jquery.collapsible.js

/*!
* Collapsible.js 1.0.0
* https://github.com/jordnkr/collapsible
*
* Copyright 2013, Jordan Ruedy
* This content is released under the MIT license
* http://opensource.org/licenses/MIT
*/

(function($, undefined) {
    $.fn.collapsible = function(effect, options) {

        var defaults = {
            accordionUpSpeed: 400,
            accordionDownSpeed: 400,
            collapseSpeed: 400,
			contentOpen: 0,
            arrowRclass: 'arrow-r',
            arrowDclass: 'arrow-d',
            animate: true
        };

        if (typeof effect === "object") {
            var settings = $.extend(defaults, effect);
        } else {
            var settings = $.extend(defaults, options);
        }

        return this.each(function() {
            if (settings.animate === false) {
                settings.accordionUpSpeed = 0;
                settings.accordionDownSpeed = 0;
                settings.collapseSpeed = 0;
            }

            var $thisEven = $(this).children(':even');
            var $thisOdd = $(this).children(':odd');
			var accord = 'accordion-active';

            switch (effect) {
				case 'accordion-open':
					/* FALLTHROUGH */
                case 'accordion':
					if (effect === 'accordion-open') {
						$($thisEven[settings.contentOpen]).children(':first-child').toggleClass(settings.arrowRclass + ' ' + settings.arrowDclass);
						$($thisOdd[settings.contentOpen]).show().addClass(accord);
					}
                    $($thisEven).click(function() {
                        if ($(this).next().attr('class') === accord) {
                            $(this).next().slideUp(settings.accordionUpSpeed).removeClass(accord);
                            $(this).children(':first-child').toggleClass(settings.arrowRclass + ' ' + settings.arrowDclass);
                        } else {
                            $($thisEven).children().removeClass(settings.arrowDclass).addClass(settings.arrowRclass); 
                            $($thisOdd).slideUp(settings.accordionUpSpeed).removeClass(accord);
                            $(this).next().slideDown(settings.accordionDownSpeed).addClass(accord); 
                            $(this).children(':first-child').toggleClass(settings.arrowRclass + ' ' + settings.arrowDclass);              
                        }
                    });
                    break;
				case 'default-open':
					/* FALLTHROUGH */
                default:
					if (effect === 'default-open') {
						$($thisEven[settings.contentOpen]).children(':first-child').toggleClass(settings.arrowRclass + ' ' + settings.arrowDclass);
						$($thisOdd[settings.contentOpen]).show();
					}
                    $($thisEven).click(function() {
                        $(this).children(':first-child').toggleClass(settings.arrowRclass + ' ' + settings.arrowDclass);
                        $(this).next().slideToggle(settings.collapseSpeed);
                    });  
					break;
            }      
        });
    };
})(jQuery);