function popup(picture){
	window.open('showpicture.jsp?resource='+picture,'window','height=400, width=400, resizable=1');
	return;
}
function openElearning(cursus) {
	var presentatie82 = window.open('/elearning/presentatie82.jsp?cursus='+cursus, 'presentatie82','width=750,height=540, location=no,menubar=no,status=no,resizable=no,scrollbars=no');
}
function check_all(parent){
	var theElement = "";
	var parentName = "sector_"+parent;
	for(var i=0; i < sectoren.length; i=i+2){
		if (sectoren[i+1]==parent){
			theElement = getObjectByName("sector_"+sectoren[i]);
			if (getObjectByName(parentName).checked) theElement.checked=true; else theElement.checked=false;
		}
	}
}
function getObjectByName(name){
	if (window.document.all!=null) {
		for (i = 0; i < window.document.all.length; i++) {
			if (window.document.all[i].name != null && window.document.all[i].name == name) {
				return window.document.all[i];
			}
		}
		return false;
	}else{
		return document.getElementById(name);
	}
}
function scrollRef(id,positie) {
	var ref = window.open('scrollref.jsp?id='+id+'&positie='+positie, 'ref','width=400,height=300, location=no,menubar=no,status=no,resizable=no,scrollbars=no');
}