how to disable right click with message window along with IP address ?

I want to disable right click on my website and would like to display a popup window on right click, along with the person's IP address who right clicked on my website, how to accoplish that ?
Till now i have added this script on my master page which disable right on I.E but doesn't popup any message window and it works in mozilla and shows popup. why message is not poping up in I.E ?
<script type="text/javascript">
            var message = "Right Click Have Been Disabled!";
            function clickIE() { if (document.all) { alert(message); return false; } }
            function clickNS(e) {
                if
(document.layers || (document.getElementById && !document ...