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

function wslRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");
		for(var i=0; i < images.length; i++) {
			var imageName = images[i].getAttribute("src");
			if(imageName.match("-norm\.gif") || imageName.match("-norm\.jpg")){
				images[i].onmouseover = function() {
					this.setAttribute("src",
					this.getAttribute("src").replace("-norm\.", "-over."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src",
					this.getAttribute("src").replace("-over\.", "-norm."));
				}
			}
		}
	}
}