function smartRollover() {
	if(document.getElementsByTagName) {

		var pi = 0;
		var preload = new Array();
		var images = document.getElementsByTagName("img");
		for(var i=0; i < images.length; i++) {
			if ( !images[i] || !images[i].getAttribute("src",0) ) continue;
			if (images[i].getAttribute("src",0).match("_off.")) {
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src",0).replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src",0).replace("_on.", "_off."));
				}
				preload[pi] = new Image();
				preload[pi++].src = images[i].getAttribute("src",0).replace("_off.", "_on.");
			}
		}
	}

	if ( init!=null ) // “ÆŽ©�ˆ—�
		init();
}






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