Paste this code into the Header Custom markup to disable Right click on mouse for entire site.
<script type="text/javascript"
src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js">
</script>
<script type="text/javascript">
$(document).ready(function(){
$(document).bind("contextmenu",function(e){
return false;
});
});
</script>
