/** k_admin-v1.1.0 MIT License By http://k/zhengjinfan.cn e-mail:zheng_jinfan@126.com */
 ;layui.define(['jquery'], function(exports) {
    var jQuery = layui.jquery;

    /*!
     * Copyright 2012, Chris Wanstrath
     * Released under the MIT License
     * https://github.com/defunkt/jquery-pjax
     */

    (function($) {

        // When called on a container with a selector, fetches the href with
        // ajax into the container or with the data-pjax attribute on the link
        // itself.
        //
        // Tries to make sure the back button and ctrl+click work the way
        // you'd expect.
        //
        // Exported as $.fn.pjax
        //
        // Accepts a jQuery ajax options object that may include these
        // pjax specific options:
        //
        //
        // container - Where to stick the response body. Usually a String selector.
        //             $(container).html(xhr.responseBody)
        //             (default: current jquery context)
        //      push - Whether to pushState the URL. Defaults to true (of course).
        //   replace - Want to use replaceState instead? That's cool.
        //
        // For convenience the second parameter can be either the container or
        // the options object.
        //
        // Returns the jQuery object
        function fnPjax(selector, container, options) {
            var context = this
            return this.on('click.pjax', selector, function(event) {
                var opts = $.extend({}, optionsFor(container, options))
                if (!opts.container)
                    opts.container = $(this).attr('data-pjax') || context
                handleClick(event, opts)
            })
        }

        // Public: pjax on click handler
        //
        // Exported as $.pjax.click.
        //
        // event   - "click" jQuery.Event
        // options - pjax options
        //
        // Examples
        //
        //   $(document).on('click', 'a', $.pjax.click)
        //   // is the same as
        //   $(document).pjax('a')
        //
        //  $(document).on('click', 'a', function(event) {
        //    var container = $(this).closest('[data-pjax-container]')
        //    $.pjax.click(event, container)
        //  })
        //
        // Returns nothing.
        function handleClick(event, container, options) {
            options = optionsFor(container, options)

            var link = event.currentTarget

            if (link.tagName.toUpperCase() !== 'A')
                throw "$.fn.pjax or $.pjax.click requires an anchor element"

            // Middle click, cmd click, and ctrl click should open
            // links in a new tab as normal.
            if (event.which > 1 || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey)
                return

            // Ignore cross origin links
            if (location.protocol !== link.protocol || location.hostname !== link.hostname)
                return

            // Ignore case when a hash is being tacked on the current URL
            if (link.href.indexOf('#') > -1 && stripHash(link) == stripHash(location))
                return

            // Ignore event with default prevented
            if (event.isDefaultPrevented())
                return

            var defaults = {
                url: link.href,
                container: $(link).attr('data-pjax'),
                target: link
            }

            var opts = $.extend({}, defaults, options)
            var clickEvent = $.Event('pjax:click')
            $(link).trigger(clickEvent, [opts])

            if (!clickEvent.isDefaultPrevented()) {
                pjax(opts)
                event.preventDefault()
                $(link).trigger('pjax:clicked', [opts])
            }
        }

        // Public: pjax on form submit handler
        //
        // Exported as $.pjax.submit
        //
        // event   - "click" jQuery.Event
        // options - pjax options
        //
        // Examples
        //
        //  $(document).on('submit', 'form', function(event) {
        //    var container = $(this).closest('[data-pjax-container]')
        //    $.pjax.submit(event, container)
        //  })
        //
        // Returns nothing.
        function handleSubmit(event, container, options) {
            options = optionsFor(container, options)

            var form = event.currentTarget

            if (form.tagName.toUpperCase() !== 'FORM')
                throw "$.pjax.submit requires a form element"

            var defaults = {
                type: form.method.toUpperCase(),
                url: form.action,
                container: $(form).attr('data-pjax'),
                target: form
            }

            if (defaults.type !== 'GET' && window.FormData !== undefined) {
                defaults.data = new FormData(form);
                defaults.processData = false;
                defaults.contentType = false;
            } else {
                // Can't handle file uploads, exit
                if ($(form).find(':file').length) {
                    return;
                }

