select

This event is fired when an item from the context menu is selected via the keyboard.

<script type="text/javascript">
jQuery(function($) {
   $("#menu").shieldContextMenu({
              target: ".itemlist",
              filter: ".item",
              events: {                    
              select: function (e) {
                        alert(e.item.content);
                    }
                }
            });
});
</script>