一个写得较好的JavaScript日期挑选控件

由于是在网络上无意间找到的一个例程，所以不知道原作者，在此还请原作者见谅！
完整源代码如下：
直接用的JS日期控件'; window.frames.endDateLayer.document.writeln(strFrame); window.frames.endDateLayer.document.close(); //解决ie进度条不结束的问题 //==================================================== WEB 页面显示部分 ====================================================== var outObject; var outButton; //点击的按钮 var outDate=""; //存放对象的日期 var bUseTime=false; //是否使用时间 var odatelayer=window.frames.endDateLayer.document.all; //存放日历对象 var odatelayer=window.endDateLayer.document.all; //odatelayer.bUseTimeLayer.innerText="NO"; bImgSwitch(); odatelayer.bUseTimeLayer.innerHTML=bImg; function setday(tt,obj) //主调函数 { if (arguments.length > 2){alert("對不起！傳入本控件的參數太多！");return;} if (arguments.length == 0){alert("對不起！您沒有傳回本控件任何參數");return;} var dads = document.all.endDateLayer.style; var th = tt; var ttop = tt.offsetTop; //TT控件的定位点高 var thei = tt.clientHeight; //TT控件本身的高 var tleft = tt.offsetLeft; //TT控件的定位点宽 var ttyp = tt.type; //TT控件的类型 while (tt = tt.offsetParent){ttop+=tt.offsetTop; tleft+=tt.offsetLeft;} dads.top = (ttyp=="image") ? ttop+thei : ttop+thei+6; dads.left = tleft; outObject = (arguments.length == 1) ? th : obj; outButton = (arguments.length == 1) ? null : th; //设定外部点击的按钮 //根据当前输入框的日期显示日历的年月 var reg = /^(\d+)-(\d{1,2})-(\d{1,2})/; //不含时间 var r = outObject.value.match(reg); if(r!=null){ r[2]=r[2]-1; var d=new Date(r[1],r[2],r[3]); if(d.getFullYear()==r[1] && d.getMonth()==r[2] && d.getDate()==r[3]) { outDate=d; parent.meizzTheYear = r[1]; parent.meizzTheMonth = r[2]; parent.meizzTheDate = r[3]; } else { outDate=""; } meizzSetDay(r[1],r[2]+1); } else { outDate=""; meizzSetDay(new Date().getFullYear(), new Date().getMonth() + 1); } dads.display = ''; //判断初始化时是否使用时间,非严格验证 //if (outObject.value.length>10) //{ bUseTime=true; bImgSwitch(); odatelayer.bUseTimeLayer.innerHTML=bImg; meizzWriteHead(meizzTheYear,meizzTheMonth); //} //else //{ // bUseTime=false; // bImgSwitch(); // odatelayer.bUseTimeLayer.innerHTML=bImg; // meizzWriteHead(meizzTheYear,meizzTheMonth); //} try { event.returnValue=false; } catch (e) { //此处排除错误，错误原因暂未找到。 } } var MonHead = new Array(12); //定义阳历中每个月的最大天数 MonHead[0] = 31; MonHead[1] = 28; MonHead[2] = 31; MonHead[3] = 30; MonHead[4] = 31; MonHead[5] = 30; MonHead[6] = 31; MonHead[7] = 31; MonHead[8] = 30; MonHead[9] = 31; MonHead[10] = 30; MonHead[11] = 31; var meizzTheYear=new Date().getFullYear(); //定义年的变量的初始值 var meizzTheMonth=new Date().getMonth()+1; //定义月的变量的初始值 var meizzTheDate=new Date().getDate(); //定义日的变量的初始值 var meizzTheHour=new Date().getHours(); //定义小时变量的初始值 var meizzTheMinute=new Date().getMinutes();//定义分钟变量的初始值 var meizzTheSecond=new Date().getSeconds();//定义秒变量的初始值 var meizzWDay=new Array(37); //定义写日期的数组 function document.onclick() //任意点击时关闭该控件 //ie6的情况可以由下面的切换焦点处理代替 { with(window.event) { if (srcElement != outObject && srcElement != outButton) closeLayer(); } } function document.onkeyup() //按Esc键关闭，切换焦点关闭 { if (window.event.keyCode==27){ if(outObject)outObject.blur(); closeLayer(); } else if(document.activeElement) { if(document.activeElement != outObject && document.activeElement != outButton) { closeLayer(); } } } function meizzWriteHead(yy,mm,ss) //往 head 中写入当前的年与月 { odatelayer.meizzYearHead.innerText = yy + " 年"; odatelayer.meizzMonthHead.innerText = format(mm) + " 月"; //插入当前小时、分 odatelayer.meizzHourHead.innerText=bUseTime?