function cOn(td){
  if(document.getElementById||(document.all && !(document.getElementById))){
    td.style.backgroundColor="#9a9999";
  }
}
function cOut(td){
  if(document.getElementById||(document.all && !(document.getElementById))){
    td.style.backgroundColor="#cccccc";
  }
}

function lageplan(ref)
{
   window.open( ref, "", "width=760,height=580,resizeable=no,scrollbars=no");
}