function mouseoverNav() {
	//if (document.all&&document.getElementById) {
		navRoot = document.getElementById("nav");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					imgNode = this.getElementsByTagName("img")[1];
					if (imgNode) {
						imgNode.src = imgNode.src.replace("nav_", "nav_hover_");
					} else {
						imgNode = this.getElementsByTagName("img")[0];
						imgNode.src = imgNode.src.replace("nav_active_", "nav_hover_");
					}
					if (document.all) this.className+=" hover";
				}
				node.onmouseout=function() {
					imgNode = this.getElementsByTagName("img")[1];
					if (imgNode) {
						imgNode.src = imgNode.src.replace("nav_hover_", "nav_");
					} else {
						imgNode = this.getElementsByTagName("img")[0];
						imgNode.src = imgNode.src.replace("nav_hover_", "nav_active_");
					}
					if (document.all) this.className=this.className.replace(" hover", "");
				}

			}

		}
	//}
}
window.onload = mouseoverNav;