Remove this line:
<script type='text/javascript' src='filters/js/jquery.js'></script>
and replace this line:
<script type='text/javascript' src='js/jquery.js'></script>
with this:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
See if that fixes it... you have an older jquery library file on the page that could be causing issues.