此项一定要加：charset="gb2312"
主调函数：onfocus="calendar();" 在文本框控件上加事件。
JS代码
<!--document.write("<div id=meizzCalendarLayer style='position: absolute; z-index: 9999; 144; height: 193; display: none'>");document.write("<iframe name=meizzCalendarIframe scrolling=no frameborder=0 width=100% height=100%></iframe></div>");function writeIframe()
{
var strIframe = "<html><head><meta http-equiv='Content-Type' content='text/html; charset=gb2312'><style>"+ "*{font-size: 12px; font-family: 细明体}"+ ".bg{ color: "+ WebCalendar.lightColor +"; cursor: default; background-color: "+ WebCalendar.darkColor +";}"+ "table#tableMain{ 142; height: 180;}"+ "table#tableWeek td{ color: "+ WebCalendar.lightColor +";}"+ "table#tableDay td{ font-weight: bold;}"+ "td#meizzYearHead, td#meizzYearMonth{color: "+ WebCalendar.wordColor +"}"+ ".out { text-align: center; border-top: 1px solid "+ WebCalendar.DarkBorder +"; border-left: 1px solid "+ WebCalendar.DarkBorder +";"+ "border-right: 1px solid "+ WebCalendar.lightColor +"; border-bottom: 1px solid "+ WebCalendar.lightColor +";}"+ ".over{ text-align: center; border-top: 1px solid #FFFFFF; border-left: 1px solid #FFFFFF;"+ "border-bottom: 1px solid "+ WebCalendar.DarkBorder +"; border-right: 1px solid "+ WebCalendar.DarkBorder +"}"+ "input{ border: 1px solid "+ WebCalendar.darkColor +"; padding-top: 1px; height: 18; cursor: hand;"+ " color:"+ WebCalendar.wordColor +"; background-color: "+ WebCalendar.btnBgColor +"}"+ "</style></head><body onselectstart='return false' style='margin: 0px' oncontextmenu='return false'><form name=meizz>";
if (WebCalendar.drag){ strIframe += "<scr"+"ipt language=javascript>"+ "var drag=false, cx=0, cy=0, o = parent.WebCalendar.calendar; function document.onmousemove(){"+ "if(parent.WebCalendar.drag && drag){if(o.style.left=='')o.style.left=0; if(o.style.top=='')o.style.top=0;"+ "o.style.left = parseInt(o.style.left) + window.event.clientX-cx;"+ "o.style.top = parseInt(o.style.top) + window.event.clientY-cy;}}"+ "function document.onkeydown(){ switch(window.event.keyCode){ case 27 : parent.hiddenCalendar(); break;"+ "case 37 : parent.prevM(); break; case 38 : parent.prevY(); break; case 39 : parent.nextM(); break; case 40 : parent.nextY(); break;"+ "case 84 : document.forms[0].today.click(); break;} window.event.keyCode = 0; window.event.returnValue= false;}"+
"function dragStart(){cx=window.event.clientX; cy=window.event.clientY; drag=true;}</scr"+"ipt>"} strIframe += "<select name=tmpYearSelect onblur='parent.hiddenSelect(this)' style='z-index:1;position:absolute;top:3;left:18;display:none'"+ " onchange='parent.WebCalendar.thisYear =this.value; parent.hiddenSelect(this); parent.writeCalendar();'></select>"+ "<select name=tmpMonthSelect onblur='parent.hiddenSelect(this)' style='z-index:1; position:absolute;top:3;left:74;display:none'"+ " onchange='parent.WebCalendar.thisMonth=this.value; parent.hiddenSelect(this); parent.writeCalendar();'></select>"+ "<table id=tableMain class=bg border=0 cellspacing=2 cellpadding=0>"+ "<tr><td width=140 height=19 bgcolor='"+ WebCalendar.lightColor +"'>"+ " <table width=140 id=tableHead border=0 cellspacing=1 cellpadding=0><tr align=center>"+ " <td width=15 height=19 class=bg title='向前翻 1 月
