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].onmouseover = toggleMenu;
        }
    }
}

function toggleMenu() {
    var startMenu = this.href.lastIndexOf("/")+1;
    var stopMenu = this.href.lastIndexOf(".");
    var thisMenuName = this.href.substring(startMenu,stopMenu);
    
    document.getElementById(thisMenuName).style.display = "block";
    
    this.parentNode.className = thisMenuName;
    this.parentNode.onmouseout = toggleDivOff;
    this.parentNode.onmouseover = toggleDivOn;
}

function toggleDivOn() {
    document.getElementById(this.className).style.display = "block";
}

function toggleDivOff() {
    document.getElementById(this.className).style.display = "none";
}