//browserweiche
//BROWSERABFRAGE
var brws=navigator.appName;
var vers=navigator.appVersion;
var ie=0,ns4=0,ns6=0,ie5=0;

if(brws=="Microsoft Internet Explorer"){if(parseInt(vers)<=4)ie=1;else ie5=1};
if(brws=="Netscape"){if(parseInt(vers)<=4)ns4=1;else ns6=1};



 //datei menue
  var na=new Array("bio","pro","ter","bib","wor","kon","lin"),z,q="";

        //mouseover-effekt
        function change(was,wab){
                var wie=na[was];
                if(wie!=q){
                        if(wab==1) wab="";
                        eval("document."+wie+".src='images/buttons/"+wie+wab+".jpg';");
                }
                z=wie;
                return z;
        }

        //schwarze schrift auf gezeigter seite
        function black(){
                for(i=0;i<=6;i++){
                                eval("document."+na[i]+".src='images/buttons/"+na[i]+".jpg';");
                                eval("document."+na[i]+".width='100';");
                }
                eval("document."+z+".src='images/buttons/"+z+"2.jpg';");
                eval("document."+z+".width='115';");
                eval("document."+z+".height='52';");
                q=z;return q;
        }
        //scrollbalken
        function skrol(){
        //für ie4
        //        parent.document.all.haupt.scrolling="yes";
        //für ns
        //parent.document.getElementById("haupt").scrolling="yes";
        }