$(document).ready(function() {
  // get the action filter option item on page load
  var $filterType = $('#filterOptions li.active a').attr('class');

  // get and assign the ourHolder element to the
  // $holder varible for use later
  var $holder = $('ul.ourHolder');

  // clone all items within the pre-assigned $holder element
  var $data = $holder.clone();

  // attempt to call Quicksand when a filter option
  // item is clicked
  $('#filterOptions li a').click(function(e) {
    // reset the active class on all the buttons
    $('#filterOptions li').removeClass('active');

    // assign the class of the clicked filter option
    // element to our $filterType variable
    var $filterType = $(this).attr('class');
    $(this).parent().addClass('active');
    if ($filterType == 'all') {
      // assign all li items to the $filteredData var when
      // the 'All' filter option is clicked
      var $filteredData = $data.find('li');	 
    }
    else {
      // find all li elements that have our required $filterType
      // values for the data-type element
      var $filteredData = $data.find('li[data-type=' + $filterType + ']');
    }

    // call quicksand and assign transition parameters
    $holder.quicksand($filteredData, {
      duration: 800,
      easing: 'easeInOutQuad',
	  useScaling: 	true,
	  enhancement:
     function() {
    //callback function, you will add your prettyPhoto function callback here.
    $("a[rel^='prettyPhoto']").prettyPhoto({
		theme: 'light_rounded',
		opacity: 0.45 /* Value between 0 and 1 */
	});
	
	

	// Hover effect
	$("a.thumb").hover(function() {
      $(this).stop().animate({opacity: "0.7"}, 'slow');
    },
    function() {
      $(this).stop().animate({opacity: "1"}, 'slow');
    });
	
   }
    });
    return false;
  });
});