这个是一个JAavaScript脚本。我想修改下输出的格式，怎么改都不行，还请各位帮忙。
要改成后面红框框这样的格式

<script language="javascript">
<!--
var oCalendarEn=new PopupCalendar("oCalendarEn"); //初始化控件时,请给出实例名称如:oCalendarEn
oCalendarEn.Init();


var oCalendarChs=new PopupCalendar("oCalendarChs"); //初始化控件时,请给出实例名称:oCalendarChs
oCalendarChs.weekDaySting=new Array("日","一","二","三","四","五","六");
oCalendarChs.monthSting=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");
oCalendarChs.oBtnTodayTitle="今天";
oCalendarChs.oBtnCancelTitle="取消";
oCalendarChs.Init();


function checkform(myform)
{
if(myform.起始日期.value=='')
{
   alert("起始日期不能为空!");
   myform.起始日期.focus();
   return false;
}
if(myform.结束日期.value=='')
{
   alert("结束日期不能为空!");
   myform.结束日期.focus();
   return false;
}
}
function PopupCalendar(InstanceName)
{
///Global Tag
this.instanceName=InstanceName;
///Properties
this.separator=""
this.oBtnTodayTitle="Today"
this.oBtnCancelTitle="Cancel"
this.weekDaySting=new Array("S","M","T","W","T","F","S");
this.monthSting=new Array("January","February","March","April","May","June","July","August","September","October","November","December");
this.Width=200;
this.currDate=new Date();
this.today=new Date();
this.startYear=2008;
this.endYear=2020;
///Css
this.normalfontColor="#666666";
this.selectedfontColor="red";
this.divBorderCss="1px solid #BCD0DE";
this.titleTableBgColor="#98B8CD";
this.tableBorderColor="#CCCCCC"
///Method
this.Init=CalendarInit;
this.Fill=CalendarFill;
this.Refresh=CalendarRefresh;
this.Restore=CalendarRestore;
///HTMLObject
this.oTaget=null;
this.oPreviousCell=null;
this.sDIVID=InstanceName+"_Div";
this.sTABLEID=InstanceName+"_Table";
this.sMONTHID=InstanceName+"_Month";
this.sYEARID=InstanceName+"_Year";
this.sTODAYBTNID=InstanceName+"_TODAYBTN";

}
function CalendarInit()    ///Create panel
{
var sMonth,sYear
sMonth=this.currDate.getMonth();
sYear=this.currDate.getYear();
htmlAll="<iframe style='position:absolute;z-index:9;width:expression(this.nextSibling.offsetWidth);height:expression(this.nextSibling.offsetHeight);top:expression(this.nextSibling.offsetTop);left:expression(this.nextSibling.offsetLeft);' frameborder='0' ></iframe><div id='"+this.sDIVID+"' style='display:none;position:absolute;width:"+this.Width+"px;border:"+this.divBorderCss+";padding:2px;background-color:#FFFFFF;z-index:10;'>";
htmlAll+="<div align='center'>";
/// Month
htmloMonth="<select id='"+this.sMONTHID+"' onchange=CalendarMonthChange("+this.instanceName+") style='width:50%'>";
for(i=0;i<12;i++)
{  
htmloMonth+="<option value='"+i+"'>"+this.monthSting[i]+"</option>";
}
htmloMonth+="</select>";
/// Year
htmloYear="<select id='"+this.sYEARID+"' onchange=CalendarYearChange("+this.instanceName+") style='width:50%'>";
for(i=this.startYear;i<=this.endYear;i++)
{
htmloYear+="<option value='"+i+"'>"+i+"</option>";
}
htmloYear+="</select></div>";
/// Day
htmloDayTable="<table id='"+this.sTABLEID+"' width='100%' border=0 cellpadding=0 cellspacing=1 bgcolor='"+this.tableBorderColor+"'>";
htmloDayTable+="<tbody bgcolor='#ffffff'style='font-size:13px'>";
for(i=0;i<=6;i++)
{
if(i==0)
   htmloDayTable+="<tr bgcolor='" + this.titleTableBgColor + "'>";
else
   htmloDayTable+="<tr>";
for(j=0;j<7;j++)
{

