1 

     2       var $optionSets = $('#options .option-set'),

     3           $optionLinks = $optionSets.find('a');

     4 

     5       $optionLinks.click(function(){

     6         var $this = $(this);

     7         // don't proceed if already selected

     8         if ( $this.hasClass('selected') ) {

     9           return false;

    10         }

    11         var $optionSet = $this.parents('.option-set');

    12         $optionSet.find('.selected').removeClass('selected');

    13         $this.addClass('selected');

    14   

    15         // make option object dynamically, i.e. { filter: '.my-filter-class' }

    16         var options = {},

    17             key = $optionSet.attr('data-option-key'),

    18             value = $this.attr('data-option-value');

    19         // parse 'false' as false boolean

    20         value = value === 'false' ? false : value;

    21         options[ key ] = value;

    22         if ( key === 'layoutMode' && typeof changeLayoutMode === 'function' ) {

    23           // changes in layout modes need extra logic

    24           changeLayoutMode( $this, options )

    25         } else {

    26           // otherwise, apply new options

    27           $container.isotope( options );

    28         }

    29         

    30         return false;

    31       });