$(document).ready(function() {
  $('body').append('<div class="simple_overlay" id="gallery"><div class="inner"></div></div>');
	
  $('.expose').overlay({
	  onBeforeLoad: function(e) {
	    var img = $(e.originalTarget).closest('.expose').attr('href');
	    $('#gallery .inner').html('<img src="'+ img +'" alt="" />');
  	  }, 
      target: '#gallery'
  });
});