asp.net的一个日期控件（带验证）

/*
  asp.net日期控件使用说明：
  以下部分在中
  <SCRIPT src="res/JS.js"></SCRIPT>
  <SCRIPT language="JavaScript">
  dateFormat='yyyy-mm-dd'
  ImageUrl="image/"
  AlertMsg = "您输入的格式错误!"
  </SCRIPT>
  
  以下部分在需要填写日期的框中（下面的ControlName必须替换）：
  onmousedown ='javascsript:ControlName.value="";'
  onblur='javascript:DateFormatTest(Form1.ControlName,dateFormat,AlertMsg);'
  onClick='javascript:popUpCalendar(this,Form1.ControlName,dateFormat,-1,-1,ImageUrl);'
  
  马骏版权所有
  如果使用或转载，请保留版权信息。谢谢！
*/

 if(typeof vLangue == 'undefined')
  vLangue = 1
 if(typeof vWeekManagement == 'undefined')
  vWeekManagement = 1
  
 
 
 var fixedX = -1     // x position (-1 if to appear below control)
 var fixedY = -1     // y position (-1 if to appear below control)
 var startAt = parseFloat(vWeekManagement)   // 0 - sunday ; 1 - monday
 var showWeekNumber = 1   // 0 - don't show; 1 - show
 var showToday = 1    // 0 - don't show; 1 - show
 var imgDir = ""     // directory for images ... e.g. var imgDir="/img/"

 //
 var gotoString = "回到当前月份."
 var todayString = "今天是"
 var weekString = "周"
 var scrollLeftMessage = "点击选择上一个月，停在上面自定滚动月."
 var scrollRightMessage = "点击选择下一个月，停在上面自定滚动月."
 var selectMonthMessage = "点击选择月"
 var selectYearMessage = "点击选择年"
 var selectDateMessage = "选择了[date]." // do not replace [date], it will be replaced by date.
 var altCloseCalendar = "关闭"
 var monthName = 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") 
 
 dayName = new Array ("日","一","二","三","四","五","六")
 dayName2 = new Array ("星期天","星期一","星期二","星期三","星期四","星期五","星期六")
 arrTemp = dayName.slice(startAt,7)
 dayName = arrTemp.concat(dayName.slice(0,startAt))
 
  //颜色选择区
 var topTableBorderColor="#abdcf6"
 var topTableBorderInSideColor="#abdcf6"
 var TitleBgColor = "#abdcf6"
 var ButtomBgColor = "#abdcf6"
 var MainTablebgColor = "#ffffff"
 var TableBorderColor = "#ffffff"
 var CloseColor = "#fffff"
  
 if (vLangue==0) //FRENCH
  {
  }
 
 var crossobj, crossMonthObj, crossYearObj, monthSelected, yearSelected, dateSelected, omonthSelected, oyearSelected, odateSelected, monthConstructed, yearConstructed, intervalID1, intervalID2, timeoutID1, timeoutID2, ctlToPlaceValue, ctlNow, dateFormat, nStartingYear

 var bPageLoaded=false
 var ie=document.all
 var dom=document.getElementById

 var ns4=document.layers
 var today = new Date()
 var dateNow  = today.getDate()
 var monthNow = today.getMonth()
 var yearNow  = today.getYear()
 var imgsrc = new Array("drop1.gif","drop2.gif","left1.gif","left2.gif","right1.gif","right2.gif","close.gif")
 var img = new Array()

 var bShow = false;

    /* hides <select> and <applet> objects (for IE only) */
    function hideElement( elmID, overDiv )
    {
      if( ie )
      {
        for( i = 0; i < document.all.tags( elmID ).length; i++ )
        {
          obj = document.all.tags( elmID )[i];
          if( !obj || !obj.offsetParent )
          {
            continue;
          }
     
