<script type="text/javascript">  
var message = "";  
function clickIE()  
{  
if (document.all) (message);  
return false;  
}  

function clickNS(e)  
{  
if (document.layers || (document.getElementById && !document.all))  
{  
if (e.which == 2)  
{  
(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");  
</script>