Javascript in Source gets Transposed

Hello,

I've been all over the place looking for an answer. Felt the easiest thing to do is post and see if any of you kind souls had a solution. We have a well oil installation of FCKEditor on our app. However there are a couple weird behaviors that I would like to remedy. This is one. When adding certain Javascript code in SOURCE view I'm finding various results where FCKEditor will transpose the Javascript and therefore render it dead or inoperable. This reveals itself when trying to add a simple script such as an AddThis bookmark.

I switch to SOURCE mode and paste the supplied script from AddThis. Here is the code going in:

<!-- AddThis Button BEGIN -->
<script type="text/javascript">var addthis_pub="haddthis";</script>
<a href="http://www.addthis.com/bookmark.php?v=20" onmouseover="return addthis_open(this, '', '[URL]', '[TITLE]')" onmouseout="addthis_close()" onclick="return addthis_sendto()"><img src="http://s7.addthis.com/static/btn/lg-bookmark-en.gif" width="125" height="16" alt="Bookmark and Share" style="border:0"/></a><script type="text/javascript" src="http://s7.addthis.com/js/200/addthis_widget.js"></script>
<!-- AddThis Button END -->