function isNumberKey(evt){
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

         return true;
}

function CheckForm(formname,fields) {
//	alert (document.Registration.Title.selected);
	var Poruka ="Some of mandatory fields is not filled in or not properly";
	var  aTextPolja = fields.split(",") //new Array 
	for (a=0; a<aTextPolja.length; a++){
//		alert (document.forms[formname].elements[aTextPolja[a]].name);
		if (document.forms[formname].elements[aTextPolja[a]].value ==""){
			alert(Poruka);
			document.forms[formname].elements[aTextPolja[a]].focus();
			document.forms[formname].elements[aTextPolja[a]].style.backgroundColor='yellow';
			return false;
		}
		else{
			document.forms[formname].elements[aTextPolja[a]].style.backgroundColor='white';
		}
	}
	return true;
}


function CheckRadioButton(form, btn, whatMessage) {
	btn = document.forms[form].elements[btn]
    var cnt = -1;
    for (i=0; i<btn.length; i++) {
        if (btn[i].checked) {
			cnt = i; 
			}
    }
	
    if (cnt==-1) {
		alert('You must select ' + whatMessage);
		return false;
	} 
	return true;
}



function CheckDatePast(formname,datefield) {
    var dDesiredDate=new Date();
    var today = new Date();
    aDesiredDate = document.forms[formname].elements[datefield].value.split("/");
    dDesiredDate.setYear(aDesiredDate[2]);
    dDesiredDate.setMonth(aDesiredDate[1]-1);
    dDesiredDate.setDate(aDesiredDate[0]);
    if (dDesiredDate < today){
	    alert ("Liefste datum is voorbij. Kies een andere datum");
		return false;
		document.forms[formname].elements[datefield].focus();
		document.forms[formname].elements[datefield].style.backgroundColor='yellow';
		return false;
    }
}

function toggleDiv(id,flagit) {
	if (flagit=="1"){
		var IE = document.all?true:false
		if (!IE) document.captureEvents(Event.MOUSEMOVE)
		if (IE) { // grab the x-y pos.s if browser is IE
		   tempX = event.clientX + document.body.scrollLeft
		   tempY = event.clientY + document.body.scrollTop
		} else {  // grab the x-y pos.s if browser is NS
		   tempX = e.pageX
		   tempY = e.pageY
		}  
		 if (tempX < 0){tempX = 0}
		 if (tempY < 0){tempY = 0}  

		document.getElementById(''+id+'').style.visibility = "visible"
		document.getElementById(''+id+'').style.left = tempX + 10;
		document.getElementById(''+id+'').style.top = tempY	 +10;
	}
	
		if (flagit=="0"){
		document.getElementById(''+id+'').style.visibility = "hidden"
		}
}




function showhide(showid, hideid) {
//	alert (showid);
//	alert (hideid);
	var layerhide = document.getElementById(hideid);
	layerhide.style.visibility='hidden';
	layerhide.style.display='none';

	var layershow = document.getElementById(showid);
	layershow.style.visibility='visible';
	layershow.style.display='block';
}