/category.php

## category.php
<?php get_header(); ?>

				<?php

                $brand = get_field_object('field_583503060dc55');
                echo '<pre>';
                var_dump( $brand );
                echo '</pre>';

                ?>


	<main role="main">
		<!-- section -->
		<section class="section">
			<div class="card white">
				<h1><?php single_cat_title(); ?></h1>
				<div id="">
				<?php filter_herenschoenen(); ?>


				<script type="text/javascript">
				(function ($) {
				$('#search-herenschoenen').on('change', 'input[type="checkbox"]', function(){
				var $ul = $(this).closest('ul'),
				vals = [];

				$ul.find('input:checked').each(function(){
				vals.push( $(this).val() );
				});

				vals =  vals.join(",");
				window.location.replace('<?php echo home_url('category/herenschoenen'); ?>?brand=' + vals);

				console.log( vals );

				});
				})(jQuery);


				</script>


				</div>

				<div id="search-herenschoenen">

				<?php if (is_category( 'herenschoenen' )) : ?>
				<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen/">Alle Merken</a>
				<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen?brand=vanbommel">Van Bommel</a>
				<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen?brand=merk1">Merk 1</a>
				<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen?brand=merk2">Merk 2</a>
				<?php else : ?>
				test
				<?php endif; ?>


				</div>


			</div>
			<div class="row">
      			<div class="col s12 m7 l8">
				<?php get_template_part('loop'); ?>

				<?php get_template_part('pagination'); ?>
				</div>
    			<div class="col s12 m5 l4">
				<?php get_sidebar(); ?>
				</div>
      		</div>
		</section>
		<!-- /section -->
	</main>
<?php get_footer(); ?>

## functions.php
<?php
/*
 *  Author: Todd Motto | @toddmotto
 *  URL: html5blank.com | @html5blank
 *  Custom functions, support, custom post types and more.
 */

/*------------------------------------*\
	External Modules/Files
\*------------------------------------*/

// Load any external files you have here

/*------------------------------------*\
	Theme Support
\*------------------------------------*/

if (!isset($content_width))
{
    $content_width = 900;
}

if (function_exists('add_theme_support'))
{
    // Add Menu Support
    add_theme_support('menus');

    // Add Thumbnail Theme Support
    add_theme_support('post-thumbnails');
    add_image_size('large', 700, '', true); // Large Thumbnail
    add_image_size('medium', 250, '', true); // Medium Thumbnail
    add_image_size('small', 120, '', true); // Small Thumbnail
    add_image_size('custom-size', 700, 200, true); // Custom Thumbnail Size call using the_post_thumbnail('custom-size');

    // Add Support for Custom Backgrounds - Uncomment below if you're going to use
    /*add_theme_support('custom-background', array(
	'default-color' => 'FFF',
	'default-image' => get_template_directory_uri() . '/img/bg.jpg'
    ));*/

    // Add Support for Custom Header - Uncomment below if you're going to use
    /*add_theme_support('custom-header', array(
	'default-image'			=> get_template_directory_uri() . '/img/headers/default.jpg',
	'header-text'			=> false,
	'default-text-color'		=> '000',
	'width'				=> 1000,
	'height'			=> 198,
	'random-default'		=> false,
	'wp-head-callback'		=> $wphead_cb,
	'admin-head-callback'		=> $adminhead_cb,
	'admin-preview-callback'	=> $adminpreview_cb
    ));*/

    // Enables post and comment RSS feed links to head
    add_theme_support('automatic-feed-links');

    // Localisation Support
    // load_theme_textdomain('html5blank', get_template_directory() . '/languages');
}

/*------------------------------------*\
	Functions
\*------------------------------------*/

// HTML5 Blank navigation
function html5blank_nav()
{
	wp_nav_menu(
	array(
		'theme_location'  => 'header-menu',
		'menu'            => '',
		'container'       => 'div',
		'container_class' => 'menu-{menu slug}-container',
		'container_id'    => '',
		'menu_class'      => 'menu',
		'menu_id'         => '',
		'echo'            => true,
		'fallback_cb'     => 'wp_page_menu',
		'before'          => '',
		'after'           => '',
		'link_before'     => '',
		'link_after'      => '',
		'items_wrap'      => '<ul id="slide-out" class="side-nav black grey-text text-lighten-5">%3$s</ul>',
		'depth'           => 0,
		'walker'          => ''
		)
	);
}

// Load HTML5 Blank scripts (header.php)
function html5blank_header_scripts()
{
    if ($GLOBALS['pagenow'] != 'wp-login.php' && !is_admin()) {

        wp_register_script('modernizr', get_template_directory_uri() . '/js/lib/modernizr-2.7.1.min.js', array(), '2.7.1'); // Modernizr
        wp_enqueue_script('modernizr'); // Enqueue it!

        wp_register_script('materialize', get_template_directory_uri() . '/js/lib/materialize.min.js', array('jquery'), '0.9.87'); // Modernizr
        wp_enqueue_script('materialize'); // Enqueue it!

        wp_register_script('html5blankscripts', get_template_directory_uri() . '/js/scripts.js', array('jquery'), '1.0.0'); // Custom scripts
        wp_enqueue_script('html5blankscripts'); // Enqueue it!

        wp_register_script('googlemaps',  'https://maps.googleapis.com/maps/api/js?key=AIzaSyAmIPycZ1BiG_w_8TvnTx5AMlJyoowagfo', array('jquery'), '1.0.0'); // Custom scripts
        wp_enqueue_script('googlemaps'); // Enqueue it!

