// JScript File
userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
    if (document.images) {
        rslt = new Image();
        rslt.src = arg;
        return rslt;
    }
}

function findElement(n,ly) {
    if (browserVers < 4)		return document[n];
    var curDoc = ly ? ly.document : document;
    var elem = curDoc[n];
    if (!elem) {
        for (var i=0;i<curDoc.layers.length;i++) {
            elem = findElement(n,curDoc.layers[i]);
            if (elem) return elem;
        }
    }
    return elem;
}

function changeImagesArray(array) {
    if (document.images && (preloadFlag == false)) {
      preloadImages();
    }
    if (document.images && (preloadFlag == true)) {
        for (var i=0; i<array.length; i+=2) {
            img = null;
            if (document.layers) {
                img = findElement(array[i],0);
            }
            else {
                img = document.images[array[i]];
            }
            if (img) {
                img.src = array[i+1];
            }
        }
    }
}

function changeImages() {
    changeImagesArray(changeImages.arguments);
}

function toggleImages() {
    for (var i=0; i<toggleImages.arguments.length; i+=2) {
        if (selected == toggleImages.arguments[i])      changeImagesArray(toggleImages.arguments[i+1]);
    }
}

var selected = '';
var preloadFlag = false;
function preloadImages() {
    if (document.images) {
        gpnav_01_o = newImage("../images/gpnav_01_o.gif");
        gpnav_02_o = newImage("../images/gpnav_02_o.gif");
        gpnav_03_o = newImage("../images/gpnav_03_o.gif");
        gpnav_04_o = newImage("../images/gpnav_04_o.gif");
        gpnav_05_o = newImage("../images/gpnav_05_o.gif");
        gpnav_06_o = newImage("../images/gpnav_06_o.gif");
        gpnav_07_o = newImage("../images/gpnav_07_o.gif");
        gpnav_08_o = newImage("../images/gpnav_08_o.gif");
        gpnav_09_o = newImage("../images/gpnav_09_o.gif");
        preloadFlag = true;
    }
}

preloadImages;