(meizzTheHour+" 時"):""; odatelayer.meizzMinuteHead.innerText=bUseTime?(meizzTheMinute+" 分"):""; odatelayer.meizzSecondHead.innerText=bUseTime?(meizzTheSecond+" 秒"):""; } function tmpSelectYearInnerHTML(strYear) //年份的下拉框 { if (strYear.match(/\D/)!=null){alert("年份輸入參數不是數字！");return;} var m = (strYear) ? strYear : new Date().getFullYear(); if (m 9999) {alert("年份值不在 1000 到 9999 之間！");return;} var n = m - 50; if (n 9999) n = 9974; var s = " \r\n"; var selectInnerHTML = s; for (var i = n; i " + i + "年" + "\r\n"; } else { selectInnerHTML += "" + i + "年" + "\r\n"; } } selectInnerHTML += ""; odatelayer.tmpSelectYearLayer.style.display=""; odatelayer.tmpSelectYearLayer.innerHTML = selectInnerHTML; odatelayer.tmpSelectYear.focus(); } function tmpSelectMonthInnerHTML(strMonth) //月份的下拉框 { if (strMonth.match(/\D/)!=null){alert("月份輸入參數不是數字！");return;} var m = (strMonth) ? strMonth : new Date().getMonth() + 1; var s = " \r\n"; var selectInnerHTML = s; for (var i = 1; i "+i+"月"+"\r\n"; } else { selectInnerHTML += ""+i+"月"+"\r\n"; } } selectInnerHTML += ""; odatelayer.tmpSelectMonthLayer.style.display=""; odatelayer.tmpSelectMonthLayer.innerHTML = selectInnerHTML; odatelayer.tmpSelectMonth.focus(); } /***** 增加 小时、分钟 ***/ function tmpSelectHourInnerHTML(strHour) //小时的下拉框 { if (!bUseTime){return;} if (strHour.match(/\D/)!=null){alert("小時輸入參數不是數字！");return;} var m = (strHour) ? strHour : new Date().getHours(); var s = "\r\n"; var selectInnerHTML = s; for (var i = 0; i "+i+"\r\n"; } else { selectInnerHTML += ""+i+"\r\n"; } } selectInnerHTML += ""; odatelayer.tmpSelectHourLayer.style.display=""; odatelayer.tmpSelectHourLayer.innerHTML = selectInnerHTML; odatelayer.tmpSelectHour.focus(); } function tmpSelectMinuteInnerHTML(strMinute) //分钟的下拉框 { if (!bUseTime){return;} if (strMinute.match(/\D/)!=null){alert("分鐘輸入數字不是數字！");return;} var m = (strMinute) ? strMinute : new Date().getMinutes(); var s = "\r\n"; var selectInnerHTML = s; for (var i = 0; i "+i+"\r\n"; } else { selectInnerHTML += ""+i+"\r\n"; } } selectInnerHTML += ""; odatelayer.tmpSelectMinuteLayer.style.display=""; odatelayer.tmpSelectMinuteLayer.innerHTML = selectInnerHTML; odatelayer.tmpSelectMinute.focus(); } function tmpSelectSecondInnerHTML(strSecond) //秒的下拉框 { if (!bUseTime){return;} if (strSecond.match(/\D/)!=null){alert("秒鐘輸入參數不是數字！");return;} var m = (strSecond) ? strSecond : new Date().getMinutes(); var s = "\r\n"; var selectInnerHTML = s; for (var i = 0; i "+i+"\r\n"; } else { selectInnerHTML += ""+i+"\r\n"; } } selectInnerHTML += ""; odatelayer.tmpSelectSecondLayer.style.display=""; odatelayer.tmpSelectSecondLayer.innerHTML = selectInnerHTML; odatelayer.tmpSelectSecond.focus(); } function closeLayer() //这个层的关闭 { var o = document.getElementById("endDateLayer"); if (o != null) { o.style.display="none"; } } function showLayer() //这个层的关闭 { document.all.endDateLayer.style.display=""; } function IsPinYear(year) //判断是否闰平年 { if (0==year%4&&((year%100!