function smartRollover() {
	if(document.getElementsByTagName) {
	var tags = ["img","input"];
	var len = tags.length;
	for( var i=0; i<len; i++ ) {
		var el = document.getElementsByTagName(tags[i]);
		var len2 = el.length;
		for(var j=0; j<len2; j++) {
		var attr = el[j].getAttribute("src");
		if( attr ) {
			if(el[j].getAttribute("src").match(/_ot\./))
			{
			el[j].onmouseover = function() {
				this.setAttribute("src", this.getAttribute("src").replace("_ot.", "_ov."));
			}
			el[j].onmouseout = function() {
				this.setAttribute("src", this.getAttribute("src").replace("_ov.", "_ot."));
			}
			}
		}
		}
	}
	}
}
if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}