ASM.tool.CustomEvent = function () {

	this.addEvent = function(obj, evType, fn, useCapture){
		if (obj.addEventListener){
			obj.addEventListener(evType, fn, useCapture);
			return true;
		} else if (obj.attachEvent){
			var r = obj.attachEvent("on"+evType, fn);
			return r;
		} else {
			alert("Handler could not be attached");
			return false;
		}
	}

	this.removeEvent = function(obj, evType, fn, useCapture){
		if (obj.removeEventListener){
			obj.removeEventListener(evType, fn, useCapture);
			return true;
		} else if (obj.detachEvent){
			var r = obj.detachEvent("on"+evType, fn);
			return r;
		} else {
			alert("Handler could not be removed");
			return false;
		}
	}
}