我之前也写过，看下截图哈，也很酷的，windows风格哦。
但是也有些问题，第一画日历有点慢，第二兼容性不太好IE Only，第三它不是基于jQuery的哈哈。
那还是老规矩，做之前先看下效果
这下是更酷的Ext风格了。
从上图我们可以看出这个控件其实有两个视图一个日期月视图，还有一个是年月选择视图。
1：还是先从HTML入手
日期控件确定HTML其实还是比较简单，因为明摆着是列表的数据格式，当然主要是采用table了。
两个视图分别用两个Div包裹，控制div的显示隐藏即可以切换视图了。完整的HTMl结构大家可以用IEDeveloper看一下Demo的结构，我自己截了一个图
2：根据HTML和效果图编写CSS
其实因为是Ext风格的，所以直接copy的ext的css和图片。。
CSS也就不分析了，直接上代码。
因为博客园的语法高亮不支持CSS，所以就不贴出来了，给个下载地址吧：
http://xuanye.cloudapp.net/Theme/Default/dp.css
所有用到的图片：
3：搞定了CSS之后呢，就开始编写我们javascript了。
上来就是一个完整代码
001.;(function($) {
002. var userAgent = window.navigator.userAgent.toLowerCase();
003. $.browser.msie8 = $.browser.msie && /msie 8\.0/i.test(userAgent);
004. $.browser.msie7 = $.browser.msie && /msie 7\.0/i.test(userAgent);
005. $.browser.msie6 = !$.browser.msie8 && !$.browser.msie7 && $.browser.msie && /msie 6\.0/i.test(userAgent);
006.
007. Date.prototype.Format = function(format) {
008. var o = {
009. "M+": this.getMonth() + 1,
010. "d+": this.getDate(),
011. "h+": this.getHours(),
012. "H+": this.getHours(),
013. "m+": this.getMinutes(),
014. "s+": this.getSeconds(),
015. "q+": Math.floor((this.getMonth() + 3) / 3),
016. "w": "0123456".indexOf(this.getDay()),
017. "S": this.getMilliseconds()
018. };
019. if (/(y+)/.test(format)) {
020. format = format.replace(RegExp.{GetProperty(Content)}, (this.getFullYear() + "").substr(4 - RegExp.{GetProperty(Content)}.length));
021. }
022. for (var k in o) {
023. if (new RegExp("(" + k + ")").test(format))
024. format = format.replace(RegExp.{GetProperty(Content)},
025. RegExp.{GetProperty(Content)}.length == 1 ? o[k] :
026. ("00" + o[k]).substr(("" + o[k]).length));
027. }
028. return format;
029. };
030. function DateAdd(interval, number, idate) {
031. number = parseInt(number);
032. var date;
033. if (typeof (idate) == "string") {
034. date = idate.split(/\D/);
035. eval("var date = new Date(" + date.join(",") + ")");
036. }
037.
038. if (typeof (idate) == "object") {
039. date = new Date(idate.toString());
040. }
041. switch (interval) {
042. case "y": date.setFullYear(date.getFullYear() + number); break;
043. case "m": date.setMonth(date.getMonth() + number); break;
044. case "d": date.setDate(date.getDate() + number); break;
045. case "w": date.setDate(date.getDate() + 7 * number); break;
046. case "h": date.setHours(date.getHours() + number); break;
047. case "n": date.setMinutes(date.getMinutes() + number); break;
048. case "s": date.setSeconds(date.getSeconds() + number); break;
049. case "l": date.setMilliseconds(date.getMilliseconds() + number); break;
050. }
051. return date;
052. };
053. $.fn.datepicker = function(o) {
054. var def = {
055. weekStart: 0,
056. weekName: ["日", "一", "二", "三", "四", "五", "六"], //星期的格式
057. monthName: ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"], //月份的格式
058. monthp: "月",
059. Year: new Date().getFullYear(), //定义年的变量的初始值
060. Month: new Date().getMonth() + 1, //定义月的变量的初始值
061. Day: new Date().getDate(), //定义日的变量的初始值
062. today: new Date(),
063. btnOk: " 确定 ",
064. btnCancel: " 取消 ",
065. btnToday: "今天",
066. inputDate: null,
067. onReturn: false,
068. version: "1.1",
069. applyrule: false, //function(){};return rule={startdate,endate};
070. showtarget: null,
071. picker: ""
072. };
073. $.extend(def, o);
074. var cp = $("#BBIT_DP_CONTAINER");
075. if (cp.length == 0) {
076. var cpHA = [];
077. cpHA.push("<div id='BBIT_DP_CONTAINER' class='bbit-dp' style='width:175px;z-index:999;'>");
