function smartRollover() {



	if(document.getElementsByTagName) {



		var images = document.getElementsByTagName("img");







		for(var i=0; i < images.length; i++) {



			if(images[i].getAttribute("src").match("_f."))



			{



				images[i].onmouseover = function() {



					this.setAttribute("src", this.getAttribute("src").replace("_f.", "_o."));



				}



				images[i].onmouseout = function() {



					this.setAttribute("src", this.getAttribute("src").replace("_o.", "_f."));



				}



			}



		}



	}



}







if(window.addEventListener) {



	window.addEventListener("load", smartRollover, false);



}



else if(window.attachEvent) {



	window.attachEvent("onload", smartRollover);



}