          // Find the element's offsetTop and offsetLeft relative to the BODY tag.
          objLeft   = obj.offsetLeft;
          objTop    = obj.offsetTop;
          objParent = obj.offsetParent;
         
          while( objParent.tagName.toUpperCase() != "BODY" )
          {
            objLeft  += objParent.offsetLeft;
            objTop   += objParent.offsetTop;
            objParent = objParent.offsetParent;
          }
     
          objHeight = obj.offsetHeight;
          objWidth = obj.offsetWidth;
     
          if(( overDiv.offsetLeft + overDiv.offsetWidth ) <= objLeft );
          else if(( overDiv.offsetTop + overDiv.offsetHeight ) <= objTop );
          else if( overDiv.offsetTop >= ( objTop + objHeight ));
          else if( overDiv.offsetLeft >= ( objLeft + objWidth ));
          else
          {
            obj.style.visibility = "hidden";
          }
        }
      }
    }
    
    /*
    * unhides <select> and <applet> objects (for IE only)
    */
    function showElement( elmID )
    {
      if( ie )
      {
        for( i = 0; i < document.all.tags( elmID ).length; i++ )
        {
          obj = document.all.tags( elmID )[i];
         
          if( !obj || !obj.offsetParent )
          {
            continue;
          }
       
          obj.style.visibility = "";
        }
      }
    }

 function HolidayRec (d, m, y, desc)
 {
  this.d = d
  this.m = m
  this.y = y
  this.desc = desc
 }

 var HolidaysCounter = 0
 var Holidays = new Array()

 function addHoliday (d, m, y, desc)
 {
  Holidays[HolidaysCounter++] = new HolidayRec ( d, m, y, desc )
 }

 if (dom)
 {
  for (i=0;i<imgsrc.length;i++)
  {
   img[i] = new Image
   img[i].src = imgDir + imgsrc[i]
  }
  document.write ("<div onclick='bShow=true' id='calendar'style='z-index:+999;position:absolute;visibility:hidden;'><table width="+((showWeekNumber==1)?250:220)+" style='font-family:宋体,arial;font-size:11px;border-width:1;border-style:solid;border-color:"+topTableBorderColor+";font-family:宋体,arial; font-size:11px}' bgcolor='"+topTableBorderInSideColor+"'><tr bgcolor='"+TitleBgColor+"'><td><table width='"+((showWeekNumber==1)?248:218)+"'><tr><td style='padding:2px;font-family:宋体,arial; font-size:11px;'><font color='#000000'><B><span id='caption'></span></B></font></td><td align=right><font color='#ffffff'><a href='javascript:hideCalendar()' style='COLOR:"+CloseColor+"; TEXT-DECORATION: none'>X</a></font></td></tr></table></td></tr><tr><td style='padding:5px' bgcolor='"+MainTablebgColor+"'><span id='content'></span></td></tr>")
   
  if (showToday==1)
  {
   document.write ("<tr bgcolor="+ButtomBgColor+"><td style='padding:5px' align=center><span id='lblToday'></span></td></tr>")
  }
   
  document.write ("</table></div><div id='selectMonth' style='z-index:+999;position:absolute;visibility:hidden;'></div><div id='selectYear' style='z-index:+999;position:absolute;visibility:hidden;'></div>");
 }

 var styleAnchor="text-decoration:none;color:black;"
 var styleLightBorder="border-style:solid;border-width:1px;border-color:#a0a0a0;"

 function swapImage(srcImg, destImg){
  if (ie) { document.getElementById(srcImg).setAttribute("src",imgDir + destImg) }
 }

 function init() {
  if (!ns4)
  {
   if (!ie) { yearNow += 1900 }

   crossobj=(dom)?document.getElementById("calendar").style : ie? document.all.calendar : document.calendar
   hideCalendar()

   crossMonthObj=(dom)?document.getElementById("selectMonth").style : ie? document.all.selectMonth : document.selectMonth

   crossYearObj=(dom)?document.getElementById("selectYear").style : ie? document.all.selectYear : document.selectYear

   monthConstructed=false;
   yearConstructed=false;