                // Fallback to manually serializing the fields
                defaults.data = $(form).serializeArray();
            }

            pjax($.extend({}, defaults, options))

            event.preventDefault()
        }

        // Loads a URL with ajax, puts the response body inside a container,
        // then pushState()'s the loaded URL.
        //
        // Works just like $.ajax in that it accepts a jQuery ajax
        // settings object (with keys like url, type, data, etc).
        //
        // Accepts these extra keys:
        //
        // container - Where to stick the response body.
        //             $(container).html(xhr.responseBody)
        //      push - Whether to pushState the URL. Defaults to true (of course).
        //   replace - Want to use replaceState instead? That's cool.
        //
        // Use it just like $.ajax:
        //
        //   var xhr = $.pjax({ url: this.href, container: '#main' })
        //   console.log( xhr.readyState )
        //
        // Returns whatever $.ajax returns.
        function pjax(options) {
            options = $.extend(true, {}, $.ajaxSettings, pjax.defaults, options)

            if ($.isFunction(options.url)) {
                options.url = options.url()
            }

            var target = options.target

            var hash = parseURL(options.url).hash

            var context = options.context = findContainerFor(options.container)

            // We want the browser to maintain two separate internal caches: one
            // for pjax'd partial page loads and one for normal page loads.
            // Without adding this secret parameter, some browsers will often
            // confuse the two.
            if (!options.data) options.data = {}
            if ($.isArray(options.data)) {
                options.data.push({
                    name: '_pjax',
                    value: context.selector
                })
            } else {
                options.data._pjax = context.selector
            }

            function fire(type, args, props) {
                if (!props) props = {}
                props.relatedTarget = target
                var event = $.Event(type, props)
                context.trigger(event, args)
                return !event.isDefaultPrevented()
            }

            var timeoutTimer

            options.beforeSend = function(xhr, settings) {
                // No timeout for non-GET requests
                // Its not safe to request the resource again with a fallback method.
                if (settings.type !== 'GET') {
                    settings.timeout = 0
                }

                xhr.setRequestHeader('X-PJAX', 'true')
                xhr.setRequestHeader('X-PJAX-Container', context.selector)

                if (!fire('pjax:beforeSend', [xhr, settings]))
                    return false

                if (settings.timeout > 0) {
                    timeoutTimer = setTimeout(function() {
                        if (fire('pjax:timeout', [xhr, options]))
                            xhr.abort('timeout')
                    }, settings.timeout)

                    // Clear timeout setting so jquerys internal timeout isn't invoked
                    settings.timeout = 0
                }

                var url = parseURL(settings.url)
                if (hash) url.hash = hash
                options.requestUrl = stripInternalParams(url)
            }

            options.complete = function(xhr, textStatus) {
                if (timeoutTimer)
                    clearTimeout(timeoutTimer)

                fire('pjax:complete', [xhr, textStatus, options])

                fire('pjax:end', [xhr, options])
            }

            options.error = function(xhr, textStatus, errorThrown) {
                var container = extractContainer("", xhr, options)

                var allowed = fire('pjax:error', [xhr, textStatus, errorThrown, options])
                if (options.type == 'GET' && textStatus !== 'abort' && allowed) {
                    locationReplace(container.url)
                }
            }

            options.success = function(data, status, xhr) {
                var previousState = pjax.state;

                // If $.pjax.defaults.version is a function, invoke it first.
                // Otherwise it can be a static string.
                var currentVersion = (typeof $.pjax.defaults.version === 'function') ?
                    $.pjax.defaults.version() :
                    $.pjax.defaults.version

                var latestVersion = xhr.getResponseHeader('X-PJAX-Version')

                var container = extractContainer(data, xhr, options)

                var url = parseURL(container.url)
                if (hash) {
                    url.hash = hash
                    container.url = url.href
                }

                // If there is a layout version mismatch, hard load the new url
                if (currentVersion && latestVersion && currentVersion !== latestVersion) {
                    locationReplace(container.url)
                    return
                }

                // If the new response is missing a body, hard load the page
                if (!container.contents) {
                    locationReplace(container.url)
                    return
                }

                pjax.state = {
                    id: options.id || uniqueId(),
                    url: container.url,
                    title: container.title,
                    container: context.selector,
                    fragment: options.fragment,
                    timeout: options.timeout
                }

                if (options.push || options.replace) {
                    window.history.replaceState(pjax.state, container.title, container.url)
                }

