Method 1:
<script type="text/javascript" language="javascript">
$(document).ready(function(){
$(document).bind("contextmenu",function(e){
return false;
});
});
</script>
Method 2:
<script type="text/javascript" language="javascript">
$(document).ready(function(){
$(document).bind("contextmenu",function(e){
e.preventDefault();
});
});
</script>