/*

 * jQuery UI Accordion 1.6

 * 

 * Copyright (c) 2007 Jörn Zaefferer

 *

 * http://docs.jquery.com/UI/Accordion

 *

 * Dual licensed under the MIT and GPL licenses:

 *   http://www.opensource.org/licenses/mit-license.php

 *   http://www.gnu.org/licenses/gpl.html

 *

 * Revision: $Id: jquery.accordion.js 4876 2008-03-08 11:49:04Z joern.zaefferer $

 *

 */



;(function($) {

	

// If the UI scope is not available, add it

$.ui = $.ui || {};



$.fn.extend({

	accordion: function(options, data) {

		var args = Array.prototype.slice.call(arguments, 1);



		return this.each(function() {

			if (typeof options == "string") {

				var accordion = $.data(this, "ui-accordion");

				accordion[options].apply(accordion, args);

			// INIT with optional options

			} else if (!$(this).is(".ui-accordion"))

				$.data(this, "ui-accordion", new $.ui.accordion(this, options));

		});

	},

	// deprecated, use accordion("activate", index) instead

	activate: function(index) {

		return this.accordion("activate", index);

	}

});



$.ui.accordion = function(container, options) {

	

	// setup configuration

	this.options = options = $.extend({}, $.ui.accordion.defaults, options);

	this.element = container;

	

	$(container).addClass("ui-accordion");

	

	if ( options.navigation ) {

		var current = $(container).find("a").filter(options.navigationFilter);

		if ( current.length ) {

			if ( current.filter(options.header).length ) {

				options.active = current;

			} else {

				options.active = current.parent().parent().prev();

				current.addClass("current");

			}

		}

	}

	

	// calculate active if not specified, using the first header

	options.headers = $(container).find(options.header);

	options.active = findActive(options.headers, options.active);



	if ( options.fillSpace ) {

		var maxHeight = $(container).parent().height();

		options.headers.each(function() {

			maxHeight -= $(this).outerHeight();

		});

		var maxPadding = 0;

		options.headers.next().each(function() {

			maxPadding = Math.max(maxPadding, $(this).innerHeight() - $(this).height());

		}).height(maxHeight - maxPadding);

	} else if ( options.autoheight ) {

		var maxHeight = 0;

		options.headers.next().each(function() {

			maxHeight = Math.max(maxHeight, $(this).outerHeight());

		}).height(maxHeight);

	}



	options.headers

		.not(options.active || "")

		.next()

		.hide();

	options.active.parent().andSelf().addClass(options.selectedClass);

	

	if (options.event)

		$(container).bind((options.event) + ".ui-accordion", clickHandler);

};



$.ui.accordion.prototype = {

	activate: function(index) {

		// call clickHandler with custom event

		clickHandler.call(this.element, {

			target: findActive( this.options.headers, index )[0]

		});

	},

	

	enable: function() {

		this.options.disabled = false;

	},

	disable: function() {

		this.options.disabled = true;

	},

	destroy: function() {

		this.options.headers.next().css("display", "");

		if ( this.options.fillSpace || this.options.autoheight ) {

			this.options.headers.next().css("height", "");

		}

		$.removeData(this.element, "ui-accordion");

		$(this.element).removeClass("ui-accordion").unbind(".ui-accordion");

	}

}



function scopeCallback(callback, scope) {

	return function() {

		return callback.apply(scope, arguments);

	};

}



function completed(cancel) {

	// if removed while animated data can be empty

	if (!$.data(this, "ui-accordion"))

		return;

	var instance = $.data(this, "ui-accordion");

	var options = instance.options;

	options.running = cancel ? 0 : --options.running;

	if ( options.running )

		return;

	if ( options.clearStyle ) {

		options.toShow.add(options.toHide).css({

			height: "",

			overflow: ""

		});

	}

	$(this).triggerHandler("change.ui-accordion", [options.data], options.change);

}



function toggle(toShow, toHide, data, clickedActive, down) {

	var options = $.data(this, "ui-accordion").options;

	options.toShow = toShow;

	options.toHide = toHide;

	options.data = data;

	var complete = scopeCallback(completed, this);

	

	// count elements to animate

	options.running = toHide.size() == 0 ? toShow.size() : toHide.size();