                // Clear out any focused controls before inserting new page contents.
                try {
                    document.activeElement.blur()
                } catch (e) {}

                if (container.title) document.title = container.title

                fire('pjax:beforeReplace', [container.contents, options], {
                    state: pjax.state,
                    previousState: previousState
                })
                context.html(container.contents)

                // FF bug: Won't autofocus fields that are inserted via JS.
                // This behavior is incorrect. So if theres no current focus, autofocus
                // the last field.
                //
                // http://www.w3.org/html/wg/drafts/html/master/forms.html
                var autofocusEl = context.find('input[autofocus], textarea[autofocus]').last()[0]
                if (autofocusEl && document.activeElement !== autofocusEl) {
                    autofocusEl.focus();
                }

                executeScriptTags(container.scripts)

                var scrollTo = options.scrollTo

                // Ensure browser scrolls to the element referenced by the URL anchor
                if (hash) {
                    var name = decodeURIComponent(hash.slice(1))
                    var target = document.getElementById(name) || document.getElementsByName(name)[0]
                    if (target) scrollTo = $(target).offset().top
                }

                if (typeof scrollTo == 'number') $(window).scrollTop(scrollTo)

                fire('pjax:success', [data, status, xhr, options])
            }

            // Initialize pjax.state for the initial page load. Assume we're
            // using the container and options of the link we're loading for the
            // back button to the initial page. This ensures good back button
            // behavior.
            if (!pjax.state) {
                pjax.state = {
                    id: uniqueId(),
                    url: window.location.href,
                    title: document.title,
                    container: context.selector,
                    fragment: options.fragment,
                    timeout: options.timeout
                }
                window.history.replaceState(pjax.state, document.title)
            }

            // Cancel the current request if we're already pjaxing
            abortXHR(pjax.xhr)

            pjax.options = options
            var xhr = pjax.xhr = $.ajax(options)

            if (xhr.readyState > 0) {
                if (options.push && !options.replace) {
                    // Cache current container element before replacing it
                    cachePush(pjax.state.id, cloneContents(context))

                    window.history.pushState(null, "", options.requestUrl)
                }

                fire('pjax:start', [xhr, options])
                fire('pjax:send', [xhr, options])
            }

            return pjax.xhr
        }

        // Public: Reload current page with pjax.
        //
        // Returns whatever $.pjax returns.
        function pjaxReload(container, options) {
            var defaults = {
                url: window.location.href,
                push: false,
                replace: true,
                scrollTo: false
            }

            return pjax($.extend(defaults, optionsFor(container, options)))
        }

        // Internal: Hard replace current state with url.
        //
        // Work for around Webk
        //   https://bugs.webk.org/show_bug.cgi?id=93506
        //
        // Returns nothing.
        function locationReplace(url) {
            window.history.replaceState(null, "", pjax.state.url)
            window.location.replace(url)
        }

        var initialPop = true
        var initialURL = window.location.href
        var initialState = window.history.state

        // Initialize $.pjax.state if possible
        // Happens when reloading a page and coming forward from a different
        // session history.
        if (initialState && initialState.container) {
            pjax.state = initialState
        }

        // Non-webk browsers don't fire an initial popstate event
        if ('state' in window.history) {
            initialPop = false
        }

        // popstate handler takes care of the back and forward buttons
        //
        // You probably shouldn't use pjax on pages with other pushState
        // stuff yet.
        function onPjaxPopstate(event) {

            // Hitting back or forward should override any pending PJAX request.
            if (!initialPop) {
                abortXHR(pjax.xhr)
            }

            var previousState = pjax.state
            var state = event.state
            var direction

            if (state && state.container) {
                // When coming forward from a separate history session, will get an
                // initial pop with a state we are already at. Skip reloading the current
                // page.
                if (initialPop && initialURL == state.url) return

                if (previousState) {
                    // If popping back to the same state, just skip.
                    // Could be clicking back from hashchange rather than a pushState.
                    if (previousState.id === state.id) return

