function ClearEditValue(edt){
   edt.value = '';
   return true;
}
function FillEditValue(edt,Msg){
   if (edt.value == '') {    
      edt.value = Msg;
   }
   return true;
}
function ShowDtnHelp(edt){
  document.getElementById('dtnhelptext').style.display = 'block';
  return true;
}
function HideDtnHelp(edt){
  var lbl ;
  lbl = document.getElementById('dtnhelptext');
  lbl.style.display = 'none';
  return true;
  }