<!-- Begin
function checkrequired(which,exclude) {
var pass=true;
var nr;
if (document.images) {
for (i=1;i<which.length;i++) {
var tempobj=which.elements[i];
if (tempobj.name.substring(0,8)!="Kopi" && tempobj.name != exclude) {
	if (tempobj.name.indexOf("mailadres") != -1){ 
		nr = i;	}
if (((tempobj.type=="text"||tempobj.type=="textarea"||tempobj.type=="hidden")&&
tempobj.value=='' || tempobj.value=='None')||(tempobj.type.toString().charAt(0)=="s"&&
tempobj.selectedIndex==-1)) {
pass=false;
break;
		 }
      }
   }
}
if (!pass) {
shortFieldName=tempobj.name.substring(0,30).toUpperCase();
alert("Uw "+shortFieldName+" is verplicht.");
}
else if (which.elements[nr].value.search("@") == -1 || which.elements[nr].value.search("[.*]") == -1) {
alert(which.elements[nr].value+" is geen geldig e-mailadres.");
} else {
	which.submit();
	}
}
//  End -->