if (document.images) {
abouton = new Image(); // Active images
abouton.src="../images/menu2_12.gif";
aboutoff = new Image(); // Inactive images
aboutoff.src = "../images/menu2_02.gif";

courseon = new Image(); // Active images
courseon.src="../images/menu2_13.gif";
courseoff = new Image(); // Inactive images
courseoff.src = "../images/menu2_03.gif";

serviceson = new Image(); // Active images
serviceson.src="../images/menu2_14.gif";
servicesoff = new Image(); // Inactive images
servicesoff.src = "../images/menu2_04.gif";

infoon = new Image(); // Active images
infoon.src="../images/menu2_15.gif";
infooff = new Image(); // Inactive images
infooff.src = "../images/menu2_05.gif";

galleryon = new Image(); // Active images
galleryon.src="../images/menu2_16.gif";
galleryoff = new Image(); // Inactive images
galleryoff.src = "../images/menu2_06.gif";

downloadon = new Image(); // Active images
downloadon.src="../images/menu2_17.gif";
downloadoff = new Image(); // Inactive images
downloadoff.src = "../images/menu2_07.gif";

contacton = new Image(); // Active images
contacton.src="../images/menu2_18.gif";
contactoff = new Image(); // Inactive images
contactoff.src = "../images/menu2_08.gif";
}

function imgOn(imgName) {
if (document.images) {
document[imgName].src = eval(imgName + "on.src");
}
}

function imgOff(imgName) {
if (document.images) {
document[imgName].src = eval(imgName + "off.src");
}
}