var winHelp = null;

function openWindowHelp( url_text, hash ){

  try{
    topOffset = screen.availHeight - ( 373 + 30 );
    windowOption = "directories=0,width=542,height=373,location=0,resizable=0,scrollbars=1,status=0,titlebar=0,toolbar=0,menubar=0,alwaysLowered=1,z-lock=1,left=0,top=" + topOffset;
    if( winHelp == null ){
      winHelp = window.open( url_text + "#" + hash, "PortalHelpWindow", windowOption );
    } else {
      if( winHelp.closed ){
        winHelp = window.open( url_text + "#" + hash, "PortalHelpWindow", windowOption );
      }
    }
    if( winHelp.location.href != url_text + "#" + hash ){
        winHelp.location.href = url_text + "#" + hash;
    }
    if( winHelp.PortalHelpBody.location.hash != hash ){
      winHelp.PortalHelpBody.location.hash = hash;
    }
    winHelp.focus();
  } catch( _error ){
  }
  return true;

}