/*------------------------

	addEventListener
	
------------------------*/

var dom = new Object;
dom.event = new Object;

dom.event.addEventListener = function(elm,type,func,useCapture){
    if(! elm){return false;}
    if(! useCapture){
    useCapture = false;
    }
    if(elm.addEventListener){
        elm.addEventListener(type,func,false);
    }else if(elm.attachEvent){
        elm.attachEvent("on"+type,func);
        }else{
            return false;
            }
        return true;
};

dom.event.removeEventListener = function(elm,type,func,useCapture){
    if(! elm){return false;}
    if(! useCapture){
    useCapture = false();
    }
    if(elm.removeEventListener){
        elm.removeEventListener(type,func,false);
    }else if(elm.datachEvent){
        elm.datachEvent("on"+type,func);
        }else{
            return false;
            }
        return true;
};

dom.event.stopPropagation = function(evt){
    if(evt && evt.stopPropagation){
    evt.stopPropagation();
    }else if(window.event){
        window.event.cancelBubble = true;
    }
}

/*------------------------

	smart roll over
	
------------------------*/
dom.event.addEventListener(window,"load",smartRollover);

function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}