   if(i==0)
   {
    htmloDayTable+="<td height='20' align='center' valign='middle' style='cursor:hand'>";
    htmloDayTable+=this.weekDaySting[j]+"</td>"
   }
   else
   {
    htmloDayTable+="<td height='20' align='center' valign='middle' style='cursor:hand'";
    htmloDayTable+=" onmouseover=CalendarCellsMsOver("+this.instanceName+")";
    htmloDayTable+=" onmouseout=CalendarCellsMsOut("+this.instanceName+")";
    htmloDayTable+=" onclick=CalendarCellsClick(this,"+this.instanceName+")>";
    htmloDayTable+="&nbsp;</td>"
   }
}
htmloDayTable+="</tr>";
}
htmloDayTable+="</tbody></table>";
/// Today Button
htmloButton="<div align='center' style='padding:3px'>"
htmloButton+="<button id='"+this.sTODAYBTNID+"' style='width:40%;border:1px solid #BCD0DE;background-color:#eeeeee;cursor:hand'"
htmloButton+=" onclick=CalendarTodayClick("+this.instanceName+")>"+this.oBtnTodayTitle+"</button>&nbsp;"
htmloButton+="<button style='width:40%;border:1px solid #BCD0DE;background-color:#eeeeee;cursor:hand'"
htmloButton+=" onclick=CalendarCancel("+this.instanceName+")>"+this.oBtnCancelTitle+"</button> "
htmloButton+="</div>"
/// All
htmlAll=htmlAll+htmloMonth+htmloYear+htmloDayTable+htmloButton+"</div>";
document.write(htmlAll);
this.Fill();
}
function CalendarFill()   ///
{
var sMonth,sYear,sWeekDay,sToday,oTable,currRow,MaxDay,iDaySn,sIndex,rowIndex,cellIndex,oSelectMonth,oSelectYear
sMonth=this.currDate.getMonth();
sYear=this.currDate.getYear();
sWeekDay=(new Date(sYear,sMonth,1)).getDay();
sToday=this.currDate.getDate();
iDaySn=1
oTable=document.all[this.sTABLEID];
currRow=oTable.rows[1];
MaxDay=CalendarGetMaxDay(sYear,sMonth);

