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

if(window.addEventListener){  
	window.addEventListener("load", smartRollover, false);  
}  
else if(window.attachEvent){  
	window.attachEvent("onload", smartRollover);  
}

function disp(url){window.open(url, "window_name", "width=640,height=480,scrollbars=yes");}

function addBookmark(title,url) {
	if (window.sidebar) {
		window.sidebar.addPanel(title, url,"");
	} else if( document.all ) {
		window.external.AddFavorite( url, title);
	} else if( window.opera && window.print ) {
		return true;
	}
}