Block IP

<script language="javascript">
var ip = '<!--#echo var="REMOTE_ADDR"-->'
if (ip == '206.186.23.178') {
alert("STOP! You are viewing this page from an IP address that is not allowed!");
alert("Why can't you guys just leave me alone?");
if (confirm("Do you want to leave peacefully? Or will I have to help you?"))
{location.href="http://www.yahoo.com" } else { ("OK you choose I don't care! Bye bye! Don't come back!"); {location.href="http://www.yahoo.com" }} }
</script>