function shownavd(k,h){
   for(var i=0;i<4;i++){document.getElementById("jsmaind_"+k+i).style.display="none";}
   for(var i=0;i<4;i++){document.getElementById("jsnavtitled_"+k+i).className="divnavdA";}
   document.getElementById("jsnavtitled_"+k+h).className="divnavdB";
   document.getElementById("jsmaind_"+k+h).style.display="block";
  }