function addArtikelToCart(url, artnr, amount) {
    window.open(url + "?cmd=addItem&id=" + artnr + (amount>0?"&menge="+amount:""), "addToCart", "toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=240,height=120");
     return false;
}