var aktive

function seite(s){
        if(! s) s = 1;
        aktive = s;
        for(i=1;i<7;i++){
               document.getElementById("text"+i).style.display = "none";
               MA_out (i)
        }
        document.getElementById("text"+s).style.height = "350";
        document.getElementById("text"+s).style.display = "block";
        MA_over (s)
}

function MA_over (g){
         document.getElementById("mp"+g).style.backgroundImage="url(grafik/m"+g+"_ro.gif)";
}

function MA_out (g){
         if (aktive != g) {
                 document.getElementById("mp"+g).style.backgroundImage="url(grafik/m"+g+".gif)";
         }
}