快捷键：←' style='cursor: hand' onclick='parent.prevM()'><b><</b></td>"+ " <td width=60 id=meizzYearHead title='点击此处选择年份' onclick='parent.funYearSelect(parseInt(this.innerText, 10))'"+ " onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+ " onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'></td>"+ " <td width=50 id=meizzYearMonth title='点击此处选择月份' onclick='parent.funMonthSelect(parseInt(this.innerText, 10))'"+ " onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+ " onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'></td>"+ " <td width=15 class=bg title='向后翻 1 月
快捷键：→' onclick='parent.nextM()' style='cursor: hand'><b>></b></td></tr></table>"+ "</td></tr><tr><td height=20><table id=tableWeek border=1 width=140 cellpadding=0 cellspacing=0 "; if(WebCalendar.drag){strIframe += "onmousedown='dragStart()' onmouseup='drag=false' onmouseout='drag=false'";} strIframe += " borderColorLight='"+ WebCalendar.darkColor +"' borderColorDark='"+ WebCalendar.lightColor +"'>"+ " <tr align=center><td height=20>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td></tr></table>"+ "</td></tr><tr><td valign=top width=140 bgcolor='"+ WebCalendar.lightColor +"'>"+ " <table id=tableDay height=120 width=140 border=0 cellspacing=1 cellpadding=0>"; for(var x=0; x<5; x++){ strIframe += "<tr>"; for(var y=0; y<7; y++) strIframe += "<td class=out id='meizzDay"+ (x*7+y) +"'></td>"; strIframe += "</tr>";} strIframe += "<tr>"; for(var x=35; x<39; x++) strIframe += "<td class=out id='meizzDay"+ x +"'></td>"; strIframe +="<td colspan=3 class=out title='"+ WebCalendar.regInfo +"'><input style=' background-color: "+ WebCalendar.btnBgColor +";cursor: hand; padding-top: 4px; 100%; height: 100%; border: 0' onfocus='this.blur()'"+ " type=button value=' 关闭' onclick='parent.hiddenCalendar()'></td></tr></table>"+ "</td></tr><tr><td height=20 width=140 bgcolor='"+ WebCalendar.lightColor +"'>"+ " <table border=0 cellpadding=1 cellspacing=0 width=140>"+ " <tr><td><input name=prevYear title='向前翻 1 年
快捷键：↑' onclick='parent.prevY()' type=button value='<<'"+ " onfocus='this.blur()' style='meizz:expression(this.disabled=parent.WebCalendar.thisYear==1000)'><input"+ " onfocus='this.blur()' name=prevMonth title='向前翻 1 月
快捷键：←' onclick='parent.prevM()' type=button value='< '>"+ " </td><td align=center><input name=today type=button value='今天' onfocus='this.blur()' style=' 50' title='当前日期
快捷键：T'"+ " onclick=\"parent.returnDate(new Date().getDate() +'/'+ (new Date().getMonth() +1) +'/'+ new Date().getFullYear())\">"+ " </td><td align=right><input title='向后翻 1 月
快捷键：→' name=nextMonth onclick='parent.nextM()' type=button value=' >'"+ " onfocus='this.blur()'><input name=nextYear title='向后翻 1 年