        }
}

// Load HTML5 Blank conditional scripts
function html5blank_conditional_scripts()
{
   if (is_page('pagenamehere')) {
        wp_register_script('scriptname', get_template_directory_uri() . '/js/scriptname.js', array('jquery'), '1.0.0'); // Conditional script(s)
        wp_enqueue_script('scriptname'); // Enqueue it!
    }
}

// Load HTML5 Blank styles
function html5blank_styles()
{

    wp_register_style('html5blank', get_template_directory_uri() . '/style.css', array(), '1.0', 'all');
    wp_enqueue_style('html5blank'); // Enqueue it!

    wp_register_style('materialize', get_template_directory_uri() . '/materialize.css', array(), '0.97.8', 'all');
    wp_enqueue_style('materialize'); // Enqueue it!
}

// Register HTML5 Blank Navigation
function register_html5_menu()
{
    register_nav_menus(array( // Using array to specify more menus if needed
        'header-menu' => __('Header Menu', 'html5blank'), // Main Navigation
        'sidebar-menu' => __('Sidebar Menu', 'html5blank'), // Sidebar Navigation
        'herenschoenen-menu' => __('Herenschoenen Menu', 'html5blank'), // Extra Navigation if needed (duplicate as many as you need!)
    ));
}

// Remove the <div> surrounding the dynamic navigation to cleanup markup
function my_wp_nav_menu_args($args = '')
{
    $args['container'] = false;
    return $args;
}

// Remove Injected classes, ID's and Page ID's from Navigation <li> items
function my_css_attributes_filter($var)
{
    return is_array($var) ? array() : '';
}

// Remove invalid rel attribute values in the categorylist
function remove_category_rel_from_category_list($thelist)
{
    return str_replace('rel="category tag"', 'rel="tag"', $thelist);
}

// Add page slug to body class, love this - Credit: Starkers Wordpress Theme
function add_slug_to_body_class($classes)
{
    global $post;
    if (is_home()) {
        $key = array_search('blog', $classes);
        if ($key > -1) {
            unset($classes[$key]);
        }
    } elseif (is_page()) {
        $classes[] = sanitize_html_class($post->post_name);
    } elseif (is_singular()) {
        $classes[] = sanitize_html_class($post->post_name);
    }

    return $classes;
}

// If Dynamic Sidebar Exists
if (function_exists('register_sidebar'))
{
    // Define Sidebar Widget Area 1
    register_sidebar(array(
        'name' => __('Widget Area 1', 'html5blank'),
        'description' => __('Description for this widget-area...', 'html5blank'),
        'id' => 'widget-area-1',
        'before_widget' => '<div id="%1$s" class="%2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>'
    ));

    // Define Sidebar Widget Area 2
    register_sidebar(array(
        'name' => __('Widget Area 2', 'html5blank'),
        'description' => __('Description for this widget-area...', 'html5blank'),
        'id' => 'widget-area-2',
        'before_widget' => '<div id="%1$s" class="%2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>'
    ));
}

// Remove wp_head() injected Recent Comment styles
function my_remove_recent_comments_style()
{
    global $wp_widget_factory;
    add_filter( 'show_recent_comments_widget_style', '__return_false' );
}

// Pagination for paged posts, Page 1, Page 2, Page 3, with Next and Previous Links, No plugin
function html5wp_pagination()
{
    global $wp_query;
    $big = 999999999;
    echo paginate_links(array(
        'base' => str_replace($big, '%#%', get_pagenum_link($big)),
        'format' => '?paged=%#%',
        'current' => max(1, get_query_var('paged')),
        'total' => $wp_query->max_num_pages

    ));
}

// Related posts
function ci_get_related_posts( $post_id, $args = array() ) {
  $args = wp_parse_args( (array) $args, array(
    'orderby' => 'rand',
    'return'  => 'query', // Valid values are: 'query' (WP_Query object), 'array' (the arguments array)
  ) );

  $related_args = array(
    'post_type'      => get_post_type( $post_id ),
    'posts_per_page' => 2,
    'post_status'    => 'publish',
    'post__not_in'   => array( $post_id ),
    'orderby'        => $args['orderby'],
    'tax_query'      => array()
  );

  $post       = get_post( $post_id );
  $taxonomies = get_object_taxonomies( $post, 'names' );

  foreach( $taxonomies as $taxonomy ) {
    $terms = get_the_terms( $post_id, $taxonomy );
    if ( empty( $terms ) ) continue;
    $term_list = wp_list_pluck( $terms, 'slug' );
    $related_args['tax_query'][] = array(
      'taxonomy' => $taxonomy,
      'field'    => 'slug',
      'terms'    => $term_list
    );
  }

  if( count( $related_args['tax_query'] ) > 1 ) {
    $related_args['tax_query']['relation'] = 'OR';
  }

  if( $args['return'] == 'query' ) {
    return new WP_Query( $related_args );
  } else {
    return $related_args;
  }
}

// Custom Excerpts
function html5wp_index($length) // Create 20 Word Callback for Index page Excerpts, call using html5wp_excerpt('html5wp_index');
{
    return 20;
}

// Create 40 Word Callback for Custom Post Excerpts, call using html5wp_excerpt('html5wp_custom_post');
function html5wp_custom_post($length)
{
    return 40;
}

// Create the Custom Excerpts callback
function html5wp_excerpt($length_callback = '', $more_callback = '')
{
    global $post;
    if (function_exists($length_callback)) {
        add_filter('excerpt_length', $length_callback);
    }
    if (function_exists($more_callback)) {
        add_filter('excerpt_more', $more_callback);
    }
    $output = get_the_excerpt();
    $output = apply_filters('wptexturize', $output);
    $output = apply_filters('convert_chars', $output);
    $output = '<p>' . $output . '</p>';
    echo $output;
}

// Custom View Article link to Post
function html5_blank_view_article($more)
{
    global $post;
    return '... <a class="view-article" href="' . get_permalink($post->ID) . '">' . __('View Article', 'html5blank') . '</a>';
}

// Remove Admin bar
function remove_admin_bar()
{
    return false;
}

// Remove 'text/css' from our enqueued stylesheet
function html5_style_remove($tag)
{
    return preg_replace('~\s+type=["\'][^"\']++["\']~', '', $tag);
}

// Remove thumbnail width and height dimensions that prevent fluid images in the_thumbnail
function remove_thumbnail_dimensions( $html )
{
    $html = preg_replace('/(width|height)=\"\d*\"\s/', "", $html);
    return $html;
}

// Custom Gravatar in Settings > Discussion
function html5blankgravatar ($avatar_defaults)
{
    $myavatar = get_template_directory_uri() . '/img/gravatar.jpg';
    $avatar_defaults[$myavatar] = "Custom Gravatar";
    return $avatar_defaults;
}

