Disable Mouse Right Click in IE ,Firefox & Google Chrome

<script type="text/javascript">
<!-- Disable Right Click in IE & Firefox -->
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")
</script>