var isMSIE = (navigator.appName == "Microsoft Internet Explorer");
var isOPERA = (navigator.appName == "Opera");

function id_addEvent(obj, name, handler) {
	//alert("Add event "+obj+": "+name+" -> "+handler);
	if ( (isMSIE) || (isOPERA) ) {
		obj.attachEvent("on" + name, handler);
	} else {
		obj.addEventListener(name, handler, false);
	}
}