// Threaded Comments
function enable_threaded_comments()
{
    if (!is_admin()) {
        if (is_singular() AND comments_open() AND (get_option('thread_comments') == 1)) {
            wp_enqueue_script('comment-reply');
        }
    }
}

// Custom Comments Callback
function html5blankcomments($comment, $args, $depth)
{
	$GLOBALS['comment'] = $comment;
	extract($args, EXTR_SKIP);

	if ( 'div' == $args['style'] ) {
		$tag = 'div';
		$add_below = 'comment';
	} else {
		$tag = 'li';
		$add_below = 'div-comment';
	}
?>
    <!-- heads up: starting < for the html tag (li or div) in the next line: -->
    <<?php echo $tag ?> <?php comment_class(empty( $args['has_children'] ) ? '' : 'parent') ?> id="comment-<?php comment_ID() ?>">
	<?php if ( 'div' != $args['style'] ) : ?>
	<div id="div-comment-<?php comment_ID() ?>" class="comment-body">
	<?php endif; ?>
	<div class="comment-author vcard">
	<?php if ($args['avatar_size'] != 0) echo get_avatar( $comment, $args['180'] ); ?>
	<?php printf(__('<cite class="fn">%s</cite> <span class="says">says:</span>'), get_comment_author_link()) ?>
	</div>
    <?php if ($comment->comment_approved == '0') : ?>
	<em class="comment-awaiting-moderation"><?php _e('Your comment is awaiting moderation.') ?></em>
	<br />
    <?php endif; ?>

	<div class="comment-meta commentmetadata"><a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) ?>">
		<?php
			printf( __('%1$s at %2$s'), get_comment_date(),  get_comment_time()) ?></a><?php edit_comment_link(__('(Edit)'),'  ','' );
		?>
	</div>

	<?php comment_text() ?>

	<div class="reply">
	<?php comment_reply_link(array_merge( $args, array('add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
	</div>
	<?php if ( 'div' != $args['style'] ) : ?>
	</div>
	<?php endif; ?>
<?php }

/*------------------------------------*\
	Actions + Filters + ShortCodes
\*------------------------------------*/

// Add Actions

add_action('init', 'html5blank_header_scripts'); // Add Custom Scripts to wp_head
add_action('wp_print_scripts', 'html5blank_conditional_scripts'); // Add Conditional Page Scripts
add_action('get_header', 'enable_threaded_comments'); // Enable Threaded Comments
add_action('wp_enqueue_scripts', 'html5blank_styles'); // Add Theme Stylesheet
add_action('init', 'register_html5_menu'); // Add HTML5 Blank Menu
add_action('init', 'create_post_type_html5'); // Add our HTML5 Blank Custom Post Type
add_action('widgets_init', 'my_remove_recent_comments_style'); // Remove inline Recent Comment Styles from wp_head()
add_action('init', 'html5wp_pagination'); // Add our HTML5 Pagination


// Remove Actions
remove_action('wp_head', 'feed_links_extra', 3); // Display the links to the extra feeds such as category feeds
remove_action('wp_head', 'feed_links', 2); // Display the links to the general feeds: Post and Comment Feed
remove_action('wp_head', 'rsd_link'); // Display the link to the Really Simple Discovery service endpoint, EditURI link
remove_action('wp_head', 'wlwmanifest_link'); // Display the link to the Windows Live Writer manifest file.
remove_action('wp_head', 'index_rel_link'); // Index link
remove_action('wp_head', 'parent_post_rel_link', 10, 0); // Prev link
remove_action('wp_head', 'start_post_rel_link', 10, 0); // Start link
remove_action('wp_head', 'adjacent_posts_rel_link', 10, 0); // Display relational links for the posts adjacent to the current post.
remove_action('wp_head', 'wp_generator'); // Display the XHTML generator that is generated on the wp_head hook, WP version
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);
remove_action('wp_head', 'rel_canonical');
remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);

// Add Filters
add_filter('avatar_defaults', 'html5blankgravatar'); // Custom Gravatar in Settings > Discussion
add_filter('body_class', 'add_slug_to_body_class'); // Add slug to body class (Starkers build)
add_filter('widget_text', 'do_shortcode'); // Allow shortcodes in Dynamic Sidebar
add_filter('widget_text', 'shortcode_unautop'); // Remove <p> tags in Dynamic Sidebars (better!)
add_filter('wp_nav_menu_args', 'my_wp_nav_menu_args'); // Remove surrounding <div> from WP Navigation
// add_filter('nav_menu_css_class', 'my_css_attributes_filter', 100, 1); // Remove Navigation <li> injected classes (Commented out by default)
// add_filter('nav_menu_item_id', 'my_css_attributes_filter', 100, 1); // Remove Navigation <li> injected ID (Commented out by default)
// add_filter('page_css_class', 'my_css_attributes_filter', 100, 1); // Remove Navigation <li> Page ID's (Commented out by default)
add_filter('the_category', 'remove_category_rel_from_category_list'); // Remove invalid rel attribute
add_filter('the_excerpt', 'shortcode_unautop'); // Remove auto <p> tags in Excerpt (Manual Excerpts only)
add_filter('the_excerpt', 'do_shortcode'); // Allows Shortcodes to be executed in Excerpt (Manual Excerpts only)
add_filter('excerpt_more', 'html5_blank_view_article'); // Add 'View Article' button instead of [...] for Excerpts
add_filter('show_admin_bar', 'remove_admin_bar'); // Remove Admin bar
add_filter('style_loader_tag', 'html5_style_remove'); // Remove 'text/css' from enqueued stylesheet
add_filter('post_thumbnail_html', 'remove_thumbnail_dimensions', 10); // Remove width and height dynamic attributes to thumbnails
add_filter('image_send_to_editor', 'remove_thumbnail_dimensions', 10); // Remove width and height dynamic attributes to post images

// Remove Filters
remove_filter('the_excerpt', 'wpautop'); // Remove <p> tags from Excerpt altogether

// Shortcodes
add_shortcode('html5_shortcode_demo', 'html5_shortcode_demo'); // You can place [html5_shortcode_demo] in Pages, Posts now.
add_shortcode('html5_shortcode_demo_2', 'html5_shortcode_demo_2'); // Place [html5_shortcode_demo_2] in Pages, Posts now.