快捷翻：↓' onclick='parent.nextY()' type=button value='>>'"+ " onfocus='this.blur()' style='meizz:expression(this.disabled=parent.WebCalendar.thisYear==9999)'></td></tr></table>"+ "</td></tr><table></form></body></html>"; with(WebCalendar.iframe) { document.writeln(strIframe); document.close(); for(var i=0; i<39; i++) { WebCalendar.dayObj[i] = eval("meizzDay"+ i); WebCalendar.dayObj[i].onmouseover = dayMouseOver; WebCalendar.dayObj[i].onmouseout = dayMouseOut; WebCalendar.dayObj[i].onclick = returnDate; } }
}function WebCalendar() //初始化日历的设置{ this.regInfo = "Create By Meelon 2004-5-24
关闭的快捷键：[Esc]"; this.daysMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); this.day = new Array(39); //定义日历展示用的数组 this.dayObj = new Array(39); //定义日期展示控件数组 this.dateStyle = null; //保存格式化後日期数组 this.objExport = null; //日历回传的显示控件 this.eventSrc = null; //日历显示的触发控件 this.inputDate = null; //转化外的输入的日期(d/m/yyyy) this.thisYear = new Date().getFullYear(); //定义年的变量的初始值 this.thisMonth = new Date().getMonth()+ 1; //定义月的变量的初始值 this.thisDay = new Date().getDate(); //定义日的变量的初始值 this.today = this.thisDay +"/"+ this.thisMonth +"/"+ this.thisYear; //今天(d/m/yyyy) this.iframe = window.frames("meizzCalendarIframe"); //日历的 iframe 载体 this.calendar = getObjectById("meizzCalendarLayer"); //日历的层 this.dateReg = ""; //日历格式验证的正则式 this.yearFall = 50; //定义年下拉框的年差值 this.format = "yyyy-mm-dd"; //回传日期的格式 this.timeShow = false; //是否返回时间 this.drag = true; //是否允许拖动 this.darkColor = "#8DAAE4"; //控件的暗色 this.lightColor = "#FFFFFF"; //控件的亮色 this.btnBgColor = "#E6E6FA"; //控件的按钮背景色 this.wordColor = "#000080"; //控件的文字颜色 this.wordDark = "#DCDCDC"; //控件的暗文字颜色 this.dayBgColor = "#F5F5FA"; //日期数字背景色 this.todayColor = "#FF6600"; //今天在日历上的标示背景色 this.DarkBorder = "#D4D0C8"; //日期显示的立体表达色 } var WebCalendar = new WebCalendar();function calendar() //主调函数{ var e = window.event.srcElement; writeIframe(); var o = WebCalendar.calendar.style; WebCalendar.eventSrc = e; if (arguments.length == 0) WebCalendar.objExport = e; else WebCalendar.objExport = eval(arguments[0]); WebCalendar.iframe.tableWeek.style.cursor = WebCalendar.drag ? "move" : "default"; var t = e.offsetTop, h = e.clientHeight, l = e.offsetLeft, p = e.type; while (e = e.offsetParent){t += e.offsetTop; l += e.offsetLeft;} o.display = ""; WebCalendar.iframe.document.body.focus(); var cw = WebCalendar.calendar.clientWidth, ch = WebCalendar.calendar.clientHeight; var dw = document.body.clientWidth, dl = document.body.scrollLeft, dt = document.body.scrollTop; if (document.body.clientHeight + dt - t - h >= ch) o.top = (p=="image")? t + h : t + h + 6; else o.top = (t - dt < ch) ? ((p=="image")? t + h : t + h + 6) : t - ch; if (dw + dl - l >= cw) o.left = l; else o.left = (dw >= cw) ? dw - cw + dl : dl; if (!WebCalendar.timeShow) WebCalendar.dateReg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/; else WebCalendar.dateReg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/; try{ if (WebCalendar.objExport.value.trim() != ""){ WebCalendar.dateStyle = WebCalendar.objExport.value.trim().match(WebCalendar.dateReg); if (WebCalendar.dateStyle == null) { WebCalendar.thisYear = new Date().getFullYear(); WebCalendar.thisMonth = new Date().getMonth()+ 1; WebCalendar.thisDay = new Date().getDate(); alert("原文本框里的日期有错误！