Alright,
I took a script from The JavaScript Source (http://javascript.internet.com/page-details/no-right-click.html) and modified it. It's really simple: I just removed a line of code.
I havn't tested it, but it should work. I'm not sure if Im even allowed to modify the code as such, but I think it'll be fine, as long as the copyright notices and such are there.
Code:
<SCRIPT LANGUAGE="JavaScript1.1">
<!-- Original: Martin Webb (martin@irt.org) -->
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Begin
function right(e) {
if (navigator.appName == 'Netscape' &&
(e.which == 3 || e.which == 2))
return false;
else if (navigator.appName == 'Microsoft Internet Explorer' &&
(event.button == 2 || event.button == 3)) {
return false;
}
return true;
}
document.onmousedown=right;
document.onmouseup=right;
if (document.layers) window.captureEvents(Event.MOUSEDOWN);
if (document.layers) window.captureEvents(Event.MOUSEUP);
window.onmousedown=right;
window.onmouseup=right;
// End -->
</script>
Hope that helps. 
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