JS写的日历控件

不知道哪天在网上找到了这个控件，感觉还不错，最近正好用到

<script type="text/javascript" language="javascript">
var gMonths=new Array("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");
var WeekDay=new Array("日","一","二","三","四","五","六");
var strToday="今天";
var strYear="年";
var strMonth="月";
var strDay="日";
var splitChar="-";
var startYear=2000;
var endYear=2050;
var dayTdHeight=12;
var dayTdTextSize=12;
var gcNotCurMonth="#E0E0E0";
var gcRestDay="#FF0000";
var gcWorkDay="#444444";
var gcMouseOver="#79D0FF";
var gcMouseOut="#F4F4F4";
var gcToday="#444444";
var gcTodayMouseOver="#6699FF";
var gcTodayMouseOut="#79D0FF";
var goSelectTag=new Array();
var gdCurDate=new Date();
var giYear=gdCurDate.getFullYear();
var giMonth=gdCurDate.getMonth()+1;
var giDay=gdCurDate.getDate();
function $()
{
var elements=new Array();

for(var i=0;i<arguments.length;i++)
{
var element=arguments[i];

if(typeof(arguments[i])=='string')
{
element=document.getElementById(arguments[i]);
}
if(arguments.length==1)
{
return element;
}
elements.Push(element);
}

return elements;
}
Array.prototype.Push=function()
{
var startLength=this.length;

for(var i=0;i<arguments.length;i++)
{
this[startLength+i]=arguments[i];
}
return this.length;
}
String.prototype.HexToDec=function()
{
return parseInt(this,16);
}
String.prototype.cleanBlank=function()
{
return this.isEmpty()?"":this.replace(//s/g,"");
}
function checkColor()
{
var color_tmp=(arguments[0]+"").replace(//s/g,"").toUpperCase();
var model_tmp1=arguments[1].toUpperCase();
var model_tmp2="rgb("+arguments[1].substring(1,3).HexToDec()+","+arguments[1].substring(1,3).HexToDec()+","+arguments[1].substring(5).HexToDec()+")";
model_tmp2=model_tmp2.toUpperCase();
if(color_tmp==model_tmp1 ||color_tmp==model_tmp2)
{
return true;
}
return false;
}
function $V()
{
return $(arguments[0]).value;
}
function fPopCalendar(evt,popCtrl,dateCtrl)
{
evt.cancelBubble=true;
gdCtrl=dateCtrl;
fSetYearMon(giYear,giMonth);
var point=fGetXY(popCtrl);
with($("calendardiv").style)
{
left=point.x+"px";
top=(point.y+popCtrl.offsetHeight+1)+"px";
visibility='visible';zindex='99';position='absolute';
}
$("calendardiv").focus();
}
function fSetDate(iYear,iMonth,iDay)
{
var iMonthNew=new String(iMonth);
var iDayNew=new String(iDay);
if(iMonthNew.length<2)
{
iMonthNew="0"+iMonthNew;
}
if(iDayNew.length<2)
{
iDayNew="0"+iDayNew;
}
gdCtrl.value=iYear+splitChar+iMonthNew+splitChar+iDayNew;fHideCalendar();
}
function fHideCalendar()
{
$("calendardiv").style.visibility="hidden";

for(var i=0;i<goSelectTag.length;i++)
{
goSelectTag[i].style.visibility="visible";
}
goSelectTag.length=0;
}
function fSetSelected()
{
var iOffset=0;
var iYear=parseInt($("tbSelYear").value);
var iMonth=parseInt($("tbSelMonth").value);
var aCell=$("cellText"+arguments[0]);
aCell.bgColor=gcMouseOut;
with(aCell)
{
var iDay=parseInt(innerHTML);

if(checkColor(style.color,gcNotCurMonth))
{
iOffset=(innerHTML>10)?-1:1;
}
iMonth+=iOffset;

if(iMonth<1)
{
iYear--;iMonth=12;
}
else if(iMonth>12)
{
iYear++;iMonth=1;
}
}
fSetDate(iYear,iMonth,iDay);
}
function Point(iX,iY)
{
this.x=iX;
this.y=iY;
}
function fBuildCal(iYear,iMonth)
{
var aMonth=new Array();
for(var i=1;i<7;i++)
{
aMonth[i]=new Array(i);
}
var dCalDate=new Date(iYear,iMonth-1,1);
var iDayOfFirst=dCalDate.getDay();
var iDaysInMonth=new Date(iYear,iMonth,0).getDate();
var iOffsetLast=new Date(iYear,iMonth-1,0).getDate()-iDayOfFirst+1;
var iDate=1;
var iNext=1;
for(var d=0;d<7;d++)
{
aMonth[1][d]=(d<iDayOfFirst)?(iOffsetLast+d)*(-1):
iDate++;
}
for(var w=2;w<7;w++)
{
for(var d=0;d<7;d++)
{
aMonth[w][d]=(iDate<=iDaysInMonth)?iDate++:(iNext++)*(-1);
}
}
return aMonth;
}
function fDrawCal(iYear,iMonth,iCellHeight,iDateTextSize)
{
var colorTD=" bgcolor='"+gcMouseOut+"' bordercolor='"+gcMouseOut+"'";
var styleTD=" valign='middle' align='center' style='height:"+iCellHeight+"px;font-weight:bolder;font-size:"+iDateTextSize+"px;";
var dateCal="";
dateCal+="<tr>";
for(var i=0;i<7;i++)
{
dateCal+="<td"+colorTD+styleTD+"color:#990099'>"+WeekDay[i]+"</td>";
}
dateCal+="</tr>";

