Расул Гитинов

$(function() {
	$('.interests__item').click(function(){
		if ( $('.interests__item_active').length < 5 )
			$(this).toggleClass('interests__item_active');
		else if ($(this).hasClass('interests__item_active'))
			$(this).toggleClass('interests__item_active');
	});

	$('.interests__item').click(function(){
		if ( $('.interests__item_active').length >= 5 )
			$('.interests__item').addClass('interests__item_confirmed');
		else {
			$('.interests__item').removeClass('interests__item_confirmed');
		}
	});
});

<?php   
    if ( have_posts() ) :
    while ( have_posts() ) : the_post();
        if ( $wp_query->current_post == 0 ) :
            get_template_part( 'hero' );
        endif;
    endwhile;
    endif;
?>

<?php   
    if ( have_posts() ) :
    while ( have_posts() ) : the_post();
        if ( $wp_query->current_post > 0 ) :
            get_template_part( 'article' );
        endif;
    endwhile;
    endif;
?>