function smartRollover() {
/*@cc_on _d=document;eval('var document=_d')@*/
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");
		for(var i=0; i < images.length; i++) {
			
			if(images[i].getAttribute("src").match(/_ro\./)) {
				fileName = new Array(images[i].getAttribute("src").replace("_ro.", "_ro_f2."));
				preImages = new Array();
				for (var j=0; j<fileName.length; j++) {
					preImages[j] = new Image();
					preImages[j].src = fileName[j];
				}
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_ro.", "_ro_f2."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_ro_f2.", "_ro."));
				}
			}
		}
	}
}

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