You are including 2 versions of jQuery on your page and this probably creates a conflict. This:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
includes jQuery 1.3.2 and this:
<script type="text/javascript" src="js/smartmenus/libs/jquery-loader.js"></script>
includes 1.10.2.
Since I am not sure if your Lightbox plugin works with jQuery versions newer than 1.3.2, I would suggest doing the following:
1) Remove the SmartMenus jQuery code you currently use:
<!-- jQuery -->
<script type="text/javascript" src="js/smartmenus/libs/jquery-loader.js"></script>
<!-- SmartMenus jQuery plugin -->
<script type="text/javascript" src="js/smartmenus/jquery.smartmenus.js"></script>
<!-- SmartMenus jQuery init -->
<script type="text/javascript">
$(function() {
$('#main-menu').smartmenus({
subMenusSubOffsetX: 1,
subMenusSubOffsetY: -8
});
});
</script>
2) Configure your Lightbox so that it works as you wish.
3) Add the SmartMenus code like this:
<!-- jQuery -->
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
jQuery.noConflict();
</script>
<!-- SmartMenus jQuery plugin -->
<script type="text/javascript" src="js/smartmenus/jquery.smartmenus.js"></script>
<!-- SmartMenus jQuery init -->
<script type="text/javascript">
jQuery(function() {
jQuery('#main-menu').smartmenus({
subMenusSubOffsetX: 1,
subMenusSubOffsetY: -8
});
});
</script>
Let me know if you still have any troubles after that.