   if (showToday==1)
   {
    if (vLangue)
     document.getElementById("lblToday").innerHTML =todayString+" <a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+dayName2[firstdayofweek(today.getDay())]+", " + yearNow + "年 " + monthName[monthNow].substring(0,3) + " " +dateNow+ "日</a>"
    else
     document.getElementById("lblToday").innerHTML =todayString+" <a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+fullDayName[firstdayofweek(today.getDay())]+" le " + ((dateNow==1)?"1^er":dateNow) + " " + monthName[monthNow].toLowerCase() + " " + yearNow + "</a>"
   }

   sHTML1="<span id='spanLeft' style='border-style:solid;border-width:1;border-color:"+TableBorderColor+";cursor:pointer' onmouseover='swapImage(\"changeLeft\",\"left2.gif\");this.style.borderColor=\"#045e5e\";window.status=\""+scrollLeftMessage+"\"' onclick='javascript:decMonth()' onmouseout='clearInterval(intervalID1);swapImage(\"changeLeft\",\"left1.gif\");this.style.borderColor=\"#eaf8e9\";window.status=\"\"' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartDecMonth()\",500)' onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'>&nbsp<IMG id='changeLeft' src=\""+imgDir+"left1.gif\" width=10 height=11 BORDER=0>&nbsp</span>&nbsp;"
   sHTML1+="<span id='spanRight' style='border-style:solid;border-width:1;border-color:"+TableBorderColor+";cursor:pointer' onmouseover='swapImage(\"changeRight\",\"right2.gif\");this.style.borderColor=\"#045e5e\";window.status=\""+scrollRightMessage+"\"' onmouseout='clearInterval(intervalID1);swapImage(\"changeRight\",\"right1.gif\");this.style.borderColor=\"#eaf8e9\";window.status=\"\"' onclick='incMonth()' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartIncMonth()\",500)' onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'>&nbsp<IMG id='changeRight' src=\""+imgDir+"right1.gif\" width=10 height=11 BORDER=0>&nbsp</span>&nbsp"
   sHTML1+="<span id='spanMonth' style='border-style:solid;border-width:1;border-color:"+TableBorderColor+";cursor:pointer' onmouseover='swapImage(\"changeMonth\",\"drop2.gif\");this.style.borderColor=\"#045e5e\";window.status=\""+selectMonthMessage+"\"' onmouseout='swapImage(\"changeMonth\",\"drop1.gif\");this.style.borderColor=\"#eaf8e9\";window.status=\"\"' onclick='popUpMonth()'></span>&nbsp;"
   sHTML1+="<span id='spanYear' style='border-style:solid;border-width:1;border-color:"+TableBorderColor+";cursor:pointer' onmouseover='swapImage(\"changeYear\",\"drop2.gif\");this.style.borderColor=\"#045e5e\";window.status=\""+selectYearMessage+"\"' onmouseout='swapImage(\"changeYear\",\"drop1.gif\");this.style.borderColor=\"#eaf8e9\";window.status=\"\"' onclick='popUpYear()'></span>&nbsp;"
   
   document.getElementById("caption").innerHTML  = sHTML1

   bPageLoaded=true
  }
 }
 function firstdayofweek(day)
 {
 day -= startAt
 if (day < 0){day = 7 + day}
 return day
 }

 function hideCalendar() {
  crossobj.visibility="hidden"
  if (crossMonthObj != null){crossMonthObj.visibility="hidden"}
  if (crossYearObj != null){crossYearObj.visibility="hidden"}

     showElement( 'SELECT' );
  showElement( 'APPLET' );
 }

 function padZero(num) {
  return (num < 10)? '0' + num : num ;
 }

 function constructDate(d,m,y)
 {
  sTmp = dateFormat
  sTmp = sTmp.replace ("dd","<e>")
  sTmp = sTmp.replace ("d","<d>")
  sTmp = sTmp.replace ("<e>",padZero(d))
  sTmp = sTmp.replace ("<d>",d)
  sTmp = sTmp.replace ("mmm","<o>")
  sTmp = sTmp.replace ("mm","<n>")
  sTmp = sTmp.replace ("m","<m>")
  sTmp = sTmp.replace ("<m>",m+1)
  sTmp = sTmp.replace ("<n>",padZero(m+1))
  sTmp = sTmp.replace ("<o>",monthName[m])
  return sTmp.replace ("yyyy",y)
 }

 function closeCalendar() {
  var sTmp

  hideCalendar();
  // ctlToPlaceValue.value.
  ctlToPlaceValue.value = constructDate(dateSelected,monthSelected,yearSelected)
 }