// Shortcodes above would be nested like this -
// [html5_shortcode_demo] [html5_shortcode_demo_2] Here's the page title! [/html5_shortcode_demo_2] [/html5_shortcode_demo]

/*------------------------------------*\
	Custom Post Types
\*------------------------------------*/

// Create 1 Custom Post type for a Demo, called HTML5-Blank
function create_post_type_html5()
{
    register_taxonomy_for_object_type('category', 'html5-blank'); // Register Taxonomies for Category
    register_taxonomy_for_object_type('post_tag', 'html5-blank');
    register_post_type('html5-blank', // Register Custom Post Type
        array(
        'labels' => array(
            'name' => __('HTML5 Blank Custom Post', 'html5blank'), // Rename these to suit
            'singular_name' => __('HTML5 Blank Custom Post', 'html5blank'),
            'add_new' => __('Add New', 'html5blank'),
            'add_new_item' => __('Add New HTML5 Blank Custom Post', 'html5blank'),
            'edit' => __('Edit', 'html5blank'),
            'edit_item' => __('Edit HTML5 Blank Custom Post', 'html5blank'),
            'new_item' => __('New HTML5 Blank Custom Post', 'html5blank'),
            'view' => __('View HTML5 Blank Custom Post', 'html5blank'),
            'view_item' => __('View HTML5 Blank Custom Post', 'html5blank'),
            'search_items' => __('Search HTML5 Blank Custom Post', 'html5blank'),
            'not_found' => __('No HTML5 Blank Custom Posts found', 'html5blank'),
            'not_found_in_trash' => __('No HTML5 Blank Custom Posts found in Trash', 'html5blank')
        ),
        'public' => true,
        'hierarchical' => true, // Allows your posts to behave like Hierarchy Pages
        'has_archive' => true,
        'supports' => array(
            'title',
            'editor',
            'excerpt',
            'thumbnail'
        ), // Go to Dashboard Custom HTML5 Blank post for supports
        'can_export' => true, // Allows export in Tools > Export
        'taxonomies' => array(
            'post_tag',
            'category'
        ) // Add Category and Post Tags support
    ));
}

/*------------------------------------*\
	ShortCode Functions
\*------------------------------------*/

// Shortcode Demo with Nested Capability
function html5_shortcode_demo($atts, $content = null)
{
    return '<div class="shortcode-demo">' . do_shortcode($content) . '</div>'; // do_shortcode allows for nested Shortcodes
}

// Shortcode Demo with simple <h2> tag
function html5_shortcode_demo_2($atts, $content = null) // Demo Heading H2 shortcode, allows for nesting within above element. Fully expandable.
{
    return '<h2>' . $content . '</h2>';
}

/*------------------------------------*\
	ACF Google Maps
\*------------------------------------*/
function my_acf_init() {
acf_update_setting('google_api_key', 'AIzaSyAmIPycZ1BiG_w_8TvnTx5AMlJyoowagfo');
}

add_action('acf/init', 'my_acf_init');

/*------------------------------------*\
	ACF Custom field Search
\*------------------------------------*/
function cf_search_join( $join ) {
    global $wpdb;

    if ( is_search() ) {
        $join .=' LEFT JOIN '.$wpdb->postmeta. ' ON '. $wpdb->posts . '.ID = ' . $wpdb->postmeta . '.post_id ';
    }

    return $join;
}
add_filter('posts_join', 'cf_search_join' );

function cf_search_where( $where ) {
    global $pagenow, $wpdb;

    if ( is_search() ) {
        $where = preg_replace(
            "/\(\s*".$wpdb->posts.".post_title\s+LIKE\s*(\'[^\']+\')\s*\)/",
            "(".$wpdb->posts.".post_title LIKE $1) OR (".$wpdb->postmeta.".meta_value LIKE $1)", $where );
    }

    return $where;
}
add_filter( 'posts_where', 'cf_search_where' );

function cf_search_distinct( $where ) {
    global $wpdb;

    if ( is_search() ) {
        return "DISTINCT";
    }

    return $where;
}
add_filter( 'posts_distinct', 'cf_search_distinct' );

/*------------------------------------*\
	ACF Custom field filter
\*------------------------------------*/

// array of filters (field key => field name)
$GLOBALS['my_query_filters'] = array(
	'field_583503060dc55'	=> 'brand',
);

// action

function my_pre_get_posts( $query ) {

	// bail early if is in admin
	if( is_admin() ) {
		return;
	}

	// get meta query
	$meta_query = $query->get('meta_query');

	// loop over filters
	foreach( $GLOBALS['my_query_filters'] as $key => $name ) {

		// continue if not found in url
		if( empty($_GET[ $name ]) ) {
			continue;
		}

		// get the value for this filter
		// eg: http://www.website.com/events?city=melbourne,sydney
		$value = explode(',', $_GET[ $name ]);


		// append meta query
    	$meta_query[] = array(
            'key'		=> $name,
            'value'		=> $value,
            'compare'	=> 'IN',
        );

	}

	// update meta query
	$query->set('meta_query', $meta_query);
}

add_action('pre_get_posts', 'my_pre_get_posts', 10, 1);

function filter_herenschoenen() {

    foreach( $GLOBALS['my_query_filters'] as $key => $name ):

        // get the field's settings without attempting to load a value
        $field = get_field_object($key, false, false);


        // set value if available
        if( isset($_GET[ $name ]) ) {

            $field['value'] = explode(',', $_GET[ $name ]);

        }


        // create filter
        ?>
        <div class="filter" data-filter="<?php echo $name; ?>">
            <?php create_field( $field ); ?>
        </div>

    <?php endforeach;

}

?>

## scripts.js
$(document).ready(function() {
$("#acf-field_583503060dc55").material_select()
});
	<?php get_header(); ?>

	<?php

	$brand = get_field_object('field_583503060dc55');
	echo '<pre>';
	var_dump( $brand );
	echo '</pre>';

