<script type="text/javascript">
//Method one
//<![CDATA[
//document.oncontextmenu=new Function('event.returnValue=false;');
document.oncontextmenu = function (e) { e = e || window.event; e.returnValue = false; }
document.onselectstart = new Function('event.returnValue=false;');
//]]>
</script>
<!--Method two-->
<body oncontextmenu="return false" onselectstart="return false"></body>