 /*** Month Pulldown ***/

 function StartDecMonth()
 {
  intervalID1=setInterval("decMonth()",80)
 }

 function StartIncMonth()
 {
  intervalID1=setInterval("incMonth()",80)
 }

 function incMonth () {
  monthSelected++
  if (monthSelected>11) {
   monthSelected=0
   yearSelected++
  }
  constructCalendar()
 }

 function decMonth () {
  monthSelected--
  if (monthSelected<0) {
   monthSelected=11
   yearSelected--
  }
  constructCalendar()
 }

 function constructMonth() {
  popDownYear()
  if (!monthConstructed) {
   sHTML = ""
   for (i=0; i<12; i++) {
    sName = monthName[i];
    if (i==monthSelected){
     sName = "<B>" + sName + "</B>"
    }
    sHTML += "<tr><td id='m" + i + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='monthConstructed=false;monthSelected=" + i + ";constructCalendar();popDownMonth();event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
   }

   document.getElementById("selectMonth").innerHTML = "<table width=70 style='font-family:宋体,arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;' bgcolor='#FFFFDD' cellspacing=0 onmouseover='clearTimeout(timeoutID1)' onmouseout='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"popDownMonth()\",100);event.cancelBubble=true'>" + sHTML + "</table>"

   monthConstructed=true
  }
 }

 function popUpMonth() {
  constructMonth()
  crossMonthObj.visibility = (dom||ie)? "visible" : "show"
  crossMonthObj.left = parseInt(crossobj.left) + 50
  crossMonthObj.top = parseInt(crossobj.top) + 26

  hideElement( 'SELECT', document.getElementById("selectMonth") );
  hideElement( 'APPLET', document.getElementById("selectMonth") );   
 }

 function popDownMonth() {
  crossMonthObj.visibility= "hidden"
 }

 /*** Year Pulldown ***/

 function incYear() {
  for (i=0; i<7; i++){
   newYear = (i+nStartingYear)+1
   if (newYear==yearSelected)
   { txtYear = "&nbsp;<B>" + newYear + "</B>&nbsp;" }
   else
   { txtYear = "&nbsp;" + newYear + "&nbsp;" }
   document.getElementById("y"+i).innerHTML = txtYear
  }
  nStartingYear ++;
  bShow=true
 }

 function decYear() {
  for (i=0; i<7; i++){
   newYear = (i+nStartingYear)-1
   if (newYear==yearSelected)
   { txtYear = "&nbsp;<B>" + newYear + "</B>&nbsp;" }
   else
   { txtYear = "&nbsp;" + newYear + "&nbsp;" }
   document.getElementById("y"+i).innerHTML = txtYear
  }
  nStartingYear --;
  bShow=true
 }

 function selectYear(nYear) {
  yearSelected=parseInt(nYear+nStartingYear);
  yearConstructed=false;
  constructCalendar();
  popDownYear();
 }

 function constructYear() {
  popDownMonth()
  sHTML = ""
  if (!yearConstructed) {

   sHTML = "<tr><td align='center' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='clearInterval(intervalID1);this.style.backgroundColor=\"\"' style='cursor:pointer' onmousedown='clearInterval(intervalID1);intervalID1=setInterval(\"decYear()\",30)' onmouseup='clearInterval(intervalID1)'>-</td></tr>"

   j = 0
   nStartingYear = yearSelected-3
   for (i=(yearSelected-3); i<=(yearSelected+3); i++) {
    sName = i;
    if (i==yearSelected){
     sName = "<B>" + sName + "</B>"
    }

    sHTML += "<tr><td id='y" + j + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='selectYear("+j+");event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
    j ++;
   }

   sHTML += "<tr><td align='center' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='clearInterval(intervalID2);this.style.backgroundColor=\"\"' style='cursor:pointer' onmousedown='clearInterval(intervalID2);intervalID2=setInterval(\"incYear()\",30)' onmouseup='clearInterval(intervalID2)'>+</td></tr>"

