function createImageArray() {
    var imgUrls = new Array(
        'gfx/prosjekter.jpg', 'gfx/prosjekter_o.jpg', 'gfx/prosjekter_mo.jpg',
        'gfx/omoss.jpg', 'gfx/omoss_o.jpg', 'gfx/omoss_mo.jpg',
        'gfx/kontakt.jpg', 'gfx/kontakt_o.jpg', 'gfx/kontakt_mo.jpg',
        'gfx/nyheter.jpg', 'gfx/nyheter_o.jpg', 'gfx/nyheter_mo.jpg',
        'sendepost.jpg', 'sendepost_mo.jpg');

    onImageInit(imgUrls);
}

function onImageInit(imgUrls) {

    if (document.images) {
        if (imgUrls.length != undefined && imgUrls != null) {
            if (imgUrls.length > 0) {

                var imgList = new Array(imgUrls.length);

                for (var i = 0; i < imgUrls.length; i++) {
                    var img = new Image();
                    img.src = imgUrls[i];
                    imgList[i] = img;
                }
            }
        }
    }
}

window.onload = createImageArray;