function showhide( id, value ) {

  if ( document.all )
    objecttochange = document.all[ id ];

  if ( document.getElementById ) 
    objecttochange = document.getElementById( id );

  if ( objecttochange ) {
    objecttochange.style.visibility = value ? '' : 'hidden';
    objecttochange.style.display    = value ? '' : 'none';
  }
                                                      
}

function showhiderow( id, value ) {

  if ( document.all )
    objecttochange = document.all[ id ];
  if ( document.getElementById ) 
    objecttochange = document.getElementById( id );

  if ( objecttochange )
    objecttochange.style.display = value ? '' : 'none';

}