function showleistung(id)
{
  var ids = new Array('block01','block02','block03','block04','block05','block06');
  for(i=0;i<ids.length;i++)
  {
    document.getElementById(ids[i]).style.display = 'none';
  }
  document.getElementById(id).style.display = 'block';
}


function submitter(formular) {
		formular.submit();
}