	

	if ( options.animated ) {

		if ( !options.alwaysOpen && clickedActive ) {

			$.ui.accordion.animations[options.animated]({

				toShow: jQuery([]),

				toHide: toHide,

				complete: complete,

				down: down,

				autoheight: options.autoheight

			});

		} else {

			$.ui.accordion.animations[options.animated]({

				toShow: toShow,

				toHide: toHide,

				complete: complete,

				down: down,

				autoheight: options.autoheight

			});

		}

	} else {

		if ( !options.alwaysOpen && clickedActive ) {

			toShow.toggle();

		} else {

			toHide.hide();

			toShow.show();

		}

		complete(true);

	}

}



function clickHandler(event) {

	var options = $.data(this, "ui-accordion").options;

	if (options.disabled)

		return false;

	

	// called only when using activate(false) to close all parts programmatically

	if ( !event.target && !options.alwaysOpen ) {

		options.active.parent().andSelf().toggleClass(options.selectedClass);

		var toHide = options.active.next(),

			data = {

				instance: this,

				options: options,

				newHeader: jQuery([]),

				oldHeader: options.active,

				newContent: jQuery([]),

				oldContent: toHide

			},

			toShow = options.active = $([]);

		toggle.call(this, toShow, toHide, data );

		return false;

	}

	// get the click target

	var clicked = $(event.target);

	

	// due to the event delegation model, we have to check if one

	// of the parent elements is our actual header, and find that

	if ( clicked.parents(options.header).length )

		while ( !clicked.is(options.header) )

			clicked = clicked.parent();

	

	var clickedActive = clicked[0] == options.active[0];

	

	// if animations are still active, or the active header is the target, ignore click

	if (options.running || (options.alwaysOpen && clickedActive))

		return false;

	if (!clicked.is(options.header))

		return;



	// switch classes

	options.active.parent().andSelf().toggleClass(options.selectedClass);

	if ( !clickedActive ) {

		clicked.parent().andSelf().addClass(options.selectedClass);

	}



	// find elements to show and hide

	var toShow = clicked.next(),

		toHide = options.active.next(),

		//data = [clicked, options.active, toShow, toHide],

		data = {

			instance: this,

			options: options,

			newHeader: clicked,

			oldHeader: options.active,

			newContent: toShow,

			oldContent: toHide

		},

		down = options.headers.index( options.active[0] ) > options.headers.index( clicked[0] );

	

	options.active = clickedActive ? $([]) : clicked;

	toggle.call(this, toShow, toHide, data, clickedActive, down );



	return false;

};



function findActive(headers, selector) {

	return selector != undefined

		? typeof selector == "number"

			? headers.filter(":eq(" + selector + ")")

			: headers.not(headers.not(selector))

		: selector === false

			? $([])

			: headers.filter(":eq(0)");

}



$.extend($.ui.accordion, {

	defaults: {

		selectedClass: "selected",

		alwaysOpen: true,

		animated: 'slide',

		event: "click",

		header: "a",

		autoheight: true,

		running: 0,

		navigationFilter: function() {

			return this.href.toLowerCase() == location.href.toLowerCase();

		}

	},

	animations: {

		slide: function(options, additions) {

			options = $.extend({

				easing: "swing",

				duration: 300

			}, options, additions);

			if ( !options.toHide.size() ) {

				options.toShow.animate({height: "show"}, options);

				return;

			}

			var hideHeight = options.toHide.height(),

				showHeight = options.toShow.height(),

				difference = showHeight / hideHeight;

			options.toShow.css({ height: 0, overflow: 'hidden' }).show();

			options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate({height:"hide"},{

				step: function(now) {

					var current = (hideHeight - now) * difference;

					if ($.browser.msie || $.browser.opera) {

						current = Math.ceil(current);

					}

					options.toShow.height( current );

				},

				duration: options.duration,

				easing: options.easing,

				complete: function() {

					if ( !options.autoheight ) {

						options.toShow.css("height", "auto");

					}

					options.complete();

				}

			});

		},

		bounceslide: function(options) {

			this.slide(options, {

				easing: options.down ? "bounceout" : "swing",

				duration: options.down ? 1000 : 200

			});

		},

		easeslide: function(options) {

			this.slide(options, {

				easing: "easeinout",

				duration: 700

			})

		}

	}

});

})(jQuery);

$(document).ready(function(){

	$('#filtros').accordion({header: '.headerfiltro',autoheight: false });

})


