if (document.images) {

    img01 = new Image;
    img01.src = "/i/nav5/tracking1.png";

    img02 = new Image;
    img02.src = "/i/nav5/tracking2.png";

    img03 = new Image;
    img03.src = "/i/nav5/aero1.png";

    img04 = new Image;
    img04.src = "/i/nav5/aero2.png";

    img05 = new Image;
    img05.src = "/i/nav5/pilot1.png";

    img06 = new Image;
    img06.src ="/i/nav5/pilot2.png";

    img07 = new Image;
    img07.src = "/i/nav5/operations1.png";

    img08 = new Image;
    img08.src = "/i/nav5/operations2.png";

    img09 = new Image;
    img09.src = "/i/nav5/forums1.png";

    img10 = new Image;
    img10.src = "/i/nav5/forums2.png";



    img11 = new Image;
    img11.src = "/i/nav5/accounts1.png";

    img12 = new Image;
    img12.src = "/i/nav5/accounts2.png";
}

function MM_swapImgRestore() { //v3.0
    var i, x, a = document.MM_sr; for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++) x.src = x.oSrc;
}

function MM_preloadImages() { //v3.0
    var d = document; if (d.images) {
        if (!d.MM_p) d.MM_p = new Array();
        var i, j = d.MM_p.length, a = MM_preloadImages.arguments; for (i = 0; i < a.length; i++)
            if (a[i].indexOf("#") != 0) { d.MM_p[j] = new Image; d.MM_p[j++].src = a[i]; } 
    }
}

function MM_findObj(n, d) { //v4.01
    var p, i, x; if (!d) d = document; if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
        d = parent.frames[n.substring(p + 1)].document; n = n.substring(0, p);
    }
    if (!(x = d[n]) && d.all) x = d.all[n]; for (i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
    for (i = 0; !x && d.layers && i < d.layers.length; i++) x = MM_findObj(n, d.layers[i].document);
    if (!x && d.getElementById) x = d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
    var i, j = 0, x, a = MM_swapImage.arguments; document.MM_sr = new Array; for (i = 0; i < (a.length - 2); i += 3)
        if ((x = MM_findObj(a[i])) != null) { document.MM_sr[j++] = x; if (!x.oSrc) x.oSrc = x.src; x.src = a[i + 2]; }
}