jQuery/jQueryUI no conflict http://stackoverflow.com/questions/15383126/jquery-jqueryui-conflict
<!-- load jQuery 1_8_3 -->
<script src="../assets/js/jquery-1.8.3.min.js"></script>
<script type="text/javascript">
var jQuery_1_8_3 = $.noConflict(true);
</script>
<!-- load jQuery 1.4.2 -->
<script type="text/javascript" src="jquery/jquery-1.4.2.js"></script>
<script type="text/javascript">
var jQuery_1_4_2= $.noConflict(true);
</script>