home = new Image();
home.src = "/hausaufgaben/neu/images/nav/home.gif";
home_over = new Image();
home_over.src = "/hausaufgaben/neu/images/nav/home2.gif";

ha = new Image();
ha.src = "/hausaufgaben/neu/images/nav/ha.gif";
ha_over = new Image();
ha_over.src = "/hausaufgaben/neu/images/nav/ha2.gif";

trans = new Image();
trans.src = "/hausaufgaben/neu/images/nav/trans.gif";
trans_over = new Image();
trans_over.src = "/hausaufgaben/neu/images/nav/trans2.gif";

freesms = new Image();
freesms.src = "/hausaufgaben/neu/images/nav/freesms.gif";
freesms_over = new Image();
freesms_over.src = "/hausaufgaben/neu/images/nav/freesms2.gif";

shirts = new Image();
shirts.src = "/hausaufgaben/neu/images/nav/shirts.gif";
shirts_over = new Image();
shirts_over.src = "/hausaufgaben/neu/images/nav/shirts2.gif";

kdv = new Image();
kdv.src = "/hausaufgaben/neu/images/nav/kdv.gif";
kdv_over = new Image();
kdv_over.src = "/hausaufgaben/neu/images/nav/kdv2.gif";

forum = new Image();
forum.src = "/hausaufgaben/neu/images/nav/forum.gif";
forum_over = new Image();
forum_over.src = "/hausaufgaben/neu/images/nav/forum2.gif";

sprach = new Image();
sprach.src = "/hausaufgaben/neu/images/nav/sprach.gif";
sprach_over = new Image();
sprach_over.src = "/hausaufgaben/neu/images/nav/sprach2.gif";

zeitung = new Image();
zeitung.src = "/hausaufgaben/neu/images/nav/zeitung.gif";
zeitung_over = new Image();
zeitung_over.src = "/hausaufgaben/neu/images/nav/zeitung2.gif";

danke = new Image();
danke.src = "/hausaufgaben/neu/images/nav/agt.gif";
danke_over = new Image();
danke_over.src = "/hausaufgaben/neu/images/nav/agt2.gif";

kontakt = new Image();
kontakt.src = "/hausaufgaben/neu/images/nav/kontakt.gif";
kontakt_over = new Image();
kontakt_over.src = "/hausaufgaben/neu/images/nav/kontakt2.gif";



function change(pic,pic2) {

         eval("document." + pic + "_pic.src = pic2.src");

}

function safemail(name, domain, display) {

        displayed=(typeof(display)=="undefined") ? name+"@"+domain : display
        document.write('<a href=mailto:' + name + '@' + domain + '>' + displayed + '</a>');

}

function imgtra(email) {

        var alpha='ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLM';
        var x = 0;

        for (x = 0;
        x <= email.length;
        x++){ var part = email.substring(x, x+1);

        if (part >= 'A' && part <= 'Z'){ var
           letters = "upper"
        }
           if (part >= 'a' && part <= 'z') {
              var letters = "lower"
           }
           var part = part.toUpperCase();

           if (part == '[') { part = '<'; }
           if (part == ']') { part = '>'; }

           if (part >= 'A' && part <= 'Z') {
                       part = alpha.charAt(alpha.indexOf(part) + 13);
                   if (letters == "lower") {
                         part = part.toLowerCase()
                      }
           }
        document.write(part);

        }

}