$(document).ready(function() { $(".toggle-accordion").on("click", function() { var accordionId = $(this).attr("accordion-id"), numPanelOpen = $(accordionId + ' .collapse.in').length; $(this).toggleClass("active"); if (numPanelOpen == 0) { openAllPanels(accordionId); } else { closeAllPanels(accordionId); } }) openAllPanels = function(aId) { console.log("setAllPanelOpen"); $(aId + ' .panel-collapse:not(".in")').collapse('show'); } closeAllPanels = function(aId) { console.log("setAllPanelclose"); $(aId + ' .panel-collapse.in').collapse('hide'); } });