function newImage(arg) {

    if (document.images) {

        rslt = new Image();

        rslt.src = arg;

        return rslt;
    }
}



function changeImages() {

    if (document.images && (preloadFlag == true)) {

        for (var i = 0; i < changeImages.arguments.length; i += 2) {

            document[changeImages.arguments[i]].src = changeImages.arguments[i + 1];

        }

    }

}



var preloadFlag = false;

function preloadImages() {

    if (document.images) {

        nuf_07_over = newImage("/images/nuf_07-over.gif");

        nuf_08_over = newImage("/images/toolbar-specials-over.png");

        nuf_09_over = newImage("/images/nuf_09-over.gif");

        nuf_10_over = newImage("/images/nuf_10-over.gif");

        nuf_11_over = newImage("/images/nuf_11-over.gif");

        nuf_12_over = newImage("/images/nuf_12-over.gif");

        preloadFlag = true;

    }

}