// preload images //
function doPreload()
{
    var the_images = new 
Array('images/nav2_01.gif','images/nav2_02.gif','images/nav2_03.gif','images/nav2_04.gif','images/nav2_10.gif','images/nav2_05.gif','images/nav2_06.gif','images/nav2_07.gif','images/nav2_08.gif','images/nav2_11.gif');
    preloadImages(the_images);
}
function preloadImages(the_images_array) {
    for(loop = 0; loop < the_images_array.length; loop++)
    {
        var an_image = new Image();
        an_image.src = the_images_array[loop];
    }
}