// Thinc1st Required Fields Script
function checkrequired(which) {
var pass=true;
	if (document.images) {
		for (i=0;i<which.length;i++) {
		var tempobj=which.elements[i];
			if (tempobj.name.substring(0,2)=="r-") {
				if (((tempobj.type=="text"||tempobj.type=="textarea") && tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s" && tempobj.selectedIndex==0)) {
				pass=false;
				break;
				}
				if (((tempobj.type=="checkbox") && tempobj.checked==true)) {
				} else {
				pass=false;
				break;
				}
			}
		}
	}
	if (!pass) {
	shortFieldName=tempobj.name.substring(2,30).toUpperCase();
	alert("Het volgende veld in het formulier is niet ingevuld: "+shortFieldName+"");
	return false;
	}
		else
		return true;
}