<!--
function init()
{
    if (document.images) {
        img1off = new Image();
        img1off.src = "images/index-off.gif";
        img1on = new Image();
        img1on.src = "images/index-on.gif";
        img2off = new Image();
        img2off.src = "images/history-off.gif";
        img2on = new Image();
        img2on.src = "images/history-on.gif";
        img3off = new Image();
        img3off.src = "images/gallery-off.gif";
        img3on = new Image();
        img3on.src = "images/gallery-on.gif";
        img4off = new Image();
        img4off.src = "images/contact-off.gif";
        img4on = new Image();
        img4on.src = "images/contact-on.gif";
    }
}
function imgAct(imgName)
{
    if (document.images) {
        document[imgName].src = eval(imgName + "on.src");
    }
}
function imgInact(imgName)
{
    if (document.images) {
        document[imgName].src = eval(imgName + "off.src");
    }
}
//-->