If you have an issue on your site with the follow code showing in the source of all pages.  This is caused by having Kanga Joomsef installed.  You need to edit /public_html/components/com_sef/joomsef.php or you can download the edited files from here joomsef.php

Here is what the file will add to every page on your site;

$buf.='<div id="getmesome" style="text-indent:-9000em;margin-top:-50px">
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</div>';