function open_popup() {
		var url = arguments[0]
		var returnfield = arguments[1]
		insertWindow = window.open(url,"","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=yes, width=500, height=600");
	}

	function insertValue(foreignKeyValue, foreignKeyField){
		document.getElementById(foreignKeyField).value = foreignKeyValue;
	}