	?>


	<main role="main">
	<!-- section -->
	<section class="section">
	<div class="card white">
	<h1><?php single_cat_title(); ?></h1>
	<div id="">
	<?php filter_herenschoenen(); ?>


	<script type="text/javascript">
	(function ($) {
	$('#search-herenschoenen').on('change', 'input[type="checkbox"]', function(){
	var $ul = $(this).closest('ul'),
	vals = [];

	$ul.find('input:checked').each(function(){
	vals.push( $(this).val() );
	});

	vals = vals.join(",");
	window.location.replace('<?php echo home_url('category/herenschoenen'); ?>?brand=' + vals);

	console.log( vals );

	});
	})(jQuery);


	</script>



	</div>

	<div id="search-herenschoenen">

	<?php if (is_category( 'herenschoenen' )) : ?>
	<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen/">Alle Merken</a>
	<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen?brand=vanbommel">Van Bommel</a>
	<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen?brand=merk1">Merk 1</a>
	<a class="waves-effect waves-teal btn-flat" href="/category/herenschoenen?brand=merk2">Merk 2</a>
	<?php else : ?>
	test
	<?php endif; ?>


	</div>


	</div>
	<div class="row">
	<div class="col s12 m7 l8">
	<?php get_template_part('loop'); ?>

	<?php get_template_part('pagination'); ?>
	</div>
	<div class="col s12 m5 l4">
	<?php get_sidebar(); ?>
	</div>
	</div>
	</section>
	<!-- /section -->
	</main>
	<?php get_footer(); ?>
	<?php
	/*
	* Author: Todd Motto \| @toddmotto
	* URL: html5blank.com \| @html5blank
	* Custom functions, support, custom post types and more.
	*/

	/------------------------------------\
	External Modules/Files
	\------------------------------------/

	// Load any external files you have here

	/------------------------------------\
	Theme Support
	\------------------------------------/

	if (!isset($content_width))
	{
	$content_width = 900;
	}

	if (function_exists('add_theme_support'))
	{
	// Add Menu Support
	add_theme_support('menus');

	// Add Thumbnail Theme Support
	add_theme_support('post-thumbnails');
	add_image_size('large', 700, '', true); // Large Thumbnail
	add_image_size('medium', 250, '', true); // Medium Thumbnail
	add_image_size('small', 120, '', true); // Small Thumbnail
	add_image_size('custom-size', 700, 200, true); // Custom Thumbnail Size call using the_post_thumbnail('custom-size');

	// Add Support for Custom Backgrounds - Uncomment below if you're going to use
	/*add_theme_support('custom-background', array(
	'default-color' => 'FFF',
	'default-image' => get_template_directory_uri() . '/img/bg.jpg'
	));*/

	// Add Support for Custom Header - Uncomment below if you're going to use
	/*add_theme_support('custom-header', array(
	'default-image' => get_template_directory_uri() . '/img/headers/default.jpg',
	'header-text' => false,
	'default-text-color' => '000',
	'width' => 1000,
	'height' => 198,
	'random-default' => false,
	'wp-head-callback' => $wphead_cb,
	'admin-head-callback' => $adminhead_cb,
	'admin-preview-callback' => $adminpreview_cb
	));*/

	// Enables post and comment RSS feed links to head
	add_theme_support('automatic-feed-links');

	// Localisation Support
	// load_theme_textdomain('html5blank', get_template_directory() . '/languages');
	}

	/------------------------------------\
	Functions
	\------------------------------------/

	// HTML5 Blank navigation
	function html5blank_nav()
	{
	wp_nav_menu(
	array(
	'theme_location' => 'header-menu',
	'menu' => '',
	'container' => 'div',
	'container_class' => 'menu-{menu slug}-container',
	'container_id' => '',
	'menu_class' => 'menu',
	'menu_id' => '',
	'echo' => true,
	'fallback_cb' => 'wp_page_menu',
	'before' => '',
	'after' => '',
	'link_before' => '',
	'link_after' => '',
	'items_wrap' => '<ul id="slide-out" class="side-nav black grey-text text-lighten-5">%3$s</ul>',
	'depth' => 0,
	'walker' => ''
	)
	);
	}

	// Load HTML5 Blank scripts (header.php)
	function html5blank_header_scripts()
	{
	if ($GLOBALS['pagenow'] != 'wp-login.php' && !is_admin()) {

	wp_register_script('modernizr', get_template_directory_uri() . '/js/lib/modernizr-2.7.1.min.js', array(), '2.7.1'); // Modernizr
	wp_enqueue_script('modernizr'); // Enqueue it!

	wp_register_script('materialize', get_template_directory_uri() . '/js/lib/materialize.min.js', array('jquery'), '0.9.87'); // Modernizr
	wp_enqueue_script('materialize'); // Enqueue it!

	wp_register_script('html5blankscripts', get_template_directory_uri() . '/js/scripts.js', array('jquery'), '1.0.0'); // Custom scripts
	wp_enqueue_script('html5blankscripts'); // Enqueue it!

	wp_register_script('googlemaps', 'https://maps.googleapis.com/maps/api/js?key=AIzaSyAmIPycZ1BiG_w_8TvnTx5AMlJyoowagfo', array('jquery'), '1.0.0'); // Custom scripts
	wp_enqueue_script('googlemaps'); // Enqueue it!