078. if ($.browser.msie6) {
079. cpHA.push('<iframe style="position:absolute;z-index:-1;width:100%;height:100%;top:0;left:0;scrolling:no;" frameborder="0" src="about:blank"></iframe>');
080. }
081. cpHA.push("<table class='dp-maintable' cellspacing='0' cellpadding='0' style='width:175px;'><tbody><tr><td>");
082. //头哟
083. cpHA.push("<table class='bbit-dp-top' cellspacing='0'><tr><td class='bbit-dp-top-left'> <a id='BBIT_DP_LEFTBTN' href='javascript:void(0);' title='向前一个月'> </a></td><td class='bbit-dp-top-center' align='center'><em><button id='BBIT_DP_YMBTN'>九月 2009</button></em></td><td class='bbit-dp-top-right'><a id='BBIT_DP_RIGHTBTN' href='javascript:void(0);' title='向后一个月'> </a></td></tr></table& gt;");
084. cpHA.push("</td></tr>");
085. cpHA.push("<tr><td>");
086. //周
087. cpHA.push("<table id='BBIT_DP_INNER' class='bbit-dp-inner' cellspacing='0'><thead><tr>");
088. //生成周
089. for (var i = def.weekStart, j = 0; j < 7; j++) {
090. cpHA.push("<th><span>", def.weekName[i], "</span></th>");
091. if (i == 6) { i = 0; } else { i++; }
092. }
093. cpHA.push("</tr></thead>");
094. //生成tBody,需要重新生成的
095. cpHA.push("<tbody></tbody></table>");
096. //生成tBody结束
097. cpHA.push("</td></tr>");
098. cpHA.push("<tr><td class='bbit-dp-bottom' align='center'><button id='BBIT-DP-TODAY'>", def.btnToday, "</button></td></tr>");
099. cpHA.push("</tbody></table>");
100. //输出下来框
101. cpHA.push("<div id='BBIT-DP-MP' class='bbit-dp-mp' style='z-index:auto;'><table id='BBIT-DP-T' style='width: 175px; height: 193px' border='0' cellspacing='0'><tbody>");
102. cpHA.push("<tr>");
103. //1月，7月 按钮两个
104. cpHA.push("<td class='bbit-dp-mp-month' xmonth='0'><a href='javascript:void(0);'>", def.monthName[0], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='6'><a href='javascript:void(0);'>", def.monthName[6], "</a></td><td class='bbit-dp-mp-ybtn' align='middle'><a id='BBIT-DP-MP-PREV' class='bbit-dp-mp-prev'></a></td><td class='bbit-dp-mp-ybtn' align='middle'><a id='BBIT-DP-MP-NEXT' class='bbit-dp-mp-next'></a></td>");
105. cpHA.push("</tr>");
106. cpHA.push("<tr>");
107. cpHA.push("<td class='bbit-dp-mp-month' xmonth='1'><a href='javascript:void(0);'>", def.monthName[1], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='7'><a href='javascript:void(0);'>", def.monthName[7], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
108. cpHA.push("</tr>");
109. cpHA.push("<tr>");
110. cpHA.push("<td class='bbit-dp-mp-month' xmonth='2'><a href='javascript:void(0);'>", def.monthName[2], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='8'><a href='javascript:void(0);'>", def.monthName[8], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
111. cpHA.push("</tr>");
112. cpHA.push("<tr>");
113. cpHA.push("<td class='bbit-dp-mp-month' xmonth='3'><a href='javascript:void(0);'>", def.monthName[3], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='9'><a href='javascript:void(0);'>", def.monthName[9], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
114. cpHA.push("</tr>");
115.
116. cpHA.push("<tr>");
117. cpHA.push("<td class='bbit-dp-mp-month' xmonth='4'><a href='javascript:void(0);'>", def.monthName[4], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='10'><a href='javascript:void(0);'>", def.monthName[10], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
118. cpHA.push("</tr>");
119.
