var message="Sorry, Right-Click is Disabled on this page";

function clickIE4()
{
  if( event.button == 2 ) {
    alert( message );
    return false;
  }
}

function clickNS4(e)
{
  if( document.layers || document.getElementById && !document.all ) {
    if( e.which==2 || e.which==3 ) {
      alert( message );
      return false;
    }
  }
}

if ( document.layers ) {
  document.captureEvents( Event.MOUSEDOWN );
  document.onmousedown = clickNS4;
}
else if( document.all && !document.getElementById ) {
  document.onmousedown=clickIE4;
}

document.oncontextmenu = new Function( "alert( message ); return false;" )