function toggleElement( hThis, strElementId, strThisVisibleClass, strThisHiddenClass, strThisVisibleHTML, strThisHiddenHTML )

{

  var oElement = document.getElementById( strElementId );



  if ( oElement )

  {

    var bIsVisible = oElement.style.display != 'none';



    oElement.style.display = bIsVisible ? 'none' : 'block';

    

    if ( strThisVisibleClass != null && strThisHiddenClass != null )

    {

      hThis.className = bIsVisible ? strThisHiddenClass : strThisVisibleClass;



      if ( strThisVisibleHTML != null && strThisHiddenHTML != null )

        hThis.innerHTML = bIsVisible ? strThisHiddenHTML: strThisVisibleHTML;

    }



    return true;

  }



  return  false;

}