120. cpHA.push("<tr>");
121. cpHA.push("<td class='bbit-dp-mp-month' xmonth='5'><a href='javascript:void(0);'>", def.monthName[5], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='11'><a href='javascript:void(0);'>", def.monthName[11], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
122. cpHA.push("</tr>");
123. cpHA.push("<tr class='bbit-dp-mp-btns'>");
124. cpHA.push("<td colspan='4'><button id='BBIT-DP-MP-OKBTN' class='bbit-dp-mp-ok'>", def.btnOk, "</button><button id='BBIT-DP-MP-CANCELBTN' class='bbit-dp-mp-cancel'>", def.btnCancel, "</button></td>");
125. cpHA.push("</tr>");
126.
127. cpHA.push("</tbody></table>");
128. cpHA.push("</div>");
129. cpHA.push("</div>");
130.
131. var s = cpHA.join("");
132. $(document.body).append(s);
133. var cp = $("#BBIT_DP_CONTAINER");
134.
135. initevents();
136. }
137. function initevents() {
138. //1 today btn;
139. $("#BBIT-DP-TODAY").click(returntoday);
140. cp.click(returnfalse);
141. $("#BBIT_DP_INNER tbody").click(tbhandler);
142. $("#BBIT_DP_LEFTBTN").click(prevm);
143. $("#BBIT_DP_RIGHTBTN").click(nextm);
144. $("#BBIT_DP_YMBTN").click(showym);
145. $("#BBIT-DP-MP").click(mpclick);
146. $("#BBIT-DP-MP-PREV").click(mpprevy);
147. $("#BBIT-DP-MP-NEXT").click(mpnexty);
148. $("#BBIT-DP-MP-OKBTN").click(mpok);
149. $("#BBIT-DP-MP-CANCELBTN").click(mpcancel);
150. }
151. function mpcancel() {
152. $("#BBIT-DP-MP").animate({ top: -193 }, { duration: 200, complete: function() { $("#BBIT-DP-MP").hide(); } });
153. return false;
154. }
155. function mpok() {
156. def.Year = def.cy;
157. def.Month = def.cm + 1;
158. def.Day = 1;
159. $("#BBIT-DP-MP").animate({ top: -193 }, { duration: 200, complete: function() { $("#BBIT-DP-MP").hide(); } });
160. writecb();
161. return false;
162. }
163. function mpprevy() {
164. var y = def.ty - 10
165. def.ty = y;
166. rryear(y);
167. return false;
168. }
169. function mpnexty() {
170. var y = def.ty + 10
171. def.ty = y;
172. rryear(y);
173. return false;
174. }
175. function rryear(y) {
176. var s = y - 4;
177. var ar = [];
178. for (var i = 0; i < 5; i++) {
179. ar.push(s + i);
180. ar.push(s + i + 5);
181. }
182. $("#BBIT-DP-MP td.bbit-dp-mp-year").each(function(i) {
183. if (def.Year == ar[i]) {
184. $(this).addClass("bbit-dp-mp-sel");
185. }
186. else {
187. $(this).removeClass("bbit-dp-mp-sel");
188. }
189. $(this).html("<a href='javascript:void(0);'>" + ar[i] + "</a>").attr("xyear", ar[i]);
190. });
191. }
192. function mpclick(e) {
193. var panel = $(this);
194. var et = e.target || e.srcElement;
195. var td = getTd(et);
196. if (td == null) {
197. return false;
198. }
199. if ($(td).hasClass("bbit-dp-mp-month")) {
200. if (!$(td).hasClass("bbit-dp-mp-sel")) {
201. var ctd = panel.find("td.bbit-dp-mp-month.bbit-dp-mp-sel");
202. if (ctd.length > 0) {
203. ctd.removeClass("bbit-dp-mp-sel");
204. }
205. $(td).addClass("bbit-dp-mp-sel")
206. def.cm = parseInt($(td).attr("xmonth"));
207. }
208. }
209. if ($(td).hasClass("bbit-dp-mp-year")) {
210. if (!$(td).hasClass("bbit-dp-mp-sel")) {
211. var ctd = panel.find("td.bbit-dp-mp-year.bbit-dp-mp-sel");
212. if (ctd.length > 0) {
213. ctd.removeClass("bbit-dp-mp-sel");
214. }
215. $(td).addClass("bbit-dp-mp-sel")
216. def.cy = parseInt($(td).attr("xyear"));
217. }
218. }
219. return false;
220. }
221. function showym() {
222. var mp = $("#BBIT-DP-MP");
223. var y = def.Year;
224. def.cy = def.ty = y;
225. var m = def.Month - 1;
226. def.cm = m;
227. var ms = $("#BBIT-DP-MP td.bbit-dp-mp-month");
228. for (var i = ms.length - 1; i >= 0; i--) {
