var arrayImages = new Array(16);

arrayImages[0] = "/Common/Images/download-selected.gif";
arrayImages[1] = "/Common/Images/download-unselected.gif";
arrayImages[2] = "/Common/Images/pricing-selected.gif";
arrayImages[3] = "/Common/Images/pricing-unselected.gif";
arrayImages[4] = "/Common/Images/home1-selected.gif";
arrayImages[5] = "/Common/Images/home1-unselected.gif";
arrayImages[6] = "/Common/Images/forum-selected.gif";
arrayImages[7] = "/Common/Images/forum-unselected.gif";
arrayImages[8] = "/Common/Images/usergallery-selected.gif";
arrayImages[9] = "/Common/Images/usergallery-unselected.gif";
arrayImages[10] = "/Common/Images/links-selected.gif";
arrayImages[11] = "/Common/Images/links-unselected.gif";
arrayImages[12] = "/Common/Images/admin-selected.gif";
arrayImages[13] = "/Common/Images/admin-unselected.gif";
arrayImages[14] = "/Common/Images/licensing-selected.gif";
arrayImages[15] = "/Common/Images/licensing-unselected.gif";

function ChangeImage(elem, arrayId) {
    elem.childNodes[0].src = arrayImages[arrayId];
}

// Preloading of pictures
for (i=0; i < arrayImages.length; i++) {
  var preload = new Image();
  preload.src = arrayImages[i];
}