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