Disable right mouse click

Open templates/header.tpl

Find

Code:
 </head>
Add Above

Code:
{literal}
<script language=JavaScript>
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>
{/literal}

HOWTO