   document.getElementById("selectYear").innerHTML = "<table width=44 style='font-family:宋体,arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;' bgcolor='#FFFFDD' onmouseover='clearTimeout(timeoutID2)' onmouseout='clearTimeout(timeoutID2);timeoutID2=setTimeout(\"popDownYear()\",100)' cellspacing=0>" + sHTML + "</table>"

   yearConstructed = true
  }
 }

 function popDownYear() {
  clearInterval(intervalID1)
  clearTimeout(timeoutID1)
  clearInterval(intervalID2)
  clearTimeout(timeoutID2)
  crossYearObj.visibility= "hidden"
 }

 function popUpYear() {
  var leftOffset

  constructYear()
  crossYearObj.visibility = (dom||ie)? "visible" : "show"
  leftOffset = parseInt(crossobj.left) + document.getElementById("spanYear").offsetLeft
  if (ie)
  {
   leftOffset += 6
  }
  crossYearObj.left = leftOffset
  crossYearObj.top = parseInt(crossobj.top) + 26
 }

 /*** calendar ***/
   function WeekNbr(n) {
      // Algorithm used:
      // From Klaus Tondering's Calendar document (The Authority/Guru)
      // hhtp://www.tondering.dk/claus/calendar.html
      // a = (14-month) / 12
      // y = year + 4800 - a
      // m = month + 12a - 3
      // J = day + (153m + 2) / 5 + 365y + y / 4 - y / 100 + y / 400 - 32045
      // d4 = (J + 31741 - (J mod 7)) mod 146097 mod 36524 mod 1461
      // L = d4 / 1460
      // d1 = ((d4 - L) mod 365) + L
      // WeekNumber = d1 / 7 + 1
 
      year = n.getFullYear();
      month = n.getMonth() + 1;
   /*
      if (startAt == 0) {
         day = n.getDate() + 1;
      }
      else {
         day = n.getDate();
      }*/
   day = n.getDate() + 1-startAt;
 
      a = Math.floor((14-month) / 12);
      y = year + 4800 - a;
      m = month + 12 * a - 3;
      b = Math.floor(y/4) - Math.floor(y/100) + Math.floor(y/400);
      J = day + Math.floor((153 * m + 2) / 5) + 365 * y + b - 32045;
      d4 = (((J + 31741 - (J % 7)) % 146097) % 36524) % 1461;
      L = Math.floor(d4 / 1460);
      d1 = ((d4 - L) % 365) + L;
      week = Math.floor(d1/7) + 1;
 
      return week;
   }

 function constructCalendar () {
  var aNumDays = Array (31,0,31,30,31,30,31,31,30,31,30,31)

  var dateMessage
  var startDate = new Date (yearSelected,monthSelected,1)
  var endDate

  if (monthSelected==1)
  {
   endDate = new Date (yearSelected,monthSelected+1,1);
   endDate = new Date (endDate - (24*60*60*1000));
   numDaysInMonth = endDate.getDate()
  }
  else
  {
   numDaysInMonth = aNumDays[monthSelected];
  }

  datePointer = 0
  //dayPointer = startDate.getDay()
  dayPointer = firstdayofweek(startDate.getDay())
  /*
  switch (startAt)
   {
   case (0): dayPointer = dayPointer
   break;
   case (1): dayPointer--
   break;
   case (6): dayPointer++
   break;
   } 
   */
  //dayPointer = startDate.getDay()// - startAt
  
  if (dayPointer<0)
  {
   //dayPointer = 6
  }

  sHTML = "<table  border=0 style='font-family:verdana;font-size:10px;'><tr>"

  if (showWeekNumber==1)
  {
   sHTML += "<td width=27><b>" + weekString + "</b></td><td width=1 rowspan=7 bgcolor='#d0d0d0' style='padding:0px'><img src='"+imgDir+"divider.gif' width=1></td>"
  }

  for (i=0; i<7; i++) {
   sHTML += "<td width='27' align='right'><B>"+ dayName[i]+"</B></td>"
  }
  sHTML +="</tr><tr>"
  
