grav-ouidade.com/user/themes/ouidade/js/script.js

jQuery(document).ready(function($) {

  //window scrolls check
  $(window).scroll(function() {
      var topOfWindow = $(window).scrollTop();
      // console.log('topOfWindow',topOfWindow);
      if (topOfWindow > 100) {
          $("#top-bar").addClass("reduced");
      }
      else {
          $("#top-bar").removeClass("reduced");
      }
  });

  // init categories content images behaviour
  // console.log($(window).width());
  if( $(window).width() > 600 && $('body').is('.home')){


    // init Isotope
    var $grid = $('.grid').isotope({
      itemSelector: '.grid-block',
      transitionDuration: '0.4s'
    });

    // $('.grid .grid-block')
    //   .hide()
    //   .imagesLoaded().progress( function( imgLoad, image ) {
    //     // get item
    //     // image is imagesLoaded class, not <img>, <img> is image.img
    //     var $item = $( image.img ).parents('.grid-block');
    //     // un-hide item
    //     $item.show();
    //     // isotope does its thing
    //     $grid.appended( $item );
    //   });

    $grid.imagesLoaded().progress(function(){
      $grid.isotope('layout');
    });

    // filter items on button click
    $('nav.categories a').on( 'click', function(e) {
      e.preventDefault();
      if($(this).is('.active')){
        location.hash = '';
      }else{
        var filterValue = $(this).attr('data-filter');
        location.hash = encodeURIComponent( filterValue );
      }
      return false;
    });

    function onHashchange() {
      var hashFilter = decodeURIComponent(location.hash.replace('#', ''));
      $('nav.categories a').removeClass('active');
      if ( !hashFilter ) {
        $grid.isotope({filter: '*'});
      }else{
        $('nav.categories a[data-filter='+hashFilter+']').addClass('active');
        $grid.isotope({filter: '.'+hashFilter});
      }
    }

    $(window).on( 'hashchange', onHashchange );
    onHashchange();
  }
});