//Display the mainnav submenus
    function showMenu(menuID) {
        document.getElementById(menuID).style.visibility = 'visible';
    }
    //Hide Menu
    function hideMenu(menuID) {
        document.getElementById(menuID).style.visibility = 'hidden';
    }
    //Set the timer for hiding menu
    function delayHideMenu(menuID) {
        delayhide=setTimeout("hideMenu('"+menuID+"')",50);
    }
    //Reset the timer for hiding the menu
    function clearHideMenu(menuID) {
        if (typeof delayhide!="undefined") {
            clearTimeout(delayhide);
        }
    }