anti-clic droit javascript

<script language="JavaScript1.2">
/*
SCRIPT EDITE H4CK3R
http://h4ck3r.ze-forum.com/
*/

function ejs_nodroit()
    {
    alert('Clic droit interdit');
    return(false);
    }

document.oncontextmenu = ejs_nodroit;
</script>