[#33693] Use jQuery insteand of document.write on email cloak

### Tracker
http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_id=8103&tracker_item_id=33693

Code by Fiorino De Santo

### How to test

make sure that the email cloaking still works as bevor.
Woops :D Thaks again. Fixed now with https://github.com/zero-24/joomla-cms/commit/11fe177d10d83d2fda7551e79236d40eb2117f86