function popUp(URL,parameters) {
	var chars = "0123456789abcdefghiklmnopqrstuvwxyz";
	var string_length = 8;
	var randomstring = '';
	for (var i=0; i<string_length; i++) {
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}

	popUp = window.open(URL,randomstring,parameters);
	return false;
}