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) {
        n_winter_over = newImage("img/n_winter_over.gif");
        n_zomer_over = newImage("img/n_zomer_over.gif");
        n_jongeren_over = newImage("img/n_jongeren_over.gif");
        n_concert_over = newImage("img/n_concert_over.gif");
        n_alleleeftijden_over = newImage("img/n_alleleeftijden_over.gif");
        n_boot_over = newImage("img/n_boot_over.gif");
        n_bungalow_over = newImage("img/n_bungalow_over.gif");
        swissdiamond_over = newImage("img/swissdiamond_over.jpg");
        statendam_over = newImage("img/statendam_over.jpg");
        queenofholland_over = newImage("img/queenofholland_over.jpg");
        elegantlady_over = newImage("img/elegantlady_over.jpg");
        erasmus_over = newImage("img/erasmus_over.jpg");
		elegantlady_beeld_over = newImage("img/elegantlady_beeld-over.jpg");
		elegantlady_beeld_over004 = newImage("img/elegantlady_beeld-over-04.jpg");
		elegantlady_beeld_over005 = newImage("img/elegantlady_beeld-over-05.jpg");
		elegantlady_beeld_over006 = newImage("img/elegantlady_beeld-over-06.jpg");
		elegantlady_beeld_over007 = newImage("img/elegantlady_beeld-over-07.jpg");
		elegantlady_beeld_over008 = newImage("img/elegantlady_beeld-over-08.jpg");
        preloadFlag = true;
    }
}