\n可能与你定义的显示时分秒有冲突！"); writeCalendar(); return false; } else { WebCalendar.thisYear = parseInt(WebCalendar.dateStyle[1], 10); WebCalendar.thisMonth = parseInt(WebCalendar.dateStyle[3], 10); WebCalendar.thisDay = parseInt(WebCalendar.dateStyle[4], 10); WebCalendar.inputDate = parseInt(WebCalendar.thisDay, 10) +"/"+ parseInt(WebCalendar.thisMonth, 10) +"/"+ parseInt(WebCalendar.thisYear, 10); writeCalendar(); } } else writeCalendar(); } catch(e){writeCalendar();}}function funMonthSelect() //月份的下拉框{ var m = isNaN(parseInt(WebCalendar.thisMonth, 10)) ? new Date().getMonth() + 1 : parseInt(WebCalendar.thisMonth); var e = WebCalendar.iframe.document.forms[0].tmpMonthSelect; for (var i=1; i<13; i++) e.options.add(new Option(i +"月", i)); e.style.display = ""; e.value = m; e.focus(); window.status = e.style.top;}function funYearSelect() //年份的下拉框{ var n = WebCalendar.yearFall; var e = WebCalendar.iframe.document.forms[0].tmpYearSelect; var y = isNaN(parseInt(WebCalendar.thisYear, 10)) ? new Date().getFullYear() : parseInt(WebCalendar.thisYear); y = (y <= 1000)? 1000 : ((y >= 9999)? 9999 : y); var min = (y - n >= 1000) ? y - n : 1000; var max = (y + n <= 9999) ? y + n : 9999; min = (max == 9999) ? max-n*2 : min; max = (min == 1000) ? min+n*2 : max; for (var i=min; i<=max; i++) e.options.add(new Option(i +"年", i)); e.style.display = ""; e.value = y; e.focus();}function prevM() //往前翻月份{ WebCalendar.thisDay = 1; if (WebCalendar.thisMonth==1) { WebCalendar.thisYear--; WebCalendar.thisMonth=13; } WebCalendar.thisMonth--; writeCalendar();}function nextM() //往后翻月份{ WebCalendar.thisDay = 1; if (WebCalendar.thisMonth==12) { WebCalendar.thisYear++; WebCalendar.thisMonth=0; } WebCalendar.thisMonth++; writeCalendar();}function prevY(){WebCalendar.thisDay = 1; WebCalendar.thisYear--; writeCalendar();}//往前翻 Yearfunction nextY(){WebCalendar.thisDay = 1; WebCalendar.thisYear++; writeCalendar();}//往後翻 Yearfunction hiddenSelect(e){for(var i=e.options.length; i>-1; i--)e.options.remove(i); e.style.display="none";}function getObjectById(id){ if(document.all) return(eval("document.all."+ id)); return(eval(id)); }function hiddenCalendar(){getObjectById("meizzCalendarLayer").style.display = "none";};function appendZero(n){return(("00"+ n).substr(("00"+ n).length-2));}//日期自动补零程序function String.prototype.trim(){return this.replace(/(^\s*)|(\s*$)/g,"");}function dayMouseOver(){ this.className = "over"; this.style.backgroundColor = WebCalendar.darkColor; if(WebCalendar.day[this.id.substr(8)].split("/")[1] == WebCalendar.thisMonth) this.style.color = WebCalendar.lightColor;}function dayMouseOut(){ this.className = "out"; var d = WebCalendar.day[this.id.substr(8)], a = d.split("/"); this.style.removeAttribute('backgroundColor'); if(a[1] == WebCalendar.thisMonth && d != WebCalendar.today) { if(WebCalendar.dateStyle && a[0] == parseInt(WebCalendar.dateStyle[4], 10)) this.style.color = WebCalendar.lightColor; this.style.color = WebCalendar.wordColor; }}function writeCalendar() //对日历显示的数据的处理程序{ var y = WebCalendar.thisYear; var m = WebCalendar.thisMonth; var d = WebCalendar.thisDay; WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28; if (!