();
105 this.bindMonth();
106 this.changeSelect();
107 this.bindData();
108 }
109
110 /**//*
111 * 日历类属性（语言包，可自由扩展）
112 */
113 Calendar.language ={
114 "year" : [[""], [""]],
115 "months" : [["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"],
116 ["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"]
117 ],
118 "weeks" : [["日","一","二","三","四","五","六"],
119 ["SUN","MON","TUR","WED","THU","FRI","SAT"]
120 ],
121 "clear" : [["清空"], ["CLS"]],
122 "today" : [["今天"], ["TODAY"]],
123 "close" : [["关闭"], ["CLOSE"]]
124 }
125
126 Calendar.prototype.draw = function(){
127 calendar = this;
128
129 var mvAry = [];
130 mvAry[mvAry.length] = ' <div name="calendarForm" style="margin: 0px;">';
131 mvAry[mvAry.length] = ' <table width="100%" border="0" cellpadding="0" cellspacing="1">';
132 mvAry[mvAry.length] = ' <tr>';
133 mvAry[mvAry.length] = ' <th align="left" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="prevMonth" type="button" id="prevMonth" value="<" /></th>';
134 mvAry[mvAry.length] = ' <th align="center" width="98%" nowrap="nowrap"><select name="calendarYear" id="calendarYear" style="font-size:12px;"></select><select name="calendarMonth" id="calendarMonth" style="font-size:12px;"></select></th>';
135 mvAry[mvAry.length] = ' <th align="right" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="nextMonth" type="button" id="nextMonth" value=">" /></th>';
136 mvAry[mvAry.length] = ' </tr>';
137 mvAry[mvAry.length] = ' </table>';
138 mvAry[mvAry.length] = ' <table id="calendarTable" width="100%" style="border:0px solid #CCCCCC;background-color:#FFFFFF" border="0" cellpadding="3" cellspacing="1">';
139 mvAry[mvAry.length] = ' <tr>';
140 for(var i = 0; i < 7; i++){
141 mvAry[mvAry.length] = ' <th style="font-weight:normal;background-color:' + calendar.colors["tr_bg"] + ';color:' + calendar.colors["tr_word"] + ';">' + Calendar.language["weeks"][this.lang][i] + '</th>';
142 }
143 mvAry[mvAry.length] = ' </tr>';
144 for(var i = 0; i < 6;i++){
145 mvAry[mvAry.length] = ' <tr align="center">';
146 for(var j = 0; j < 7; j++){
147 if (j == 0){
148 mvAry[mvAry.length] = ' <td style="cursor:default;color:' + calendar.colors["sun_word"] + ';"></td>';
149 } else if(j == 6){
150 mvAry[mvAry.length] = ' <td style="cursor:default;color:' + calendar.colors["sat_word"] + ';"></td>';
151 } else{
152 mvAry[mvAry.length] = ' <td style="cursor:default;"></td>';
153 }
154 }
155 mvAry[mvAry.length] = ' </tr>';
156 }
157 mvAry[mvAry.length] = ' <tr style="background-color:' + calendar.colors["input_bg"] + ';">';
158 mvAry[mvAry.length] = ' <th colspan="2"><input name="calendarClear" type="button" id="calendarClear" value="' + Calendar.language["clear"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>';
159 mvAry[mvAry.length] = ' <th colspan="3"><input name="calendarToday" type="button" id="calendarToday" value="' + Calendar.language["today"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>';
160 mvAry[mvAry.length] = ' <th colspan="2"><input name="calendarClose" type="button" id="calendarClose" value="' + Calendar.language["close"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>';
161 mvAry[mvAry.length] = ' </tr>';
162 mvAry[mvAry.length] = ' </table>';
163 mvAry[mvAry.length] = ' </div>';
164 this.panel.innerHTML = mvAry.join("");
165
166 var obj = this.getElementById("prevMonth");
167 obj.onclick = function (){calendar.goPrevMonth(calendar);}
168 obj.onblur = function (){calendar.onblur();}
169 this.prevMonth= obj;
170
171 obj = this.getElementById("nextMonth");
172 obj.onclick = function (){calendar.goNextMonth(calendar);}
173 obj.onblur = function (){calendar.onblur();}
174 this.nextMonth= obj;
175
176
177 obj = this.getElementById("calendarClear");
178 obj.onclick = function (){calendar.dateControl.value = "";calendar.hide();}
179 this.calendarClear = obj;
180
181 obj = this.getElementById("calendarClose");
182 obj.onclick = function (){calendar.hide();}
183 this.calendarClose = obj;
184
185 obj = this.getElementById("calendarYear");
186 obj.onchange = function (){calendar.update(calendar);}