oSelectMonth=document.all[this.sMONTHID]
oSelectMonth.selectedIndex=sMonth;
oSelectYear=document.all[this.sYEARID]
for(i=0;i<oSelectYear.length;i++)
{
if(parseInt(oSelectYear.options[i].value)==sYear)oSelectYear.selectedIndex=i;
}
////
for(rowIndex=1;rowIndex<=6;rowIndex++)
{
if(iDaySn>MaxDay)break;
currRow = oTable.rows[rowIndex];
cellIndex = 0;
if(rowIndex==1)cellIndex = sWeekDay;
for(;cellIndex<currRow.cells.length;cellIndex++)
{
   if(iDaySn==sToday)
   {
    currRow.cells[cellIndex].innerHTML="<font color='"+this.selectedfontColor+"'><i><b>"+iDaySn+"</b></i></font>";
    this.oPreviousCell=currRow.cells[cellIndex];
   }
   else
   {
    currRow.cells[cellIndex].innerHTML=iDaySn;
    currRow.cells[cellIndex].style.color=this.normalfontColor;
   }
   CalendarCellSetCss(0,currRow.cells[cellIndex]);
   iDaySn++;
   if(iDaySn>MaxDay)break;
}
}
}
function CalendarRestore()     /// Clear Data
{
var i,j,oTable
oTable=document.all[this.sTABLEID]
for(i=1;i<oTable.rows.length;i++)
{
for(j=0;j<oTable.rows[i].cells.length;j++)
{
   CalendarCellSetCss(0,oTable.rows[i].cells[j]);
   oTable.rows[i].cells[j].innerHTML="&nbsp;";
}
}
}
function CalendarRefresh(newDate)     ///
{
this.currDate=newDate;
this.Restore();
this.Fill();
}
function CalendarCellsMsOver(oInstance)    /// Cell MouseOver
{
var myCell = event.srcElement;
CalendarCellSetCss(0,oInstance.oPreviousCell);
if(myCell)
{
CalendarCellSetCss(1,myCell);
oInstance.oPreviousCell=myCell;
}
}
function CalendarCellsMsOut(oInstance)    ////// Cell MouseOut
{
var myCell = event.srcElement;
CalendarCellSetCss(0,myCell);
}
function CalendarYearChange(oInstance)    /// Year Change
{
var sDay,sMonth,sYear,newDate
sDay=oInstance.currDate.getDate();
sMonth=oInstance.currDate.getMonth();
sYear=document.all[oInstance.sYEARID].value
newDate=new Date(sYear,sMonth,sDay);
oInstance.Refresh(newDate);
}
function CalendarMonthChange(oInstance)    /// Month Change
{
var sDay,sMonth,sYear,newDate
sDay=oInstance.currDate.getDate();
sMonth=document.all[oInstance.sMONTHID].value
sYear=oInstance.currDate.getYear();
newDate=new Date(sYear,sMonth,sDay);
oInstance.Refresh(newDate);
}
function CalendarCellsClick(oCell,oInstance)
{
var sDay,sMonth,sYear,newDate
sYear=oInstance.currDate.getFullYear();
sMonth=oInstance.currDate.getMonth();
sDay=oInstance.currDate.getDate();
if(oCell.innerText!=" ")
{
sDay=parseInt(oCell.innerText);
if(sDay!=oInstance.currDate.getDate())
{
   newDate=new Date(sYear,sMonth,sDay);
   oInstance.Refresh(newDate);
}
}
sDateString=sYear+oInstance.separator+CalendarDblNum(sMonth+1)+oInstance.separator+CalendarDblNum(sDay); ///return sDateString
if(oInstance.oTaget.tagName.toLowerCase()=="input")oInstance.oTaget.value = sDateString;
CalendarCancel(oInstance);
return sDateString;
}
function CalendarTodayClick(oInstance)    /// "Today" button Change
{
oInstance.Refresh(new Date());
}
function getDateString(oInputSrc,oInstance)
{
if(oInputSrc&&oInstance)
{
var CalendarDiv=document.all[oInstance.sDIVID];
oInstance.oTaget=oInputSrc;
CalendarDiv.style.pixelLeft=CalendargetPos(oInputSrc,"Left");
CalendarDiv.style.pixelTop=CalendargetPos(oInputSrc,"Top") + oInputSrc.offsetHeight;
CalendarDiv.style.display=(CalendarDiv.style.display=="none")?"":"none";
}
}
function CalendarCellSetCss(sMode,oCell)   /// Set Cell Css
{
// sMode
// 0: OnMouserOut 1: OnMouseOver
if(sMode)
{
oCell.style.border="1px solid #5589AA";
oCell.style.backgroundColor="#BCD0DE";
}
else
{
oCell.style.border="1px solid #FFFFFF";
oCell.style.backgroundColor="#FFFFFF";
}
}
function CalendarGetMaxDay(nowYear,nowMonth)   /// Get MaxDay of current month
{
var nextMonth,nextYear,currDate,nextDate,theMaxDay
nextMonth=nowMonth+1;
if(nextMonth>11)
{
nextYear=nowYear+1;
nextMonth=0;
}
else
{
nextYear=nowYear;
}
currDate=new Date(nowYear,nowMonth,1);
nextDate=new Date(nextYear,nextMonth,1);
theMaxDay=(nextDate-currDate)/(24*60*60*1000);
return theMaxDay;
}
function CalendargetPos(el,ePro)    /// Get Absolute Position
{
var ePos=0;
while(el!=null)
{
ePos+=el["offset"+ePro];
el=el.offsetParent;
}
return ePos;
}
function CalendarDblNum(num)
{
if(num < 10)
return "0"+num;
else
return num;
}
function CalendarCancel(oInstance)   ///Cancel
{
var CalendarDiv=document.all[oInstance.sDIVID];
CalendarDiv.style.display="none";
}

function MM_goToURL() { //v3.0
var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
window.open(theURL,winName,features);
}
//-->
</script>
   

///Properties
this.separator=""

改为
///Properties
this.separator="-";

非常感谢