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Editing: tab.js

/* ========================================================================
 * Bootstrap: tab.js v3.3.1
 * http://getbootstrap.com/javascript/#tabs
 * ========================================================================
 * Copyright 2011-2014 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * ======================================================================== */

+function ($) {
    'use strict';

// TAB CLASS DEFINITION
    // ====================

var Tab = function (element) {
        this.element = $(element)
    }

Tab.VERSION = '3.3.1'

Tab.TRANSITION_DURATION = 150

Tab.prototype.show = function () {
        var $this    = this.element
        var $ul      = $this.closest('ul:not(.dropdown-menu)')
        var selector = $this.data('target')

if (!selector) {
            selector = $this.attr('href')
            selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
        }

if ($this.parent('li').hasClass('active')) return

var $previous = $ul.find('.active:last a')
        var hideEvent = $.Event('hide.bs.tab', {
            relatedTarget: $this[0]
        })
        var showEvent = $.Event('show.bs.tab', {
            relatedTarget: $previous[0]
        })

$previous.trigger(hideEvent)
        $this.trigger(showEvent)

if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) return

var $target = $(selector)

this.activate($this.closest('li'), $ul)
        this.activate($target, $target.parent(), function () {
            $previous.trigger({
                type: 'hidden.bs.tab',
                relatedTarget: $this[0]
            })
            $this.trigger({
                type: 'shown.bs.tab',
                relatedTarget: $previous[0]
            })
        })
    }

Tab.prototype.activate = function (element, container, callback) {
        var $active    = container.find('> .active')
        var transition = callback
            && $.support.transition
            && (($active.length && $active.hasClass('fade')) || !!container.find('> .fade').length)

function next() {
            $active
                .removeClass('active')
                .find('> .dropdown-menu > .active')
                .removeClass('active')
                .end()
                .find('[data-toggle="tab"]')
                .attr('aria-expanded', false)

element
                .addClass('active')
                .find('[data-toggle="tab"]')
                .attr('aria-expanded', true)

if (transition) {
                element[0].offsetWidth // reflow for transition
                element.addClass('in')
            } else {
                element.removeClass('fade')
            }

if (element.parent('.dropdown-menu')) {
                element
                    .closest('li.dropdown')
                    .addClass('active')
                    .end()
                    .find('[data-toggle="tab"]')
                    .attr('aria-expanded', true)
            }

callback && callback()
        }

$active.length && transition ?
            $active
                .one('bsTransitionEnd', next)
                .emulateTransitionEnd(Tab.TRANSITION_DURATION) :
            next()

$active.removeClass('in')
    }

// TAB PLUGIN DEFINITION
    // =====================

function Plugin(option) {
        return this.each(function () {
            var $this = $(this)
            var data  = $this.data('bs.tab')

if (!data) $this.data('bs.tab', (data = new Tab(this)))
            if (typeof option == 'string') data[option]()
        })
    }

var old = $.fn.tab

$.fn.tab             = Plugin
    $.fn.tab.Constructor = Tab

// TAB NO CONFLICT
    // ===============

$.fn.tab.noConflict = function () {
        $.fn.tab = old
        return this
    }

// TAB DATA-API
    // ============

var clickHandler = function (e) {
        e.preventDefault()
        Plugin.call($(this), 'show')
    }

$(document)
        .on('click.bs.tab.data-api', '[data-toggle="tab"]', clickHandler)
        .on('click.bs.tab.data-api', '[data-toggle="pill"]', clickHandler)

}(jQuery);

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