	}
	}

	// Load HTML5 Blank conditional scripts
	function html5blank_conditional_scripts()
	{
	if (is_page('pagenamehere')) {
	wp_register_script('scriptname', get_template_directory_uri() . '/js/scriptname.js', array('jquery'), '1.0.0'); // Conditional script(s)
	wp_enqueue_script('scriptname'); // Enqueue it!
	}
	}

	// Load HTML5 Blank styles
	function html5blank_styles()
	{

	wp_register_style('html5blank', get_template_directory_uri() . '/style.css', array(), '1.0', 'all');
	wp_enqueue_style('html5blank'); // Enqueue it!

	wp_register_style('materialize', get_template_directory_uri() . '/materialize.css', array(), '0.97.8', 'all');
	wp_enqueue_style('materialize'); // Enqueue it!
	}

	// Register HTML5 Blank Navigation
	function register_html5_menu()
	{
	register_nav_menus(array( // Using array to specify more menus if needed
	'header-menu' => __('Header Menu', 'html5blank'), // Main Navigation
	'sidebar-menu' => __('Sidebar Menu', 'html5blank'), // Sidebar Navigation
	'herenschoenen-menu' => __('Herenschoenen Menu', 'html5blank'), // Extra Navigation if needed (duplicate as many as you need!)
	));
	}

	// Remove the <div> surrounding the dynamic navigation to cleanup markup
	function my_wp_nav_menu_args($args = '')
	{
	$args['container'] = false;
	return $args;
	}

	// Remove Injected classes, ID's and Page ID's from Navigation <li> items
	function my_css_attributes_filter($var)
	{
	return is_array($var) ? array() : '';
	}

	// Remove invalid rel attribute values in the categorylist
	function remove_category_rel_from_category_list($thelist)
	{
	return str_replace('rel="category tag"', 'rel="tag"', $thelist);
	}

	// Add page slug to body class, love this - Credit: Starkers Wordpress Theme
	function add_slug_to_body_class($classes)
	{
	global $post;
	if (is_home()) {
	$key = array_search('blog', $classes);
	if ($key > -1) {
	unset($classes[$key]);
	}
	} elseif (is_page()) {
	$classes[] = sanitize_html_class($post->post_name);
	} elseif (is_singular()) {
	$classes[] = sanitize_html_class($post->post_name);
	}

	return $classes;
	}

	// If Dynamic Sidebar Exists
	if (function_exists('register_sidebar'))
	{
	// Define Sidebar Widget Area 1
	register_sidebar(array(
	'name' => __('Widget Area 1', 'html5blank'),
	'description' => __('Description for this widget-area...', 'html5blank'),
	'id' => 'widget-area-1',
	'before_widget' => '<div id="%1$s" class="%2$s">',
	'after_widget' => '</div>',
	'before_title' => '<h3>',
	'after_title' => '</h3>'
	));

	// Define Sidebar Widget Area 2
	register_sidebar(array(
	'name' => __('Widget Area 2', 'html5blank'),
	'description' => __('Description for this widget-area...', 'html5blank'),
	'id' => 'widget-area-2',
	'before_widget' => '<div id="%1$s" class="%2$s">',
	'after_widget' => '</div>',
	'before_title' => '<h3>',
	'after_title' => '</h3>'
	));
	}

	// Remove wp_head() injected Recent Comment styles
	function my_remove_recent_comments_style()
	{
	global $wp_widget_factory;
	add_filter( 'show_recent_comments_widget_style', '__return_false' );
	}

	// Pagination for paged posts, Page 1, Page 2, Page 3, with Next and Previous Links, No plugin
	function html5wp_pagination()
	{
	global $wp_query;
	$big = 999999999;
	echo paginate_links(array(
	'base' => str_replace($big, '%#%', get_pagenum_link($big)),
	'format' => '?paged=%#%',
	'current' => max(1, get_query_var('paged')),
	'total' => $wp_query->max_num_pages

	));
	}

	// Related posts
	function ci_get_related_posts( $post_id, $args = array() ) {
	$args = wp_parse_args( (array) $args, array(
	'orderby' => 'rand',
	'return' => 'query', // Valid values are: 'query' (WP_Query object), 'array' (the arguments array)
	) );

	$related_args = array(
	'post_type' => get_post_type( $post_id ),
	'posts_per_page' => 2,
	'post_status' => 'publish',
	'post__not_in' => array( $post_id ),
	'orderby' => $args['orderby'],
	'tax_query' => array()
	);

	$post = get_post( $post_id );
	$taxonomies = get_object_taxonomies( $post, 'names' );

	foreach( $taxonomies as $taxonomy ) {
	$terms = get_the_terms( $post_id, $taxonomy );
	if ( empty( $terms ) ) continue;
	$term_list = wp_list_pluck( $terms, 'slug' );
	$related_args['tax_query'][] = array(
	'taxonomy' => $taxonomy,
	'field' => 'slug',
	'terms' => $term_list
	);
	}

	if( count( $related_args['tax_query'] ) > 1 ) {
	$related_args['tax_query']['relation'] = 'OR';
	}

	if( $args['return'] == 'query' ) {
	return new WP_Query( $related_args );
	} else {
	return $related_args;
	}
	}

	// Custom Excerpts
	function html5wp_index($length) // Create 20 Word Callback for Index page Excerpts, call using html5wp_excerpt('html5wp_index');
	{
	return 20;
	}

	// Create 40 Word Callback for Custom Post Excerpts, call using html5wp_excerpt('html5wp_custom_post');
	function html5wp_custom_post($length)
	{
	return 40;
	}

	// Create the Custom Excerpts callback
	function html5wp_excerpt($length_callback = '', $more_callback = '')
	{
	global $post;
	if (function_exists($length_callback)) {
	add_filter('excerpt_length', $length_callback);
	}
	if (function_exists($more_callback)) {
	add_filter('excerpt_more', $more_callback);
	}
	$output = get_the_excerpt();
	$output = apply_filters('wptexturize', $output);
	$output = apply_filters('convert_chars', $output);
	$output = '<p>' . $output . '</p>';
	echo $output;
	}

	// Custom View Article link to Post
	function html5_blank_view_article($more)
	{
	global $post;
	return '... <a class="view-article" href="' . get_permalink($post->ID) . '">' . __('View Article', 'html5blank') . '</a>';
	}

	// Remove Admin bar
	function remove_admin_bar()
	{
	return false;
	}

	// Remove 'text/css' from our enqueued stylesheet
	function html5_style_remove($tag)
	{
	return preg_replace('~\s+type=["\'][^"\']++["\']~', '', $tag);
	}

	// Remove thumbnail width and height dimensions that prevent fluid images in the_thumbnail
	function remove_thumbnail_dimensions( $html )
	{
	$html = preg_replace('/(width\|height)=\"\d*\"\s/', "", $html);
	return $html;
	}