229. var ch = $(ms[i]).attr("xmonth");
230. if (ch == m) {
231. $(ms[i]).addClass("bbit-dp-mp-sel");
232. }
233. else {
234. $(ms[i]).removeClass("bbit-dp-mp-sel");
235. }
236. }
237. rryear(y);
238. mp.css("top", -193).show().animate({ top: 0 }, { duration: 200 });
239. }
240. function getTd(elm) {
241. if (elm.tagName.toUpperCase() == "TD") {
242. return elm;
243. }
244. else if (elm.tagName.toUpperCase() == "BODY") {
245. return null;
246. }
247. else {
248. var p = $(elm).parent();
249. if (p.length > 0) {
250. if (p[0].tagName.toUpperCase() != "TD") {
251. return getTd(p[0]);
252. }
253. else {
254. return p[0];
255. }
256. }
257. }
258. return null;
259. }
260. function tbhandler(e) {
261. var et = e.target || e.srcElement;
262. var td = getTd(et);
263. if (td == null) {
264. return false;
265. }
266. var $td = $(td);
267. if (!$(td).hasClass("bbit-dp-disabled")) {
268. var s = $td.attr("xdate");
269. var arrs = s.split("-");
270. cp.data("indata", new Date(arrs[0], parseInt(arrs[1], 10) - 1, arrs[2]));
271. returndate();
272. }
273. return false;
274. }
275. function returnfalse() {
276. return false;
277. }
278. function prevm() {
279. if (def.Month == 1) {
280. def.Year--;
281. def.Month = 12;
282. }
283. else {
284. def.Month--
285. }
286. writecb();
287. return false;
288. }
289. function nextm() {
290. if (def.Month == 12) {
291. def.Year++;
292. def.Month = 1;
293. }
294. else {
295. def.Month++
296. }
297. writecb();
298. return false;
299. }
300. function returntoday() {
301. cp.data("indata", new Date());
302. returndate();
303. }
304. function returndate() {
305. var ct = cp.data("ctarget");
306. var ck = cp.data("cpk");
307. var re = cp.data("onReturn");
308. var ndate = cp.data("indata")
309. var ads = cp.data("ads");
310. var ade = cp.data("ade");
311. var dis = false;
312. if (ads && ndate < ads) {
313. dis = true;
314. }
315. if (ade && ndate > ade) {
316. dis = true;
317. }
318. if (dis) {
319. return;
320. }
321. if (re && jQuery.isFunction(re)) {
322. re.call(ct[0], cp.data("indata"));
323. }
324. else {
325. ct.val(cp.data("indata").Format("yyyy-MM-dd"));
326. }
327. ck.attr("isshow", "0");
328. cp.removeData("ctarget").removeData("cpk").removeData("indata").removeData("onReturn")
329. .removeData("ads").removeData("ade");
330. cp.css("visibility", "hidden");
331. ct = ck = null;
332. }
333. function writecb() {
334. var tb = $("#BBIT_DP_INNER tbody");
335. $("#BBIT_DP_YMBTN").html(def.monthName[def.Month - 1] + def.monthp + " " + def.Year);
336. var firstdate = new Date(def.Year, def.Month - 1, 1);
337.
338. var diffday = def.weekStart - firstdate.getDay();
339. var showmonth = def.Month - 1;
340. if (diffday > 0) {
341. diffday -= 7;
342. }
343. var startdate = DateAdd("d", diffday, firstdate);
344. var enddate = DateAdd("d", 42, startdate);
345. var ads = cp.data("ads");
346. var ade = cp.data("ade");
347. var bhm = [];
348. var tds = def.today.Format("yyyy-MM-dd");
349. var indata = cp.data("indata");
350. var ins = indata != null ? indata.Format("yyyy-MM-dd") : "";
351. for (var i = 1; i <= 42; i++) {
352. if (i % 7 == 1) {
353. bhm.push("<tr>");
354. }
355. var ndate = DateAdd("d", i - 1, startdate);
356. var tdc = [];
357. var dis = false;
358. if (ads && ndate < ads) {
359. dis = true;
360. }
361. if (ade && ndate > ade) {
362. dis = true;
363. }
364. if (ndate.getMonth() < showmonth) {
365. tdc.push("bbit-dp-prevday");
366. }
367. else if (ndate.getMonth() > showmonth) {
368. tdc.push("bbit-dp-nextday");
369. }
370.