(y<=9999 && y >= 1000 && parseInt(m, 10)>0 && parseInt(m, 10)<13 && parseInt(d, 10)>0)){ alert("对不起，你输入了错误的日期！"); WebCalendar.thisYear = new Date().getFullYear(); WebCalendar.thisMonth = new Date().getMonth()+ 1; WebCalendar.thisDay = new Date().getDate(); } y = WebCalendar.thisYear; m = WebCalendar.thisMonth; d = WebCalendar.thisDay; WebCalendar.iframe.meizzYearHead.innerText = y +" 年"; WebCalendar.iframe.meizzYearMonth.innerText = parseInt(m, 10) +" 月"; WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28; //闰年二月为29天 var w = new Date(y, m-1, 1).getDay(); var prevDays = m==1 ? WebCalendar.daysMonth[11] : WebCalendar.daysMonth[m-2]; for(var i=(w-1); i>=0; i--) //这三个 for 循环为日历赋数据源（数组 WebCalendar.day）格式是 d/m/yyyy { WebCalendar.day[i] = prevDays +"/"+ (parseInt(m, 10)-1) +"/"+ y; if(m==1) WebCalendar.day[i] = prevDays +"/"+ 12 +"/"+ (parseInt(y, 10)-1); prevDays--; } for(var i=1; i<=WebCalendar.daysMonth[m-1]; i++) WebCalendar.day[i+w-1] = i +"/"+ m +"/"+ y; for(var i=1; i<39-w-WebCalendar.daysMonth[m-1]+1; i++) { WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ (parseInt(m, 10)+1) +"/"+ y; if(m==12) WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ 1 +"/"+ (parseInt(y, 10)+1); } for(var i=0; i<39; i++) //这个循环是根据源数组写到日历里显示 { var a = WebCalendar.day[i].split("/"); WebCalendar.dayObj[i].innerText = a[0]; WebCalendar.dayObj[i].title = a[2] +"-"+ appendZero(a[1]) +"-"+ appendZero(a[0]); WebCalendar.dayObj[i].bgColor = WebCalendar.dayBgColor; WebCalendar.dayObj[i].style.color = WebCalendar.wordColor; if ((i<10 && parseInt(WebCalendar.day[i], 10)>20) || (i>27 && parseInt(WebCalendar.day[i], 10)<12)) WebCalendar.dayObj[i].style.color = WebCalendar.wordDark; if (WebCalendar.inputDate==WebCalendar.day[i]) //设置输入框里的日期在日历上的颜色 {WebCalendar.dayObj[i].bgColor = WebCalendar.darkColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;} if (WebCalendar.day[i] == WebCalendar.today) //设置今天在日历上反应出来的颜色 {WebCalendar.dayObj[i].bgColor = WebCalendar.todayColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;} }}function returnDate() //根据日期格式等返回用户选定的日期{ if(WebCalendar.objExport) { var returnValue; var a = (arguments.length==0) ? WebCalendar.day[this.id.substr(8)].split("/") : arguments[0].split("/"); var d = WebCalendar.format.match(/^(\w{4})(-|\/)(\w{1,2})\2(\w{1,2})$/); if(d==null){alert("你设定的日期输出格式不对！\r\n\r\n请重新定义 WebCalendar.format ！"); return false;} var flag = d[3].length==2 || d[4].length==2; //判断返回的日期格式是否要补零 returnValue = flag ? a[2] +d[2]+ appendZero(a[1]) +d[2]+ appendZero(a[0]) : a[2] +d[2]+ a[1] +d[2]+ a[0]; if(WebCalendar.timeShow) { var h = new Date().getHours(), m = new Date().getMinutes(), s = new Date().getSeconds(); returnValue += flag ? " "+ appendZero(h) +":"+ appendZero(m) +":"+ appendZero(s) : " "+ h +":"+ m +":"+ s; } WebCalendar.objExport.value = returnValue; hiddenCalendar(); }}function document.onclick(){ if(WebCalendar.eventSrc != window.event.srcElement) hiddenCalendar();}//-->