<Script Language="JavaScript">   
var message="Нельзя копировать!";   
function click(e) {if (document.all)   
{if (event.button == 2)   
{alert(message);return false;}}   
if (document.layers) {if (e.which == 3)   
{alert(message);return false;}}}   
if (document.layers)   
{document.captureEvents(Event.MouseDown);}   
document.onmousedown=click;   
</Script>