function startList(restrito) {
    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() {
                    this.className += " over";
                }
                node.onmouseout = function() {
                    this.className = this.className.replace(" over", "");
                }
            }
        }
        
        if (restrito == "true") {
            navRoot1 = document.getElementById("nav1");
            for (i = 0; i < navRoot1.childNodes.length; i++) {
                node1 = navRoot1.childNodes[i];
                if (node1.nodeName == "LI") {
                    node1.onmouseover = function() {
                        this.className += " over";
                    }
                    node1.onmouseout = function() {
                        this.className = this.className.replace(" over", "");
                    }
                }
            }
        }
    }
}