function updateDay(change,formName,yearName,monthName,dayName){

 var form=document.forms[formName];
 var yearSelect=form[yearName];
 var monthSelect=form[monthName];
 var daySelect=form[dayName];

 var year=yearSelect[yearSelect.selectedIndex].value;
 var month=monthSelect[monthSelect.selectedIndex].value;
 var day=daySelect[daySelect.selectedIndex].value;
 if (change=='month'||(change=='year'&&month==2)){
	var i=31;
	var flag=true;
	while(flag){
	 var date=new Date(year,month-1,i);
	 if (date.getMonth()==month-1){flag=false;}
	 else{i=i-1;}
	}
	daySelect.length=0;
	daySelect.length=i;
	var j=0;
	while(j<i){
	 daySelect[j]=new Option(j+1,j+1);
	 j=j+1;
	}
	if (day<=i)	{
	 daySelect.selectedIndex=day-1;
	}else{
	 daySelect.selectedIndex=daySelect.length-1;
	}
 }
}

function disableSelect(formName, formcontrols){ 

    df = formName;
    fc = formcontrols;
    if (formcontrols == 1) {
    
        if (df.checkmultiformDis.checked == true){df.daymultiformDis.disabled = false;df.monthmultiformDis.disabled = false;df.yearmultiformDis.disabled = false;df.d1.disabled = false;df.d2.disabled = false;df.d3.disabled = false;df.d4.disabled = false;df.d5.disabled = false;df.d6.disabled = false;df.d7.disabled = false;}
        else { df.daymultiformDis.disabled = true;df.monthmultiformDis.disabled = true;df.yearmultiformDis.disabled = true;df.d1.disabled = true;df.d2.disabled = true;df.d3.disabled = true;df.d4.disabled = true;df.d5.disabled = true;df.d6.disabled = true;df.d7.disabled = true;}    
    
    }
    
    else {

        if (df.checkmultiformDis.checked == true){df.udfoeresaf.disabled = false;df.daymultiformDis.disabled = false;df.monthmultiformDis.disabled = false;df.yearmultiformDis.disabled = false;}
        else {df.udfoeresaf.disabled = true;df.daymultiformDis.disabled = true;df.monthmultiformDis.disabled = true;df.yearmultiformDis.disabled = true;}
    
    }    
}