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

   var gotoString="Go To Current Month"
   var todayString="Today is"
   var weekString="Wk"
   var scrollLeftMessage="Click to scroll to previous month. Hold mouse button to scroll automatically."
   var scrollRightMessage="Click to scroll to next month. Hold mouse button to scroll automatically."
   var selectMonthMessage="Click to select a month."
   var selectYearMessage="Click to select a year."
   var selectDateMessage="Select [date] as date." // do not replace [date], it will be replaced by date.

   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")
   var   img=new Array()

   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=imgsrc[i]
      }
      document.write ("<div id='calendar' style='position:absolute;visibility:hidden;'><table   width="+((showWeekNumber==1)?250:220)+" style='font-family:arial;font-size:11px;border-width:1;border-style:solid;border-color:#000000;font-family:arial; font-size:11px}' bgcolor='#ffffff'><tr bgcolor='#193357'><td><table width='"+((showWeekNumber==1)?248:218)+"'><tr><td style='padding:2px;font-family:arial; font-size:11px;'><font color='#ffffff'><B><span id='caption'></span></B></font></td><td align=right><font color='#ffffff' size='1'><B><a href='javascript:hideCalendar()'><IMG SRC='"+imgDir+"close.gif' WIDTH='15' HEIGHT='13' BORDER='0' ALT='Close the Calendar'></a></td></tr></table></td></tr><tr><td style='padding:5px' bgcolor=#ffffff><span id='content'></span></td></tr>")

      if (showToday==1)
      {
         document.write ("<tr bgcolor=#f0f0f0><td style='padding:5px' align=center><span id='lblToday'></span></td></tr>")
      }

      document.write ("</table></div><div id='selectMonth' style='position:absolute;visibility:hidden;'></div><div id='selectYear'   style='position:absolute;visibility:hidden;'></div>");
   }

   var   monthName=  new   Array("January","February","March","April","May","June","July","August","September","October","November","December")
   if (startAt==0)
   {
      dayName=new Array   ("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
   }
   else
   {
      dayName=new Array   ("Mon","Tue","Wed","Thu","Fri","Sat","Sun")
   }
   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)
         {
            document.getElementById("lblToday").innerHTML=  todayString + " <a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+dayName[(today.getDay()-startAt==-1)?6:(today.getDay()-startAt)]+", " + dateNow + " " + monthName[monthNow].substring(0,3)   + "   " +   yearNow   + "</a>"
         }

         sHTML1="<span id='spanLeft'   style='border-style:solid;border-width:1;border-color:#3366FF;cursor:pointer' onmouseover='swapImage(\"changeLeft\",\"left2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollLeftMessage+"\"' onclick='javascript:decMonth()' onmouseout='clearInterval(intervalID1);swapImage(\"changeLeft\",\"left1.gif\");this.style.borderColor=\"#3366FF\";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:#3366FF;cursor:pointer'   onmouseover='swapImage(\"changeRight\",\"right2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollRightMessage+"\"' onmouseout='clearInterval(intervalID1);swapImage(\"changeRight\",\"right1.gif\");this.style.borderColor=\"#3366FF\";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:#3366FF;cursor:pointer'   onmouseover='swapImage(\"changeMonth\",\"drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectMonthMessage+"\"' onmouseout='swapImage(\"changeMonth\",\"drop1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onclick='popUpMonth()'></span>&nbsp;"
         sHTML1+="<span id='spanYear' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:pointer' onmouseover='swapImage(\"changeYear\",\"drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectYearMessage+"\"'   onmouseout='swapImage(\"changeYear\",\"drop1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"'   onclick='popUpYear()'></span>&nbsp;"

         document.getElementById("caption").innerHTML=  sHTML1

         bPageLoaded=true
      }
   }

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

   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=  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: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
   }

   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 ++;
   }

   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 --;
   }

   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: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) {
      var P3D=259200000, P7D=604800000, y=n.getYear(), y=(y<1000?1900+y:y);
      var s=Math.floor((Date.UTC(y,n.getMonth(),n.getDate())+P3D)/P7D);
      tmp=new Date(s*P7D); j=tmp.getYear(); j=(j<1000?1900+j:j);
      return 1+s-Math.floor((Date.UTC(j,0,4)+P3D)/P7D)
   }

   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() - 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 CalendarFunc(ctl,   ctl2, format) {
      var   leftpos=0
      var   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"
         }
         else
         {
            hideCalendar()
            if (ctlNow!=ctl) {CalendarFunc(ctl, ctl2, format)}
         }
         ctlNow=ctl
      }
   }
   window.onload=init