=0)||(year%400==0))) return true;else return false; } function GetMonthCount(year,month) //闰年二月为29天 { var c=MonHead[month-1];if((month==2)&&IsPinYear(year)) c++;return c; } function GetDOW(day,month,year) //求某天的星期几 { var dt=new Date(year,month-1,day).getDay()/7; return dt; } function meizzPrevY() //往前翻 Year { if(meizzTheYear > 999 && meizzTheYear 999 && meizzTheYear 1){meizzTheMonth--}else{meizzTheYear--;meizzTheMonth=12;} meizzSetDay(meizzTheYear,meizzTheMonth); } function meizzNextM() //往后翻月份 { if(meizzTheMonth==12){meizzTheYear++;meizzTheMonth=1}else{meizzTheMonth++} meizzSetDay(meizzTheYear,meizzTheMonth); } // TODO: 整理代码 function meizzSetDay(yy,mm) //主要的写程序********** { meizzWriteHead(yy,mm); //设置当前年月的公共变量为传入值 meizzTheYear=yy; meizzTheMonth=mm; for (var i = 0; i " + meizzWDay[i] + ""; da.title=(mm==1?12:mm-1) +"月" + meizzWDay[i] + "日"; da.onclick=Function("meizzDayClick(this.innerText,-1)"); if(!outDate) da.style.backgroundColor = ((mm==1?yy-1:yy) == new Date().getFullYear() && (mm==1?12:mm-1) == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate()) ? "#5CEFA0":"#f5f5f5"; else { da.style.backgroundColor =((mm==1?yy-1:yy)==outDate.getFullYear() && (mm==1?12:mm-1)== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate())? "#84C1FF" : (((mm==1?yy-1:yy) == new Date().getFullYear() && (mm==1?12:mm-1) == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate()) ? "#5CEFA0":"#f5f5f5"); //将选中的日期显示为凹下去 if((mm==1?yy-1:yy)==outDate.getFullYear() && (mm==1?12:mm-1)== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate()) { da.borderColorLight="#FFFFFF"; da.borderColorDark="#63A3E9"; } } } else if (i>=firstday+GetMonthCount(yy,mm)) //下个月的部分 { da.innerHTML="" + meizzWDay[i] + ""; da.title=(mm==12?1:mm+1) +"月" + meizzWDay[i] + "日"; da.onclick=Function("meizzDayClick(this.innerText,1)"); if(!outDate) da.style.backgroundColor = ((mm==12?yy+1:yy) == new Date().getFullYear() && (mm==12?1:mm+1) == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate()) ? "#5CEFA0":"#f5f5f5"; else { da.style.backgroundColor =((mm==12?yy+1:yy)==outDate.getFullYear() && (mm==12?1:mm+1)== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate())? "#84C1FF" : (((mm==12?yy+1:yy) == new Date().getFullYear() && (mm==12?1:mm+1) == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate()) ? "#5CEFA0":"#f5f5f5"); //将选中的日期显示为凹下去 if((mm==12?yy+1:yy)==outDate.getFullYear() && (mm==12?1:mm+1)== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate()) { da.borderColorLight="#FFFFFF"; da.borderColorDark="#63A3E9"; } } } else //本月的部分 { da.innerHTML="" + meizzWDay[i] + ""; da.title=mm +"月" + meizzWDay[i] + "日"; da.onclick=Function("meizzDayClick(this.innerText,0)"); //给td赋予onclick事件的处理 //如果是当前选择的日期，则显示亮蓝色的背景；如果是当前日期，则显示暗黄色背景 if(!outDate) da.style.backgroundColor = (yy == new Date().getFullYear() && mm == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate())? "#5CEFA0":"#f5f5f5"; else { da.style.backgroundColor =(yy==outDate.getFullYear() && mm== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate())? "#84C1FF":((yy == new Date().getFullYear() && mm == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate())? "#5CEFA0":"#f5f5f5"); //将选中的日期显示为凹下去 if(yy==outDate.getFullYear() && mm== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate()) { da.borderColorLight="#FFFFFF"; da.borderColorDark="#63A3E9"; } } } da.style.cursor="hand" } else { da.innerHTML="";da.style.backgroundColor="";da.style.cursor="default"; } } } function meizzDayClick(n,ex) //点击显示框选取日期，主输入函数************* { parent.meizzTheDate=n; var yy=meizzTheYear; var mm = parseInt(meizzTheMonth)+ex; //ex表示偏移量，用于选择上个月份和下个月份的日期 var hh=meizzTheHour; var mi=meizzTheMinute; var se=meizzTheSecond; //判断月份，并进行对应的处理 if(mm12){ yy++; mm=mm-12; } if (mm 测试一，onfocus事件调用：测试二，onclick事件调用：
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]