Javascript(how to diasable right click on web page)

<%--Disabled Right Click in Web Page--%>

<SCRIPT TYPE="text/javascript">

<!--

    var message = "Sorry, right-click has been disabled";

    ///////////////////////////////////

    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")

// -->

</SCRIPT>

<%--End Disabled Right Click in Web Page--%>