function button_onmouseout(imgNummer) {
        if (version != "rollover_ok") return;

        var dummy1 = eval("button" + imgNummer + "aus.src");
                document ["button" + imgNummer].src = dummy1;
                return;
}
                        function button_onmouseover(imgNummer) {
                if (version != "rollover_ok") return;
                
        var dummy1 = eval("button" + imgNummer + "an.src");
                document ["button" + imgNummer].src = dummy1;
                return;
}

        var browserName = navigator.appName;
        var browserVer = parseInt(navigator.appVersion);

        if (browserName == "Microsoft Internet Explorer" && browserVer <= 3 ) {
                var version = "rollover_not_ok";
} else {
                var version = "rollover_ok";

        var button1aus = new Image(172,50);
        var button7aus = new Image(84,27);
        var button8aus = new Image(84,27);
        var button9aus = new Image(84,27);
        var button10aus = new Image(82,27);
        
        var button1an = new Image(172,50);
        var button7an = new Image(84,27);
        var button8an = new Image(84,27);
        var button9an = new Image(84,27);
        var button10an = new Image(82,27);

        button1aus.src = "/images/space.gif";
        button7aus.src = "/images/menue_head/menue-1a_e.gif";
        button8aus.src = "/images/menue_head/menue-2a_e.gif";
        button9aus.src = "/images/menue_head/menue-3a_e.gif";
        button10aus.src = "/images/menue_head/menue-4a_e.gif";
        
        button1an.src = "/images/menue_shop_e.jpg";
        button7an.src = "/images/menue_head/menue-1b_e.gif";
        button8an.src = "/images/menue_head/menue-2b_e.gif";
        button9an.src = "/images/menue_head/menue-3b_e.gif";
        button10an.src = "/images/menue_head/menue-4b_e.gif";
        
}