var message="Copyright ©  2008 'PITON N.V.'. All rights reserved"; 

function clickIE()
 {
  if (document.all)
  {
   alert(message);
   return false;
  }
}

function clickNS(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=clickNS;
}
else
{
 document.onmouseup=clickNS;document.oncontextmenu=clickIE;
}

document.oncontextmenu=new Function("return false")