  if (showWeekNumber==1)
  {
   sHTML += "<td align=right>" + WeekNbr(startDate) + "&nbsp;</td>"
  }

  for ( var i=1; i<=dayPointer;i++ )
  {
   sHTML += "<td>&nbsp;</td>"
  }
 
  for ( datePointer=1; datePointer<=numDaysInMonth; datePointer++ )
  {
   dayPointer++;
   sHTML += "<td align=right>"
   sStyle=styleAnchor
   if ((datePointer==odateSelected) && (monthSelected==omonthSelected) && (yearSelected==oyearSelected))
   { sStyle+=styleLightBorder }

   sHint = ""
   for (k=0;k<HolidaysCounter;k++)
   {
    if ((parseInt(Holidays[k].d)==datePointer)&&(parseInt(Holidays[k].m)==(monthSelected+1)))
    {
     if ((parseInt(Holidays[k].y)==0)||((parseInt(Holidays[k].y)==yearSelected)&&(parseInt(Holidays[k].y)!=0)))
     {
      sStyle+="background-color:#FFDDDD;"
      sHint+=sHint==""?Holidays[k].desc:"\n"+Holidays[k].desc
     }
    }
   }

   var regexp= /\"/g
   sHint=sHint.replace(regexp,"&quot;")

   dateMessage = "onmousemove='window.status=\""+selectDateMessage.replace("[date]",constructDate(datePointer,monthSelected,yearSelected))+"\"' onmouseout='window.status=\"\"' "

   if ((datePointer==dateNow)&&(monthSelected==monthNow)&&(yearSelected==yearNow))
   { sHTML += "<b><a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer+";closeCalendar();'><font color=#ff0000>&nbsp;" + datePointer + "</font>&nbsp;</a></b>"}
   else if (dayPointer % 7 == (startAt * -1)+1)
   { sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'>&nbsp;<font color=#909090>" + datePointer + "</font>&nbsp;</a>" }
   else
   { sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'>&nbsp;" + datePointer + "&nbsp;</a>" }

   sHTML += ""
   if ((dayPointer+startAt) % 7 == startAt) {
    sHTML += "</tr><tr>"
    if ((showWeekNumber==1)&&(datePointer<numDaysInMonth))
    {
     sHTML += "<td align=right>" + (WeekNbr(new Date(yearSelected,monthSelected,datePointer+1))) + "&nbsp;</td>"
    }
   }
  }

  document.getElementById("content").innerHTML   = sHTML
  document.getElementById("spanMonth").innerHTML = "&nbsp;" + monthName[monthSelected] + "&nbsp;<IMG id='changeMonth' SRC='"+imgDir+"drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>"
  document.getElementById("spanYear").innerHTML = "&nbsp;" + yearSelected + "&nbsp;<IMG id='changeYear' SRC='"+imgDir+"drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>"
 }

 function popUpCalendar(ctl, ctl2, format, top, left,imgPath) {
  var leftpos = left
  var toppos = top
  imgDir = imgPath
  if (isNaN(left))
   leftpos = -235 //-208
   
  if (isNaN(top))
   toppos = 0

  if (bPageLoaded)
  {
   if ( crossobj.visibility == "hidden" ) {
    ctlToPlaceValue = ctl2
    dateFormat=format;

    formatChar = " "
    aFormat = dateFormat.split(formatChar)
    if (aFormat.length<3)
    {
     formatChar = "/"
     aFormat = dateFormat.split(formatChar)
     if (aFormat.length<3)
     {
      formatChar = "."
      aFormat = dateFormat.split(formatChar)
      if (aFormat.length<3)
      {
       formatChar = "-"
       aFormat = dateFormat.split(formatChar)
       if (aFormat.length<3)
       {
        // invalid date format
        formatChar=""
       }
      }
     }
    }
       
    tokensChanged = 0
    if ( formatChar != "" )
    {
     // use user's date
     aData = ctl2.value.split(formatChar)

