var strUrl,dtNow,objYear,objMonth,objDay,arrMonths,arrDays,intYear,intOldYear,intMonth,intDay,intLen,intOldLen,intIndex,intValue;
strUrl=window.location.href.toLowerCase();
dtNow=new Date();
objYear=document.getElementById("year");
objMonth=document.getElementById("month");
objDay=document.getElementById("day");
arrMonths=["January","February","March","April","May","June","July","August","September","October","November","December"];
arrDays=[31,28,31,30,31,30,31,31,30,31,30,31];
function DateSelector(w){
 intYear=objYear.options[objYear.selectedIndex].value;
 if(!objMonth.disabled)intMonth=objMonth.options[objMonth.selectedIndex].value;
 else intMonth=0;
 if(!objDay.disabled)intDay=objDay.options[objDay.selectedIndex].value;
 else intDay=0;
 if(!w){
  if(intYear!=""){
   if(CheckYear(intYear)||CheckYear(intOldYear)){
    if(CheckYear(intYear))intLen=dtNow.getMonth()+1;
    else intLen=12;
    Populate(objMonth,"Month",1,intMonth)
   }
   Show(objMonth);
   intOldYear=intYear;
   if(!objDay.disabled)DateSelector(1);
  }else{
   Hide(objDay);
   Hide(objMonth);
  }
 }else{
  if(intYear!=""&&intMonth!=""){
   intLen=arrDays[intMonth-1];
   if(intMonth-1==dtNow.getMonth()&&CheckYear(intYear))intLen=dtNow.getDate();
   if(intMonth==2&&intLen==28&&intYear%4==0&&!(intYear%100==0&&intYear%400!=0))intLen++;
   if(intLen!=intOldLen)Populate(objDay,"Day",0,intDay)
   Show(objDay);
   intOldLen=intLen;
  }else Hide(objDay);
 }
}
function CheckYear(y){
 if(y!=objYear[1].value)return false;
 return true;
}
function Hide(o){
 if(!o.disabled){
  o.disabled=true;
  o.selectedIndex=0;
  o.style.visibility="hidden";
 }
}
function Populate(o,d,a,v){
 o.options.length=0;
 o[0]=new Option(d,"");
 o.selectedIndex=0;
 for(var x=1;x<=intLen;x++){
  intIndex=x;
  if(intIndex<=9)intValue="0"+intIndex;
  else intValue=intIndex;
  if(a)intIndex--
  o[x]=new Option(a?arrMonths[intIndex]:intIndex,intValue);
  if(v==intValue)o.selectedIndex=x;
 }
}
function Show(o){
 if(o.disabled){
  o.style.visibility="visible";
  o.disabled=false;
  o.focus();
 }
}
if(strUrl.indexOf("register")!=-1||objYear.selectedIndex==0){
 Hide(objDay);
 Hide(objMonth);
}else{
 intOldYear=objYear.options[objYear.selectedIndex].value;
 intOldLen=parseInt(objDay.options[objDay.length-1].value);
}