function document_load() {

    // Some code to take care of Internet Explorer 6 limitations
    if (navigator.userAgent.search("MSIE") > 0) {

	// Some extra javascript to make CSS menus work properly.
	start_nav_list();

	// Turn off the drop shadow PNG as it won't render
	// it correctly on the main page div element.
	if (main_div = document.getElementById("main"))
	    main_div.style.backgroundImage = "none";
    }
}

function start_nav_list() {
    if (navRoot = document.getElementById("nav")) {
	
        for (i = 0; i < navRoot.childNodes.length; i++) {
            node = navRoot.childNodes[i];

            if (node.nodeName == "LI") {
                node.onmouseover = function() {
                    this.className += " over";
                }
                node.onmouseout = function() {
                    this.className = this.className.replace(" over", "");
                }
            }
        }
    }
}