	// Custom Gravatar in Settings > Discussion
	function html5blankgravatar ($avatar_defaults)
	{
	$myavatar = get_template_directory_uri() . '/img/gravatar.jpg';
	$avatar_defaults[$myavatar] = "Custom Gravatar";
	return $avatar_defaults;
	}

	// Threaded Comments
	function enable_threaded_comments()
	{
	if (!is_admin()) {
	if (is_singular() AND comments_open() AND (get_option('thread_comments') == 1)) {
	wp_enqueue_script('comment-reply');
	}
	}
	}

	// Custom Comments Callback
	function html5blankcomments($comment, $args, $depth)
	{
	$GLOBALS['comment'] = $comment;
	extract($args, EXTR_SKIP);

	if ( 'div' == $args['style'] ) {
	$tag = 'div';
	$add_below = 'comment';
	} else {
	$tag = 'li';
	$add_below = 'div-comment';
	}
	?>
	<!-- heads up: starting < for the html tag (li or div) in the next line: -->
	<<?php echo $tag ?> <?php comment_class(empty( $args['has_children'] ) ? '' : 'parent') ?> id="comment-<?php comment_ID() ?>">
	<?php if ( 'div' != $args['style'] ) : ?>
	<div id="div-comment-<?php comment_ID() ?>" class="comment-body">
	<?php endif; ?>
	<div class="comment-author vcard">
	<?php if ($args['avatar_size'] != 0) echo get_avatar( $comment, $args['180'] ); ?>
	<?php printf(__('<cite class="fn">%s</cite> <span class="says">says:</span>'), get_comment_author_link()) ?>
	</div>
	<?php if ($comment->comment_approved == '0') : ?>
	<em class="comment-awaiting-moderation"><?php _e('Your comment is awaiting moderation.') ?></em>
	<br />
	<?php endif; ?>

	<div class="comment-meta commentmetadata"><a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) ?>">
	<?php
	printf( __('%1$s at %2$s'), get_comment_date(), get_comment_time()) ?></a><?php edit_comment_link(__('(Edit)'),' ','' );
	?>
	</div>

	<?php comment_text() ?>

	<div class="reply">
	<?php comment_reply_link(array_merge( $args, array('add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
	</div>
	<?php if ( 'div' != $args['style'] ) : ?>
	</div>
	<?php endif; ?>
	<?php }

	/------------------------------------\
	Actions + Filters + ShortCodes
	\------------------------------------/

	// Add Actions

	add_action('init', 'html5blank_header_scripts'); // Add Custom Scripts to wp_head
	add_action('wp_print_scripts', 'html5blank_conditional_scripts'); // Add Conditional Page Scripts
	add_action('get_header', 'enable_threaded_comments'); // Enable Threaded Comments
	add_action('wp_enqueue_scripts', 'html5blank_styles'); // Add Theme Stylesheet
	add_action('init', 'register_html5_menu'); // Add HTML5 Blank Menu
	add_action('init', 'create_post_type_html5'); // Add our HTML5 Blank Custom Post Type
	add_action('widgets_init', 'my_remove_recent_comments_style'); // Remove inline Recent Comment Styles from wp_head()
	add_action('init', 'html5wp_pagination'); // Add our HTML5 Pagination


	// Remove Actions
	remove_action('wp_head', 'feed_links_extra', 3); // Display the links to the extra feeds such as category feeds
	remove_action('wp_head', 'feed_links', 2); // Display the links to the general feeds: Post and Comment Feed
	remove_action('wp_head', 'rsd_link'); // Display the link to the Really Simple Discovery service endpoint, EditURI link
	remove_action('wp_head', 'wlwmanifest_link'); // Display the link to the Windows Live Writer manifest file.
	remove_action('wp_head', 'index_rel_link'); // Index link
	remove_action('wp_head', 'parent_post_rel_link', 10, 0); // Prev link
	remove_action('wp_head', 'start_post_rel_link', 10, 0); // Start link
	remove_action('wp_head', 'adjacent_posts_rel_link', 10, 0); // Display relational links for the posts adjacent to the current post.
	remove_action('wp_head', 'wp_generator'); // Display the XHTML generator that is generated on the wp_head hook, WP version
	remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);
	remove_action('wp_head', 'rel_canonical');
	remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);

	// Add Filters
	add_filter('avatar_defaults', 'html5blankgravatar'); // Custom Gravatar in Settings > Discussion
	add_filter('body_class', 'add_slug_to_body_class'); // Add slug to body class (Starkers build)
	add_filter('widget_text', 'do_shortcode'); // Allow shortcodes in Dynamic Sidebar
	add_filter('widget_text', 'shortcode_unautop'); // Remove <p> tags in Dynamic Sidebars (better!)
	add_filter('wp_nav_menu_args', 'my_wp_nav_menu_args'); // Remove surrounding <div> from WP Navigation
	// add_filter('nav_menu_css_class', 'my_css_attributes_filter', 100, 1); // Remove Navigation <li> injected classes (Commented out by default)
	// add_filter('nav_menu_item_id', 'my_css_attributes_filter', 100, 1); // Remove Navigation <li> injected ID (Commented out by default)
	// add_filter('page_css_class', 'my_css_attributes_filter', 100, 1); // Remove Navigation <li> Page ID's (Commented out by default)
	add_filter('the_category', 'remove_category_rel_from_category_list'); // Remove invalid rel attribute
	add_filter('the_excerpt', 'shortcode_unautop'); // Remove auto <p> tags in Excerpt (Manual Excerpts only)
	add_filter('the_excerpt', 'do_shortcode'); // Allows Shortcodes to be executed in Excerpt (Manual Excerpts only)
	add_filter('excerpt_more', 'html5_blank_view_article'); // Add 'View Article' button instead of [...] for Excerpts
	add_filter('show_admin_bar', 'remove_admin_bar'); // Remove Admin bar
	add_filter('style_loader_tag', 'html5_style_remove'); // Remove 'text/css' from enqueued stylesheet
	add_filter('post_thumbnail_html', 'remove_thumbnail_dimensions', 10); // Remove width and height dynamic attributes to thumbnails
	add_filter('image_send_to_editor', 'remove_thumbnail_dimensions', 10); // Remove width and height dynamic attributes to post images

	// Remove Filters
	remove_filter('the_excerpt', 'wpautop'); // Remove <p> tags from Excerpt altogether

	// Shortcodes
	add_shortcode('html5_shortcode_demo', 'html5_shortcode_demo'); // You can place [html5_shortcode_demo] in Pages, Posts now.
	add_shortcode('html5_shortcode_demo_2', 'html5_shortcode_demo_2'); // Place [html5_shortcode_demo_2] in Pages, Posts now.