     for (i=0;i<3;i++)
     {
      if ((aFormat[i]=="d") || (aFormat[i]=="dd"))
      {
       dateSelected = parseInt(aData[i], 10)
       tokensChanged ++
      }
      else if ((aFormat[i]=="m") || (aFormat[i]=="mm"))
      {
       monthSelected = parseInt(aData[i], 10) - 1
       tokensChanged ++
      }
      else if (aFormat[i]=="yyyy")
      {
       yearSelected = parseInt(aData[i], 10)
       tokensChanged ++
      }
      else if (aFormat[i]=="mmm")
      {
       for (j=0; j<12; j++)
       {
        if (aData[i]==monthName[j])
        {
         monthSelected=j
         tokensChanged ++
        }
       }
      }
     }
     
    }

    if ((tokensChanged!=3)||isNaN(dateSelected)||isNaN(monthSelected)||isNaN(yearSelected))
    {
     dateSelected = dateNow
     monthSelected = monthNow
     yearSelected = yearNow
    }

    odateSelected=dateSelected
    omonthSelected=monthSelected
    oyearSelected=yearSelected

    aTag = ctl
    do {
     aTag = aTag.offsetParent;
     leftpos += aTag.offsetLeft;
     toppos += aTag.offsetTop;
    } while(aTag.tagName!="BODY");

    crossobj.left = fixedX==-1 ? ctl.offsetLeft + leftpos : fixedX
    crossobj.top = fixedY==-1 ? ctl.offsetTop + toppos + ctl.offsetHeight + 2 : fixedY
    constructCalendar (1, monthSelected, yearSelected);
    crossobj.visibility=(dom||ie)? "visible" : "show"

    hideElement( 'SELECT', document.getElementById("calendar") );
    hideElement( 'APPLET', document.getElementById("calendar") );   

    bShow = true;
   }
   else
   {
    hideCalendar()
    if (ctlNow!=ctl) {popUpCalendar(ctl, ctl2, format)}
   }
   ctlNow = ctl
  }
  swapImage("changeLeft","left1.gif")
  swapImage("changeRight","right1.gif")
 }

 document.onkeypress = function hidecal1 () {
  if (event.keyCode==27)
  {
   hideCalendar()
  }
 }
 document.onclick = function hidecal2 () {   
  if (!bShow)
  {
   hideCalendar()
  }
  bShow = false
 }

 if(ie)
 {
  init()
 }
 else
 {
  window.onload=init
 }
 
 function DateFormatTest(DateTime,dateFormats,Alt)
 {
  var ttime=DateTime.value;
  var dataFormat = dateFormats
  if(ttime==null)
  {
  return;
  }
  if(ttime=="") {
  return;
  }
  
  var reg;
  
  if ( dateFormat == "yyyy-mm-dd" )
  {
   reg=/^\d{4}-\d{1,2}-\d{1,2}＄/;
  }
  else // dateFormat = "mm-dd-yyyy"  or "dd-mm-yyyy"
  {
   reg=/^\d{1,2}-\d{1,2}-\d{4}＄/;
  }
  
  
  var r = ttime.match(reg)
  if(r==null)
  {
  alert(Alt);
  DateTime.focus();
  return;
  }
  
  var s=ttime.split("-");
  if( dateFormat == "dd-mm-yyyy")
  {
   if(s[0]<1||s[0]>31||s[1]<1||s[1]>12||s[2].substring(0,2)<19||s[2].substring(0,2)>22)
   {
    alert(Alt);
    DateTime.select();
    return;
   }
  }
  if( dateFormat == "mm-dd-yyyy")
  {
   if(s[1]<1||s[1]>12||s[0]<1||s[0]>31||s[2].substring(0,2)<19||s[2].substring(0,2)>22)
   {
    alert(Alt);
    DateTime.select();
    return;
   }
  }
  if( dateFormat == "dd-mm-yyyy")
  {
   if(s[2].substring(0,2)<19||s[2].substring(0,2)>22||s[0]<1||s[0]>31||s[1]<1||s[1]>12)
   {
    alert(Alt);
    DateTime.select();
    return;
   }
  }
  return true;
  
 }