// preload images for menu and toolbar rollovers

    var menudir = "http://www.zerodefectdesign.net/mba/images/menu/";
    var tooldir = "http://www.zerodefectdesign.net/mba/images/toolbar/";
    var welcomedir = "http://www.zerodefectdesign.net/mba/welcome/images/menu/";
    var localdir= "http://clubs.wharton.upenn.edu/www2004/images/";

    if (document.images) 
    {

        // menu graphics

        mbahome1 = new Image(170,20);
        mbahome1.src = menudir + "home.gif";
        mbahome2 = new Image(170,20);
        mbahome2.src = menudir + "home2.gif";

        welcome1 = new Image(170,20);
        welcome1.src = localdir + "welcome.gif";
        welcome2 = new Image(170,20);
        welcome2.src = localdir + "welcome2.gif";

        way1 = new Image(170,20);
        way1.src = welcomedir + "way.gif";
        way2 = new Image(170,20);
        way2.src = welcomedir + "way2.gif";

        visit1 = new Image(170,20);
        visit1.src = localdir + "visit.gif";
        visit2 = new Image(170,20);
        visit2.src = localdir + "visit2.gif";

        next1 = new Image(170,20);
        next1.src = welcomedir + "next.gif";
        next2 = new Image(170,20);
        next2.src = welcomedir + "next2.gif";

        move1 = new Image(170,20);
        move1.src = welcomedir + "move.gif";
        move2 = new Image(170,20);
        move2.src = welcomedir + "move2.gif";

        status1 = new Image(170,20);
        status1.src = menudir + "status.gif";
        status2 = new Image(170,20);
        status2.src = menudir + "status2.gif";

        discussion1 = new Image(170,20);
        discussion1.src = menudir + "discussion.gif";
        discussion2 = new Image(170,20);
        discussion2.src = menudir + "discussion2.gif";

        information1 = new Image(170,20);
        information1.src = menudir + "information.gif";
        information2 = new Image(170,20);
        information2.src = menudir + "information2.gif";

        visit1 = new Image(170,20);
        visit1.src = menudir + "visit.gif";
        visit2 = new Image(170,20);
        visit2.src = menudir + "visit2.gif";

        events1 = new Image(170,20);
        events1.src = menudir + "events.gif";
        events2 = new Image(170,20);
        events2.src = menudir + "events2.gif";

        contact1 = new Image(170,20);
        contact1.src = menudir + "contact.gif";
        contact2 = new Image(170,20);
        contact2.src = menudir + "contact2.gif";

        // toolbar graphics

        thome1 = new Image(81,26);
        thome1.src = tooldir + "home.gif";
        thome2 = new Image(81,26);
        thome2.src = tooldir + "home2.gif";

        tnews1 = new Image(28,26);
        tnews1.src = tooldir + "news.gif";
        tnews2 = new Image(28,26);
        tnews2.src = tooldir + "news2.gif";

        tcontact1 = new Image(61,26);
        tcontact1.src = tooldir + "contact.gif";
        tcontact2 = new Image(61,26);
        tcontact2.src = tooldir + "contact2.gif";

        thome1 = new Image(81,26);
        thome1.src = tooldir + "home.gif";
        thome2 = new Image(81,26);
        thome2.src = tooldir + "home2.gif";

        tmaps1 = new Image(100,26);
        tmaps1.src = tooldir + "maps.gif";
        tmaps2 = new Image(100,26);
        tmaps2.src = tooldir + "maps2.gif";

        tsearch1 = new Image(80,26);
        tsearch1.src = tooldir + "advsearch.gif";
        tsearch2 = new Image(80,26);
        tsearch2.src = tooldir + "advsearch2.gif";
    }

    // simple image replacement

    function imgSwap(imgDocID,imgObjName) 
    {
        if (document.images) 
        { 
            document.images[imgDocID].src = eval(imgObjName + ".src"); 
        }
    }

    // functions to show and hide quotes in sidebar

    function showQuote(id)
    {
        if (quote = document.getElementById(id))
        {
            quote.style.top = document.body.scrollTop + (document.body.clientHeight / 2) - 100;
            quote.style.left = document.body.clientWidth - 187;
            quote.style.visibility = "visible";
        }
    }

    function hideQuote(id)
    {
        if (quote = document.getElementById(id))
        {
            quote.style.visibility = "hidden";
        }
    }