var message="";

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

}

function clickNS(e)
{
 if (document.layers||(document.getElementById&&!document.all))
 {
   if (e.which==2||e.which==3)
   {(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")