window.addEvent('domready', function() {
    var stretchers = $$('div.atStart');
    var togglers = $$('h2.atStart');
    var accordion = new Accordion(togglers, stretchers, {
        display: 0,
        opacity: false,
        onActive: function(togglers, stretchers) {
            togglers.setStyle('background', '#D1E5D9'),
            togglers.setStyle('color', '#036940');
        },
        onBackground: function(togglers, stretchers) {
            togglers.setStyle('background-color', '#036940');
            togglers.setStyle('color', '#FFFFFF');
        }
    }, $('sidebar'));
});