function PreLoad() {
    var pics = new Array(
            '/images/1x1.png',
            '/images/1x2.png',
            '/images/2x1.png',
            '/images/2x2.png',
            '/images/3x1.png',
            '/images/3x2.png',
            '/images/4x1.png',
            '/images/4x2.png',
            '/images/5x1.png',
            '/images/5x2.png',
            '/images/button_archiwizacja.png',
            '/images/button_archiwizacja_hover.png',
            '/images/button_elpodpis.png',
            '/images/button_elpodpis_hover.png',
            '/images/button_kontakt.png',
            '/images/button_kontakt_hover.png',
            '/images/button_o_firmie.png',
            '/images/button_o_firmie_hover.png',
            '/images/button_ochrona_danych.png',
            '/images/button_ochrona_danych_hover.png',
            '/images/button_serwis.png',
            '/images/button_serwis_hover.png',
            '/images/eset5.png',
            '/images/krd_150x70.png',
            '/images/kroll_partner.png',
            '/images/logo.png',
            '/images/mysz.png',
            '/images/mysz_link.png');
    imageObj = new Image();
    for (var i = 0; i < pics.lenght; i++) {
        imageObj.src = pics[i];
    }

    document.getElementById("MainTableDIV").style.visibility = "visible";
    document.getElementById("PreloaderDIV").style.visibility = "hidden";
}

function hover(picture, newImage) {
    picture.src = newImage;
}