// Diverse Startwerte setzen
    // Browser-Variante abfragen
    var browser = new Object();
    var agent = navigator.userAgent.toLowerCase();
    browser.major = parseInt(navigator.appVersion);
    browser.minor = parseFloat(navigator.appVersion);
    browser.nav  = ( (agent.indexOf('mozilla') != -1 )
                  && (agent.indexOf('opera')== -1)
                  && (agent.indexOf('compatible') == -1) );
    browser.nav2 = (browser.nav && (browser.major >= 2));
    browser.nav3 = (browser.nav && (browser.major >= 3));
    browser.nav4 = (browser.nav && (browser.major >= 4));
    browser.ie   = (agent.indexOf("msie") != -1);
    browser.ie3  = (browser.ie && (browser.major == 2));
    browser.ie4  = (browser.ie && (browser.major >= 4));
    browser.ie5  = (browser.ie && (browser.major >= 5));
    browser.op = (agent.indexOf("opera") != -1);
    browser.unix  = (agent.indexOf("x11") != -1);
    browser.win   = (agent.indexOf("win") != -1);
    browser.mac   = (agent.indexOf("mac") != -1);
    n = 0;

    // Browser-Variante abfragen
    // Nur ab Netscape Version 3 und IE Version 4 ausführen 
    if((browser.nav3) || (browser.ie4))
    {
      imgOut = new Array();
      imgOver = new Array();
      imgDown = new Array();

      // Bildgröße angeben
      imgOut[n + 0] = new Image(119,18);
      imgOut[n + 0].src = "buttons/autor0.gif";
      imgOut[n + 1] = new Image(119,18);
      imgOut[n + 1].src = "buttons/best0.gif";
      imgOut[n + 2] = new Image(119,18);
      imgOut[n + 2].src = "buttons/downl0.gif";
      imgOut[n + 3] = new Image(119,18);
      imgOut[n + 3].src = "buttons/witze0.gif";
      imgOut[n + 4] = new Image(119,18);
      imgOut[n + 4].src = "buttons/home0.gif";
      imgOut[n + 5] = new Image(119,18);
      imgOut[n + 5].src = "buttons/hb0.gif";
      imgOut[n + 6] = new Image(119,18);
      imgOut[n + 6].src = "buttons/ge0.gif";
      imgOut[n + 7] = new Image(119,18);
      imgOut[n + 7].src = "buttons/datenb0.gif";
      imgOut[n + 8] = new Image(119,18);
      imgOut[n + 8].src = "buttons/finanz0.gif";
      imgOut[n + 9] = new Image(119,18);
      imgOut[n + 9].src = "buttons/mi0.gif";

      // imgOut[n + 10] = new Image(119,18);
      // imgOut[n + 10].src = "buttons/dbkonto0.gif";
      // imgOut[n + 11] = new Image(119,18);
      // imgOut[n + 11].src = "buttons/recht0.gif";

      imgOut[n + 10] = new Image(119,18);
      imgOut[n + 10].src = "buttons/links0.gif";
      imgOut[n + 11] = new Image(119,18);
      imgOut[n + 11].src = "buttons/shw0.gif";
      imgOut[n + 12] = new Image(119,18);
      imgOut[n + 12].src = "buttons/suchm0.gif";
      imgOut[n + 13] = new Image(119,18);
      imgOut[n + 13].src = "buttons/wincmd0.gif";

      imgOver[n + 0] = new Image(119,18);
      imgOver[n + 0].src = "buttons/autor1.gif";
      imgOver[n + 1] = new Image(119,18);
      imgOver[n + 1].src = "buttons/best1.gif";
      imgOver[n + 2] = new Image(119,18);
      imgOver[n + 2].src = "buttons/downl1.gif";
      imgOver[n + 3] = new Image(119,18);
      imgOver[n + 3].src = "buttons/witze1.gif";
      imgOver[n + 4] = new Image(119,18);
      imgOver[n + 4].src = "buttons/home1.gif";
      imgOver[n + 5] = new Image(119,18);
      imgOver[n + 5].src = "buttons/hb1.gif";
      imgOver[n + 6] = new Image(119,18);
      imgOver[n + 6].src = "buttons/ge1.gif";
      imgOver[n + 7] = new Image(119,18);
      imgOver[n + 7].src = "buttons/datenb1.gif";
      imgOver[n + 8] = new Image(119,18);
      imgOver[n + 8].src = "buttons/finanz1.gif";
      imgOver[n + 9] = new Image(119,18);
      imgOver[n + 9].src = "buttons/mi1.gif";

      // imgOver[n + 10] = new Image(119,18);
      // imgOver[n + 10].src = "buttons/dbkonto1.gif";
      // imgOver[n + 11] = new Image(119,18);
      // imgOver[n + 11].src = "buttons/recht1.gif";

      imgOver[n + 10] = new Image(119,18);
      imgOver[n + 10].src = "buttons/links1.gif";
      imgOver[n + 11] = new Image(119,18);
      imgOver[n + 11].src = "buttons/shw1.gif";
      imgOver[n + 12] = new Image(119,18);
      imgOver[n + 12].src = "buttons/suchm1.gif";
      imgOver[n + 13] = new Image(119,18);
      imgOver[n + 13].src = "buttons/wincmd1.gif";

      imgDown[n + 0] = new Image(119,18);
      imgDown[n + 0].src = "buttons/autor2.gif";
      imgDown[n + 1] = new Image(119,18);
      imgDown[n + 1].src = "buttons/best2.gif";
      imgDown[n + 2] = new Image(119,18);
      imgDown[n + 2].src = "buttons/downl2.gif";
      imgDown[n + 3] = new Image(119,18);
      imgDown[n + 3].src = "buttons/witze2.gif";
      imgDown[n + 4] = new Image(119,18);
      imgDown[n + 4].src = "buttons/home2.gif";
      imgDown[n + 5] = new Image(119,18);
      imgDown[n + 5].src = "buttons/hb2.gif";
      imgDown[n + 6] = new Image(119,18);
      imgDown[n + 6].src = "buttons/ge2.gif";
      imgDown[n + 7] = new Image(119,18);
      imgDown[n + 7].src = "buttons/datenb2.gif";
      imgDown[n + 8] = new Image(119,18);
      imgDown[n + 8].src = "buttons/finanz2.gif";
      imgDown[n + 9] = new Image(119,18);
      imgDown[n + 9].src = "buttons/mi2.gif";

      // imgDown[n + 10] = new Image(119,18);
      // imgDown[n + 10].src = "buttons/dbkonto2.gif";
      // imgDown[n + 11] = new Image(119,18);
      // imgDown[n + 11].src = "buttons/recht2.gif";

      imgDown[n + 10] = new Image(119,18);
      imgDown[n + 10].src = "buttons/links2.gif";
      imgDown[n + 11] = new Image(119,18);
      imgDown[n + 11].src = "buttons/shw2.gif";
      imgDown[n + 12] = new Image(119,18);
      imgDown[n + 12].src = "buttons/suchm2.gif";
      imgDown[n + 13] = new Image(119,18);
      imgDown[n + 13].src = "buttons/wincmd2.gif";
    };