window.onload = initAll;

function initAll() {
        var allLinks = document.getElementsByTagName("a");

        for (var i=0; i<allLinks.length; i++) {
                if (allLinks[i].className.indexOf("menuLink") > -1) {
                        allLinks[i].onclick = toggleMenu;
                }
        }
}

function toggleMenu() {

        var allLinks = document.getElementsByTagName("a");
        var allUls = document.getElementsByTagName("ul");

        var startMenu = this.href.lastIndexOf("/")+1;
        var stopMenu = this.href.lastIndexOf(".");
        var thisMenuName = this.href.substring(startMenu,stopMenu);

        for (var i=0; i<allLinks.length; i++) {
                if (allLinks[i].className.indexOf("menuLink") > -1) {
                        allLinks[i].display = "none";
                }
        }

        for (var i=0; i<allUls.length; i++) {
                if ((allUls[i].className.indexOf("menu") > -1)&&(allUls[i].id!=thisMenuName)) {
                        document.getElementById(allUls[i].id).style.display="none";
                }
        }

        var thisMenu = document.getElementById(thisMenuName).style;
        if (thisMenu.display == "block")  {
                thisMenu.display = "none";
        }
        else {
                thisMenu.display = "block";
        }

        return false;
}