Quicksand

// Custom sorting plugin
(function($) {
  $.fn.sorted = function(customOptions) {
    var options = {
      reversed: false,
      by: function(a) { return a.text(); }
    };
    $.extend(options, customOptions);
    $data = $(this);
    arr = $data.get();
    arr.sort(function(a, b) {
      var valA = options.by($(a));
      var valB = options.by($(b));
      if (options.reversed) {
        return (valA < valB) ? 1 : (valA > valB) ? -1 : 0;				
      } else {		
        return (valA < valB) ? -1 : (valA > valB) ? 1 : 0;	
      }
    });
    return $(arr);
  };
})(jQuery);

// DOMContentLoaded
$(function() {

  // bind radiobuttons in the form
  var $filterType = $('#filter input[name="type"]');
  var $filterSort = $('#filter input[name="sort"]');

  // get the first collection
  var $applications = $('#applications');

  // clone applications to get a second collection
  var $data = $applications.clone();

  // attempt to call Quicksand on every form change
  $filterType.add($filterSort).change(function(e) {
    if ($(filterTypeSelector + ':checked').val() == 'all') {
      var $filteredData = $data.find('li');
    } else {
      var $filteredData = $data.find(
        'li[data-type=' + $(filterTypeSelector + ":checked").val() + ']'
      );
    }

    // if sorted by size
    if ($(filterSortSelector + ':checked').val() == "size") {
      var $sortedData = $filteredData.sorted({
        by: function(v) {
          return parseFloat($(v).find('span[data-type=size]').text());
        }
      });
    } else {
    // if sorted by name
      var $sortedData = $filteredData.sorted({
        by: function(v) {
          return $(v).find('strong').text().toLowerCase();
        }
      });
    }

    // finally, call quicksand
    $applications.quicksand($sortedData, {
      duration: 800,
      easing: 'easeInOutQuad'
    });

  });

});

<form id="filter">
  <fieldset>
    <legend>Filter by type</legend>
    <label><input type="radio" name="type" value="all" checked="checked">Everything</label>
    <label><input type="radio" name="type" value="app">Applications</label>
    <label><input type="radio" name="type" value="util">Utilities</label>
  </fieldset>
  <fieldset>
    <legend>Sort by</legend>
    <label><input type="radio" name="sort" value="size" checked="checked">Size</label>
    <label><input type="radio" name="sort" value="name">Name</label>      
  </fieldset>
</form>

<ul id="applications" class="image-grid">
  <li data-id="id-1" data-type="util">
    <img src="activity-monitor.png" width="128" height="128" alt="" />
    <strong>Activity Monitor</strong>
    <span data-type="size">348 KB</span>
  </li>
  <li data-id="id-2" data-type="app">
    <img src="address-book.png" width="128" height="128" alt="" />
    <strong>Address Book</strong> 
    <span data-type="size">1904 KB</span>
  </li>
  <li data-id="id-3" data-type="app">
    <img src="finder.png" width="128" height="128" alt="" />
    <strong>Finder</strong> 
    <span data-type="size">1337 KB</span>
  </li>
  <li data-id="id-4" data-type="app">
    <img src="front-row.png" width="128" height="128" alt="" />
    <strong>Front Row</strong> 
    <span data-type="size">401 KB</span>
  </li>
  <li data-id="id-5" data-type="app">
    <img src="google-pokemon.png" width="128" height="128" alt="" />
    <strong>Google Pokémon</strong> 
    <span data-type="size">12875 KB</span>
  </li>
  <li data-id="id-6" data-type="app">
    <img src="ical.png" width="128" height="128" alt="" />
    <strong>iCal</strong> 
    <span data-type="size">5273 KB</span>
  </li>
  <li data-id="id-7" data-type="app">
    <img src="ichat.png" width="128" height="128" alt="" />
    <strong>iChat</strong> 
    <span data-type="size">5437 KB</span>
  </li>
  <li data-id="id-8" data-type="app">
    <img src="interface-builder.png" width="128" height="128" alt="" />
    <strong>Interface Builder</strong> 
    <span data-type="size">2764 KB</span>
  </li>
  <li data-id="id-9" data-type="app">
    <img src="ituna.png" width="128" height="128" alt="" />
    <strong>iTuna</strong> 
    <span data-type="size">17612 KB</span>
  </li>
  <li data-id="id-10" data-type="util">
    <img src="keychain-access.png" width="128" height="128" alt="" />
    <strong>Keychain Access</strong> 
    <span data-type="size">972 KB</span>
  </li>
  <li data-id="id-11" data-type="util">
    <img src="network-utility.png" width="128" height="128" alt="" />
    <strong>Network Utility</strong> 
    <span data-type="size">245 KB</span>
  </li>
  <li data-id="id-12" data-type="util">
    <img src="sync.png" width="128" height="128" alt="" />
    <strong>Sync</strong> 
    <span data-type="size">3788 KB</span>
  </li>
  <li data-id="id-13" data-type="app">
    <img src="textedit.png" width="128" height="128" alt="" />
    <strong>TextEdit</strong> 
    <span data-type="size">1669 KB</span>
  </li>
</ul>