371. if (dis) {
372. tdc.push("bbit-dp-disabled");
373. }
374. else {
375. tdc.push("bbit-dp-active");
376. }
377.
378. var s = ndate.Format("yyyy-MM-dd");
379. if (s == tds) {
380. tdc.push("bbit-dp-today");
381. }
382. if (s == ins) {
383. tdc.push("bbit-dp-selected");
384. }
385.
386. bhm.push("<td class='", tdc.join(" "), "' title='", ndate.Format("yyyy-MM-dd"), "' xdate='", ndate.Format("yyyy-M-d"), "'><a href='javascript:void(0);'><em><span>", ndate.getDate(), "</span></em></a></td>");
387. if (i % 7 == 0) {
388. bhm.push("</tr>");
389. }
390. }
391. tb.html(bhm.join(""));
392. }
393. var dateReg = /^(\d{1,4})(-|\/|.)(\d{1,2})\2(\d{1,2})$/;
394.
395. return $(this).each(function() {
396.
397. var obj = $(this).addClass("bbit-dp-input");
398. var picker = $(def.picker);
399. def.showtarget == null && obj.after(picker);
400. picker.click(function(e) {
401. var isshow = $(this).attr("isshow");
402. //先隐藏
403. var me = $(this);
404.
405. if (cp.css("visibility") == "visible") {
406. cp.css(" visibility", "hidden");
407. }
408. if (isshow == "1") {
409. me.attr("isshow", "0");
410. cp.removeData("ctarget").removeData("cpk").removeData("indata").removeData("onReturn");
411. return false;
412. }
413. var v = obj.val();
414. if (v != "") {
415. v = v.match(dateReg);
416. }
417. if (v == null || v == "") {
418. def.Year = new Date().getFullYear();
419. def.Month = new Date().getMonth() + 1;
420. def.Day = new Date().getDate();
421. def.inputDate = null
422. }
423. else {
424. def.Year = parseInt(v[1], 10);
425. def.Month = parseInt(v[3], 10);
426. def.Day = parseInt(v[4], 10);
427. def.inputDate = new Date(def.Year, def.Month - 1, def.Day);
428. }
429. cp.data("ctarget", obj).data("cpk", me).data("indata", def.inputDate).data("onReturn", def.onReturn);
430. if (def.applyrule && $.isFunction(def.applyrule)) {
431. var rule = def.applyrule.call(obj, obj[0].id);
432. if (rule) {
433. if (rule.startdate) {
434. cp.data("ads", rule.startdate);
435. }
436. else {
437. cp.removeData("ads");
438. }
439. if (rule.enddate) {
440. cp.data("ade", rule.enddate);
441. }
442. else {
443. cp.removeData("ade");
444. }
445. }
446. }
447. else {
448. cp.removeData("ads").removeData("ade")
449. }
450. writecb();
451.
452.
453. $("#BBIT-DP-T").height(cp.height());
454. var t = def.showtarget || obj;
455. var pos = t.offset();
456.
457.
458. var height = t.outerHeight();
459. var newpos = { left: pos.left, top: pos.top + height };
460. var w = cp.width();
461. var h = cp.height();
462. var bw = document.documentElement.clientWidth;
463. var bh = document.documentElement.clientHeight;
464. if ((newpos.left + w) >= bw) {
465. newpos.left = bw - w - 2;
466. }
467. if ((newpos.top + h) >= bh) {
468. newpos.top = pos.top - h - 2;
469. }
470. if (newpos.left < 0) {
471. newpos.left = 10;
472. }
473. if (newpos.top < 0) {
474. newpos.top = 10;
475. }
476. $("#BBIT-DP-MP").hide();
477. newpos.visibility = "visible";
478. cp.css(newpos);
479.
480.
481.
482. //cp.show();
483. $(this).attr("isshow", "1");
484.
485. $(document).one("click", function(e) {
486. me.attr("isshow", "0");
487. cp.removeData("ctarget").removeData("cpk").removeData("indata");
488. cp.css("visibility", "hidden");
489. });
490.
491. return false;
492. });
493. });
494. };
495.})(jQuery);