使用iframe作为日历的载体，不再被select和flash等控件挡住的日期输入框

');
strFrame='';
strFrame+='INPUT.button{BORDER-RIGHT: #B3C9E1 1px solid;BORDER-TOP: #B3C9E1 1px solid;BORDER-LEFT: #B3C9E1 1px solid;';
strFrame+='BORDER-BOTTOM: #ff9900 1px solid;BACKGROUND-COLOR: #EDF2F8;font-family:宋体;}';
strFrame+='TD{FONT-SIZE: 9pt;font-family:宋体;}';
strFrame+='';
strFrame+='';
strFrame+='var datelayerx,datelayery; /*存放日历控件的鼠标位置*/';
strFrame+='var bDrag; /*标记是否开始拖动*/';
strFrame+='function document.onmousemove() /*在鼠标移动事件中，如果开始拖动日历，则移动日历*/';
strFrame+='{if(bDrag && window.event.button==1)';
strFrame+=' {var DateLayer=parent.document.all.meizzDateLayer.style;';
strFrame+=' DateLayer.posLeft += window.event.clientX-datelayerx;/*由于每次移动以后鼠标位置都恢复为初始的位置，因此写法与div中不同*/';
strFrame+=' DateLayer.posTop += window.event.clientY-datelayery;}}';
strFrame+='function DragStart() /*开始日历拖动*/';
strFrame+='{var DateLayer=parent.document.all.meizzDateLayer.style;';
strFrame+=' datelayerx=window.event.clientX;';
strFrame+=' datelayery=window.event.clientY;';
strFrame+=' bDrag=true;}';
strFrame+='function DragEnd(){ /*结束日历拖动*/';
strFrame+=' bDrag=false;}';
strFrame+='';
strFrame+='

';
strFrame+='';
strFrame+='

';

window.frames.meizzDateLayer.document.writeln(strFrame);
window.frames.meizzDateLayer.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 odatelayer=window.frames.meizzDateLayer.document.all; //存放日历对象
function setday(tt,obj) //主调函数
{
if (arguments.length > 2){alert("对不起！传入本控件的参数太多！");return;}
if (arguments.length == 0){alert("对不起！您没有传回本控件任何参数！");return;}
var dads = document.all.meizzDateLayer.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})$/;
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; //保存外部传入的日期
}
else outDate="";
meizzSetDay(r[1],r[2]+1);
}
else{
outDate="";
meizzSetDay(new Date().getFullYear(), new Date().getMonth() + 1);
}
dads.display = '';

event.returnValue=false;
}

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 meizzWDay=new Array(39); //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.getAttribute("Author")==null && 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.getAttribute("Author")==null && document.activeElement != outObject && document.activeElement != outButton)
{
closeLayer();
}
}

function meizzWriteHead(yy,mm) //往 head 中写入当前的年与月
{
odatelayer.meizzYearHead.innerText = yy + " 年";
odatelayer.meizzMonthHead.innerText = mm + " 月";
}

function tmpSelectYearInnerHTML(strYear) //年份的下拉框
{
if (strYear.match(/\D/)!=null){alert("年份输入参数不是数字！");return;}
var m = (strYear) ? strYear : new Date().getFullYear();
if (m 9999) {alert("年份值不在 1000 到 9999 之间！");return;}
var n = m - 10;
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("月份输入参数不是数字！");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();
}

function closeLayer() //这个层的关闭
{
document.all.meizzDateLayer.style.display="none";
}

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);
}

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()) ?
"#E4E3F2":"#FFFFFF";
else
{
da.style.backgroundColor =((mm==1?yy-1:yy)==outDate.getFullYear() && (mm==1?12:mm-1)== outDate.getMonth() + 1 &&
meizzWDay[i]==outDate.getDate())? "#E8F5E7" : // 选中日期颜色
(((mm==1?yy-1:yy) == new Date().getFullYear() && (mm==1?12:mm-1) == new Date().getMonth()+1 &&
meizzWDay[i] == new Date().getDate()) ? "#E4E3F2":"#FFFFFF"); // 当前系统时间颜色
//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="#E4E3F2";
// da.borderColorDark="#E4E3F2"; // 选择日期边框颜色
}
}

}
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()) ?
"#E4E3F2":"#FFFFFF";
else
{
da.style.backgroundColor =((mm==12?yy+1:yy)==outDate.getFullYear() && (mm==12?1:mm+1)== outDate.getMonth() + 1 &&
meizzWDay[i]==outDate.getDate())? "#E8F5E7" : // 选中日期颜色
(((mm==12?yy+1:yy) == new Date().getFullYear() && (mm==12?1:mm+1) == new Date().getMonth()+1 &&
meizzWDay[i] == new Date().getDate()) ? "#E4E3F2":"#FFFFFF"); // 当前系统时间
//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="#E4E3F2";
da.borderColorDark="#E4E3F2"; // 选择日期边框颜色
}
}
}
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())?
"#FFFFFF":"#FFFFFF";
else
{
da.style.backgroundColor =(yy==outDate.getFullYear() && mm== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate())?
"#D5ECD2":((yy == new Date().getFullYear() && mm == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate())?
"#E4E3F2":"#F8F8FC"); // 前一个当前系统时间,后一个是本月时间低色
//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="#E4E3F2";
//da.borderColorDark="#E4E3F2"; // 选择日期边框颜色
}
}
}
da.style.cursor="hand"
da.onmouseover=Function("this.backgroundColor='#000000';this.borderColorDark='#000099';this.borderColorLight='#000099';");
da.onmouseout=Function("this.bgColor='#000000';this.borderColorDark='#9CBADE';this.borderColorLight='#9CBADE';");
}
else{da.innerHTML="";da.style.backgroundColor="";da.style.cursor="default";da.onmouseover=Function("this.backgroundColor='#000000';this.borderColorDark='#000099';this.borderColorLight='#000099';");
da.onmouseout=Function("this.bgColor='#000000';this.borderColorDark='#9CBADE';this.borderColorLight='#9CBADE';");}
}
}

function meizzDayClick(n,ex) //点击显示框选取日期，主输入函数*************
{
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
//判断月份，并进行对应的处理
if(mm12){
yy++;
mm=mm-12;
}

if (mm

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