function writelayer(layerID,txt)
{
      if(document.getElementById)
   {
       document.getElementById(layerID).innerHTML=txt;
   }
   else if(document.all)
   {
       document.all[layerID].innerHTML=txt;
   }
   else if(document.layers)
   {
       with(document.layers[layerID].document)
       {
            open();
            write(txt);
            close();
       }
   }
}