187 obj.onblur = function (){calendar.onblur();}
188 this.calendarYear = obj;
189
190 obj = this.getElementById("calendarMonth");
191 with(obj)
192 {
193 onchange = function (){calendar.update(calendar);}
194 onblur = function (){calendar.onblur();}
195 }this.calendarMonth = obj;
196
197 obj = this.getElementById("calendarToday");
198 obj.onclick = function (){
199 var today = new Date();
200 calendar.date = today;
201 calendar.year = today.getFullYear();
202 calendar.month = today.getMonth();
203 calendar.changeSelect();
204 calendar.bindData();
205 calendar.dateControl.value = today.format(calendar.dateFormatStyle);
206 calendar.hide();
207 }
208 this.calendarToday = obj;
209 }
210
211 //年份下拉框绑定数据
212 Calendar.prototype.bindYear = function(){
213 var cy = this.calendarYear;
214 cy.length = 0;
215 for (var i = this.beginYear; i <= this.endYear; i++){
216 cy.options[cy.length] = new Option(i + Calendar.language["year"][this.lang], i);
217 }
218 }
219
220 //月份下拉框绑定数据
221 Calendar.prototype.bindMonth = function(){
222 var cm = this.calendarMonth;
223 cm.length = 0;
224 for (var i = 0; i < 12; i++){
225 cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i);
226 }
227 }
228
229 //向前一月
230 Calendar.prototype.goPrevMonth = function(e){
231 if (this.year == this.beginYear && this.month == 0){return;}
232 this.month--;
233 if (this.month == -1){
234 this.year--;
235 this.month = 11;
236 }
237 this.date = new Date(this.year, this.month, 1);
238 this.changeSelect();
239 this.bindData();
240 }
241
242 //向后一月
243 Calendar.prototype.goNextMonth = function(e){
244 if (this.year == this.endYear && this.month == 11){return;}
245 this.month++;
246 if (this.month == 12){
247 this.year++;
248 this.month = 0;
249 }
250 this.date = new Date(this.year, this.month, 1);
251 this.changeSelect();
252 this.bindData();
253 }
254
255 //改变SELECT选中状态
256 Calendar.prototype.changeSelect = function(){
257 var cy = this.calendarYear;
258 var cm = this.calendarMonth;
259 for (var i= 0; i < cy.length; i++){
260 if (cy.options[i].value == this.date.getFullYear()){
261 cy[i].selected = true;
262 break;
263 }
264 }
265 for (var i= 0; i < cm.length; i++){
266 if (cm.options[i].value == this.date.getMonth()){
267 cm[i].selected = true;
268 break;
269 }
270 }
271 }
272
273 //更新年、月
274 Calendar.prototype.update = function (e){
275 this.year = e.calendarYear.options[e.calendarYear.selectedIndex].value;
276 this.month = e.calendarMonth.options[e.calendarMonth.selectedIndex].value;
277 this.date = new Date(this.year, this.month, 1);
278 this.changeSelect();
279 this.bindData();
280 }
281
282 //绑定数据到月视图
283 Calendar.prototype.bindData = function (){
284 var calendar = this;
285 var dateArray = this.getMonthViewArray(this.date.getFullYear(), this.date.getMonth());
286 var tds = this.getElementById("calendarTable").getElementsByTagName("td");
287 for(var i = 0; i < tds.length; i++){
288 tds[i].style.backgroundColor = calendar.colors["td_bg_out"];
289 tds[i].onclick = function () {return;}
290 tds[i].onmouseover = function () {return;}
291 tds[i].onmouseout = function () {return;}
292 if (i > dateArray.length - 1) break;
293 tds[i].innerHTML = dateArray[i];
294 if (dateArray[i] != " "){
295 tds[i].onclick = function () {
296 if (calendar.dateControl != null){
297 calendar.dateControl.value = new Date(calendar.date.getFullYear(),
298 calendar.date.getMonth(),
299 this.innerHTML).format(calendar.dateFormatStyle);
300 }
301 calendar.hide();
302 }
303 tds[i].onmouseover = function () {
304 this.style.backgroundColor = calendar.colors["td_bg_over"];
305 }
306 tds[i].onmouseout = function () {
307 this.style.backgroundColor = calendar.colors["td_bg_out"];
308 }
309 if (new Date().format(calendar.dateFormatStyle) ==
310 new Date(calendar.date.getFullYear(),
311 calendar.date.getMonth(),
312 dateArray[i]).format(calendar.dateFormatStyle)) {
313 tds[i].style.backgroundColor = calendar.colors["cur_bg"];
314 tds[i].onmouseover = function () {
315 this.style.backgroundColor = calendar.colors["td_bg_over"];
