function right(e)

{

  if(navigator.appName=='Netscape'&& (e.wich==3||e.which==2))

    return false;

  else if(navigator.appName=='Microsoft Internet Explorer'&& (event.button==2||event.button==3))

  {

    alert(" © copyright Elephantos Amsterdam ");

    return false;

  }

  return true;

}

 

document.onmousedown=right;

if(document.layers) window.captureEvents(Event.MOUSEDOWN);

window.onmousedown=right;