for(var w=1;w<7;w++)
{
dateCal+="<tr>";

for(var d=0;d<7;d++)
{
var tmpid=w+""+d;
dateCal+="<td"+styleTD+"cursor:pointer;' onclick='fSetSelected("+tmpid+")'>";
dateCal+="<span id='cellText"+tmpid+"'></span>";
dateCal+="</td>";
}
dateCal+="</tr>";
}
return dateCal;
}
function fUpdateCal(iYear,iMonth)
{
var myMonth=fBuildCal(iYear,iMonth);
var i=0;
for(var w=1;w<7;w++)
{
for(var d=0;d<7;d++)
{
with($("cellText"+w+""+d))
{
parentNode.bgColor=gcMouseOut;parentNode.borderColor=gcMouseOut;

parentNode.onmouseover=function()
{
this.bgColor=gcMouseOver;
};

parentNode.onmouseout=function()
{
this.bgColor=gcMouseOut;
};

if(myMonth[w][d]<0)
{
style.color=gcNotCurMonth;
innerHTML=Math.abs(myMonth[w][d]);
}
else
{
style.color=((d==0)||(d==6))?gcRestDay:gcWorkDay;

innerHTML=myMonth[w][d];

if(iYear==giYear && iMonth==giMonth && myMonth[w][d]==giDay)
{
style.color=gcToday;parentNode.bgColor=gcTodayMouseOut;

parentNode.onmouseover=function()
{
this.bgColor=gcTodayMouseOver;
};
parentNode.onmouseout=function()
{
this.bgColor=gcTodayMouseOut;
};

}
}
}
}
}
}
function fSetYearMon(iYear,iMon)
{
$("tbSelMonth").options[iMon-1].selected=true;

for(var i=0;i<$("tbSelYear").length;i++)
{
if($("tbSelYear").options[i].value==iYear)
{
$("tbSelYear").options[i].selected=true;
}
}

fUpdateCal(iYear,iMon);
}
function fPrevMonth()
{
var iMon=$("tbSelMonth").value;

var iYear=$("tbSelYear").value;

if(--iMon<1)
{
iMon=12;
iYear--;
}
fSetYearMon(iYear,iMon);
}
function fNextMonth()
{
var iMon=$("tbSelMonth").value;
var iYear=$("tbSelYear").value;
if(++iMon>12)
{
iMon=1;
iYear++;
}
fSetYearMon(iYear,iMon);
}
function fGetXY(aTag)
{
var oTmp=aTag;

var pt=new Point(0,0);
do
{
pt.x+=oTmp.offsetLeft;
pt.y+=oTmp.offsetTop;
oTmp=oTmp.offsetParent;
}
while(oTmp.tagName.toUpperCase()!="BODY");

return pt;
}
function getDateDiv()
{
var noSelectForIE="";
var noSelectForFireFox="";
if(document.all)
{
noSelectForIE="onselectstart='return false;'";
}
else
{
noSelectForFireFox="-moz-user-select:none;";
}
var dateDiv="";
dateDiv+="<div id='calendardiv' onclick='event.cancelBubble=true' "+noSelectForIE+" style='"+noSelectForFireFox+"position:absolute;z-index:99;visibility:hidden;border:1px solid #999999;'>";dateDiv+="<table border='0' bgcolor='#E0E0E0' cellpadding='1' cellspacing='1' >";dateDiv+="<tr>";
dateDiv+="<td><input type='button' id='PrevMonth' value='<' style='height:20px;width:20px;font-weight:bolder;' onclick='fPrevMonth()'>";
dateDiv+="</td><td><select id='tbSelYear' style='border:1px solid;' onchange='fUpdateCal($V(/"tbSelYear/"),$V(/"tbSelMonth/"))'>";
for(var i=startYear;i<endYear;i++)
{
dateDiv+="<option value='"+i+"'>"+i+strYear+"</option>";}dateDiv+="</select></td><td>";
dateDiv+="<select id='tbSelMonth' style='border:1px solid;' onchange='fUpdateCal($V(/"tbSelYear/"),$V(/"tbSelMonth/"))'>";
for(var i=0;i<12;i++)
{
dateDiv+="<option value='"+(i+1)+"'>"+gMonths[i]+"</option>";
}
dateDiv+="</select></td><td>";
dateDiv+="<input type='button' id='NextMonth' value='>' style='height:20px;width:20px;font-weight:bolder;' onclick='fNextMonth()'>";
dateDiv+="</td>";
dateDiv+="</tr><tr>";
dateDiv+="<td align='center' colspan='4'>";
dateDiv+="<div style='background-color:#cccccc'><table width='100%' border='0' cellpadding='3' cellspacing='1'>";
dateDiv+=fDrawCal(giYear,giMonth,dayTdHeight,dayTdTextSize);
dateDiv+="</table></div>";
dateDiv+="</td>";
dateDiv+="</tr><tr><td align='center' colspan='4' nowrap>";
dateDiv+="<span style='cursor:pointer;font-weight:bolder;' onclick='fSetDate(giYear,giMonth,giDay)' onmouseover='this.style.color=/""+gcMouseOver+"/"' onmouseout='this.style.color=/"#000000/"'>"+strToday+":"+giYear+strYear+giMonth+strMonth+giDay+strDay+"</span>";
dateDiv+="</tr></tr>";dateDiv+="</table></div>";

return dateDiv;

}
with(document)
{
onclick=fHideCalendar;
write(getDateDiv());
}
</script>

input type="text" style="border: 1px solid #cccccc;" size="15" runat="server" onclick="fPopCalendar(event,this,this)"
onfocus="this.select()" readonly="readonly" />