316 }
317 tds[i].onmouseout = function () {
318 this.style.backgroundColor = calendar.colors["cur_bg"];
319 }
320 }//end if
321
322 //设置已被选择的日期单元格背影色
323 if (calendar.dateControl != null && calendar.dateControl.value == new Date(calendar.date.getFullYear(),
324 calendar.date.getMonth(),
325 dateArray[i]).format(calendar.dateFormatStyle)) {
326 tds[i].style.backgroundColor = calendar.colors["sel_bg"];
327 tds[i].onmouseover = function () {
328 this.style.backgroundColor = calendar.colors["td_bg_over"];
329 }
330 tds[i].onmouseout = function () {
331 this.style.backgroundColor = calendar.colors["sel_bg"];
332 }
333 }
334 }
335 }
336 }
337
338 //根据年、月得到月视图数据(数组形式)
339 Calendar.prototype.getMonthViewArray = function (y, m) {
340 var mvArray = [];
341 var dayOfFirstDay = new Date(y, m, 1).getDay();
342 var daysOfMonth = new Date(y, m + 1, 0).getDate();
343 for (var i = 0; i < 42; i++) {
344 mvArray[i] = " ";
345 }
346 for (var i = 0; i < daysOfMonth; i++){
347 mvArray[i + dayOfFirstDay] = i + 1;
348 }
349 return mvArray;
350 }
351
352 //扩展 document.getElementById(id) 多浏览器兼容性 from meizz tree source
353 Calendar.prototype.getElementById = function(id){
354 if (typeof(id) != "string" || id == "") return null;
355 if (document.getElementById) return document.getElementById(id);
356 if (document.all) return document.all(id);
357 try {return eval(id);} catch(e){ return null;}
358 }
359
360 //扩展 object.getElementsByTagName(tagName)
361 Calendar.prototype.getElementsByTagName = function(object, tagName){
362 if (document.getElementsByTagName) return document.getElementsByTagName(tagName);
363 if (document.all) return document.all.tags(tagName);
364 }
365
366 //取得HTML控件绝对位置
367 Calendar.prototype.getAbsPoint = function (e){
368 var x = e.offsetLeft;
369 var y = e.offsetTop;
370 while(e = e.offsetParent){
371 x += e.offsetLeft;
372 y += e.offsetTop;
373 }
374 return {"x": x, "y": y};
375 }
376
377 //显示日历
378 Calendar.prototype.show = function (dateObj, popControl) {
379 if (dateObj == null){
380 throw new Error("arguments[0] is necessary")
381 }
382 this.dateControl = dateObj;
383
384 this.date = (dateObj.value.length > 0) ? new Date(dateObj.value.toDate(this.dateFormatStyle)) : new Date() ;//若为空则显示当前月份
385 this.year = this.date.getFullYear();
386 this.month = this.date.getMonth();
387 this.changeSelect();
388 this.bindData();
389 if (popControl == null){
390 popControl = dateObj;
391 }
392 var xy = this.getAbsPoint(popControl);
393 this.panel.style.left = xy.x -25 + "px";
394 this.panel.style.top = (xy.y + dateObj.offsetHeight) + "px";
395
396 this.panel.style.display = "";
397 this.container.style.display = "";
398
399 dateObj.onblur = function(){calendar.onblur();}
400 this.container.onmouseover = function(){isFocus=true;}
401 this.container.onmouseout = function(){isFocus=false;}
402 }
403
404 //隐藏日历
405 Calendar.prototype.hide = function() {
406 this.panel.style.display = "none";
407 this.container.style.display = "none";
408 isFocus=false;
409 }
410
411 //焦点转移时隐藏日历
412 Calendar.prototype.onblur = function() {
413 if(!isFocus){this.hide();}
414 }
415 document.write('<div id="ContainerPanel" style="display:none;"><div id="calendarPanel" style="position: absolute;display: none;z-index: 9999;');
416 document.write('background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;margin-left:25px;"></div>');
417 if(document.all)
418 {
419 document.write('<iframe style="position:absolute;z-index:2000;width:expression(this.previousSibling.offsetWidth);');
420 document.write('height:expression(this.previousSibling.offsetHeight);');
421 document.write('left:expression(this.previousSibling.offsetLeft);top:expression(this.previousSibling.offsetTop);');
422 document.write('display:expression(this.previousSibling.style.display);" scrolling="no" frameborder="no"></iframe>');
423 }
424 document.write('</div>');
425 //-->
426 2：换成web控件也可以
<input name="txtDate" type="text" style="padding-left:5px;" size="10" id="txtDate" onclick="SelectDate(this)" readonly="readonly" />
Tag标签: 日历控件
