Accordion / Collapser Javascript

collapser.js

var $collapseToggle = $('.js_collapse_toggle'),
    $collapseContent = $('.js_collapse_content');
$collapseContent.hide();
$collapseToggle.on('click', function(event) {
    event.preventDefault();
    $(this).toggleClass('collapse_active');
    $($(this).attr('href')+'.js_collapse_content').stop(true, false).slideToggle();
});