You are including the jquery
library multiple times. The following are redundant, choose one, and remove the rest. You probably want the jquery script to be the first one after your css <link>
s
<script type="text/javascript" src="jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="css/jquery.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript" src="css/jquery-latest.js"></script>
Probably not a bad idea to grab the most recent version from jquery.com and use that. Currently there are 2 choices (1.11.0 and 2.1.0) I'd suggest 1.11.0 unless you are ok disregarding older versions of internet explorer