[JavaScript] Redirecting URL

<script type="text/javascript">
var oldDomain = "amacoder.tistory.com";
var newDomain = "procoder.tistory.com";
if(document.URL.match(oldDomain))
{
    var destination = document.URL.replace(oldDomain, newDomain);
    document.location.replace(destination);
}
if(document.URL.match(/^http:\/\/procoder.tistory.com(\/)?$/))
{
    document.location.replace("http://www.tistory.com/");
}
</script>