	// Shortcodes above would be nested like this -
	// [html5_shortcode_demo] [html5_shortcode_demo_2] Here's the page title! [/html5_shortcode_demo_2] [/html5_shortcode_demo]

	/------------------------------------\
	Custom Post Types
	\------------------------------------/

	// Create 1 Custom Post type for a Demo, called HTML5-Blank
	function create_post_type_html5()
	{
	register_taxonomy_for_object_type('category', 'html5-blank'); // Register Taxonomies for Category
	register_taxonomy_for_object_type('post_tag', 'html5-blank');
	register_post_type('html5-blank', // Register Custom Post Type
	array(
	'labels' => array(
	'name' => __('HTML5 Blank Custom Post', 'html5blank'), // Rename these to suit
	'singular_name' => __('HTML5 Blank Custom Post', 'html5blank'),
	'add_new' => __('Add New', 'html5blank'),
	'add_new_item' => __('Add New HTML5 Blank Custom Post', 'html5blank'),
	'edit' => __('Edit', 'html5blank'),
	'edit_item' => __('Edit HTML5 Blank Custom Post', 'html5blank'),
	'new_item' => __('New HTML5 Blank Custom Post', 'html5blank'),
	'view' => __('View HTML5 Blank Custom Post', 'html5blank'),
	'view_item' => __('View HTML5 Blank Custom Post', 'html5blank'),
	'search_items' => __('Search HTML5 Blank Custom Post', 'html5blank'),
	'not_found' => __('No HTML5 Blank Custom Posts found', 'html5blank'),
	'not_found_in_trash' => __('No HTML5 Blank Custom Posts found in Trash', 'html5blank')
	),
	'public' => true,
	'hierarchical' => true, // Allows your posts to behave like Hierarchy Pages
	'has_archive' => true,
	'supports' => array(
	'title',
	'editor',
	'excerpt',
	'thumbnail'
	), // Go to Dashboard Custom HTML5 Blank post for supports
	'can_export' => true, // Allows export in Tools > Export
	'taxonomies' => array(
	'post_tag',
	'category'
	) // Add Category and Post Tags support
	));
	}

	/------------------------------------\
	ShortCode Functions
	\------------------------------------/

	// Shortcode Demo with Nested Capability
	function html5_shortcode_demo($atts, $content = null)
	{
	return '<div class="shortcode-demo">' . do_shortcode($content) . '</div>'; // do_shortcode allows for nested Shortcodes
	}

	// Shortcode Demo with simple <h2> tag
	function html5_shortcode_demo_2($atts, $content = null) // Demo Heading H2 shortcode, allows for nesting within above element. Fully expandable.
	{
	return '<h2>' . $content . '</h2>';
	}

	/------------------------------------\
	ACF Google Maps
	\------------------------------------/
	function my_acf_init() {
	acf_update_setting('google_api_key', 'AIzaSyAmIPycZ1BiG_w_8TvnTx5AMlJyoowagfo');
	}

	add_action('acf/init', 'my_acf_init');

	/------------------------------------\
	ACF Custom field Search
	\------------------------------------/
	function cf_search_join( $join ) {
	global $wpdb;

	if ( is_search() ) {
	$join .=' LEFT JOIN '.$wpdb->postmeta. ' ON '. $wpdb->posts . '.ID = ' . $wpdb->postmeta . '.post_id ';
	}

	return $join;
	}
	add_filter('posts_join', 'cf_search_join' );

	function cf_search_where( $where ) {
	global $pagenow, $wpdb;

	if ( is_search() ) {
	$where = preg_replace(
	"/\(\s".$wpdb->posts.".post_title\s+LIKE\s(\'[^\']+\')\s*\)/",
	"(".$wpdb->posts.".post_title LIKE $1) OR (".$wpdb->postmeta.".meta_value LIKE $1)", $where );
	}

	return $where;
	}
	add_filter( 'posts_where', 'cf_search_where' );

	function cf_search_distinct( $where ) {
	global $wpdb;

	if ( is_search() ) {
	return "DISTINCT";
	}

	return $where;
	}
	add_filter( 'posts_distinct', 'cf_search_distinct' );

	/------------------------------------\
	ACF Custom field filter
	\------------------------------------/

	// array of filters (field key => field name)
	$GLOBALS['my_query_filters'] = array(
	'field_583503060dc55' => 'brand',
	);

	// action

	function my_pre_get_posts( $query ) {

	// bail early if is in admin
	if( is_admin() ) {
	return;
	}

	// get meta query
	$meta_query = $query->get('meta_query');

	// loop over filters
	foreach( $GLOBALS['my_query_filters'] as $key => $name ) {

	// continue if not found in url
	if( empty($_GET[ $name ]) ) {
	continue;
	}

	// get the value for this filter
	// eg: http://www.website.com/events?city=melbourne,sydney
	$value = explode(',', $_GET[ $name ]);


	// append meta query
	$meta_query[] = array(
	'key' => $name,
	'value' => $value,
	'compare' => 'IN',
	);

	}

	// update meta query
	$query->set('meta_query', $meta_query);
	}

	add_action('pre_get_posts', 'my_pre_get_posts', 10, 1);

	function filter_herenschoenen() {

	foreach( $GLOBALS['my_query_filters'] as $key => $name ):

	// get the field's settings without attempting to load a value
	$field = get_field_object($key, false, false);


	// set value if available
	if( isset($_GET[ $name ]) ) {

	$field['value'] = explode(',', $_GET[ $name ]);

	}


	// create filter
	?>
	<div class="filter" data-filter="<?php echo $name; ?>">
	<?php create_field( $field ); ?>
	</div>

	<?php endforeach;

	}

	?>
	$(document).ready(function() {
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