var menu; 

function showMenu (evt) { 

  if (document.all) { 

    document.all.contextMenu.style.pixelLeft = event.clientX; 

    document.all.contextMenu.style.pixelTop = event.clientY; 

    document.all.contextMenu.style.visibility = 'visible'; 

    return false; 

  } 

  else if (document.layers) { 

    if (evt.which == 3) { 

      document.contextMenu.left = evt.x; 

      document.contextMenu.top = evt.y; 

      document.contextMenu.onmouseout = 

        function (evt) { this.visibility = 'hide'; }; 

      document.contextMenu.visibility = 'show'; 

      return false; 

    } 

  } 

  return true; 

} 4444444

if (document.all) 

  document.oncontextmenu =showMenu; 

if (document.layers) { 

  document.captureEvents(Event.MOUSEDOWN); 

  document.onmousedown = showMenu; 

}