jQuery(document).ready(function(){ var accordionsMenu = $('.cd-accordion-menu'); if( accordionsMenu.length > 0 ) { accordionsMenu.each(function(){ var accordion = $(this); //detect change in the input[type="checkbox"] value accordion.on('change', 'input[type="checkbox"]', function(){ var checkbox = $(this); console.log(checkbox.prop('checked')); ( checkbox.prop('checked') ) ? checkbox.siblings('ul').attr('style', 'display:none;').slideDown(300) : checkbox.siblings('ul').attr('style', 'display:block;').slideUp(300); }); }); } });