                    // Since state IDs always increase, we can deduce the navigation direction
                    direction = previousState.id < state.id ? 'forward' : 'back'
                }

                var cache = cacheMapping[state.id] || []
                var container = $(cache[0] || state.container),
                    contents = cache[1]

                if (container.length) {
                    if (previousState) {
                        // Cache current container before replacement and inform the
                        // cache which direction the history shifted.
                        cachePop(direction, previousState.id, cloneContents(container))
                    }

                    var popstateEvent = $.Event('pjax:popstate', {
                        state: state,
                        direction: direction
                    })
                    container.trigger(popstateEvent)

                    var options = {
                        id: state.id,
                        url: state.url,
                        container: container,
                        push: false,
                        fragment: state.fragment,
                        timeout: state.timeout,
                        scrollTo: false
                    }

                    if (contents) {
                        container.trigger('pjax:start', [null, options])

                        pjax.state = state
                        if (state.title) document.title = state.title
                        var beforeReplaceEvent = $.Event('pjax:beforeReplace', {
                            state: state,
                            previousState: previousState
                        })
                        container.trigger(beforeReplaceEvent, [contents, options])
                        container.html(contents)

                        container.trigger('pjax:end', [null, options])
                    } else {
                        pjax(options)
                    }

                    // Force reflow/relayout before the browser tries to restore the
                    // scroll position.
                    container[0].offsetHeight
                } else {
                    locationReplace(location.href)
                }
            }
            initialPop = false
        }

        // Fallback version of main pjax function for browsers that don't
        // support pushState.
        //
        // Returns nothing since it retriggers a hard form submission.
        function fallbackPjax(options) {
            var url = $.isFunction(options.url) ? options.url() : options.url,
                method = options.type ? options.type.toUpperCase() : 'GET'

            var form = $('<form>', {
                method: method === 'GET' ? 'GET' : 'POST',
                action: url,
                style: 'display:none'
            })

            if (method !== 'GET' && method !== 'POST') {
                form.append($('<input>', {
                    type: 'hidden',
                    name: '_method',
                    value: method.toLowerCase()
                }))
            }

            var data = options.data
            if (typeof data === 'string') {
                $.each(data.split('&'), function(index, value) {
                    var pair = value.split('=')
                    form.append($('<input>', {
                        type: 'hidden',
                        name: pair[0],
                        value: pair[1]
                    }))
                })
            } else if ($.isArray(data)) {
                $.each(data, function(index, value) {
                    form.append($('<input>', {
                        type: 'hidden',
                        name: value.name,
                        value: value.value
                    }))
                })
            } else if (typeof data === 'object') {
                var key
                for (key in data)
                    form.append($('<input>', {
                        type: 'hidden',
                        name: key,
                        value: data[key]
                    }))
            }

            $(document.body).append(form)
            form.submit()
        }

        // Internal: Abort an XmlHttpRequest if it hasn't been completed,
        // also removing its event handlers.
        function abortXHR(xhr) {
            if (xhr && xhr.readyState < 4) {
                xhr.onreadystatechange = $.noop
                xhr.abort()
            }
        }

        // Internal: Generate unique id for state object.
        //
        // Use a timestamp instead of a counter since ids should still be
        // unique across page loads.
        //
        // Returns Number.
        function uniqueId() {
            return (new Date).getTime()
        }

        function cloneContents(container) {
            var cloned = container.clone()
                // Unmark script tags as already being eval'd so they can get executed again
                // when restored from cache. HAXX: Uses jQuery internal method.
            cloned.find('script').each(function() {
                if (!this.src) jQuery._data(this, 'globalEval', false)
            })
            return [container.selector, cloned.contents()]
        }

        // Internal: Strip internal query params from parsed URL.
        //
        // Returns sanitized url.href String.
        function stripInternalParams(url) {
            url.search = url.search.replace(/([?&])(_pjax|_)=[^&]*/g, '')
            return url.href.replace(/\?($|#)/, '$1')
        }

        // Internal: Parse URL components and returns a Locationish object.
        //
        // url - String URL
        //
        // Returns HTMLAnchorElement that acts like Location.
        function parseURL(url) {
            var a = document.createElement('a')
            a.href = url
            return a
        }

        // Internal: Return the `href` component of given URL object with the hash
        // portion removed.
        //
        // location - Location or HTMLAnchorElement
        //
        // Returns String
        function stripHash(location) {
            return location.href.replace(/#.*/, '')
        }

        // Internal: Build options Object for arguments.
        //
        // For convenience the first parameter can be either the container or
        // the options object.
        //
        // Examples
        //
        //   optionsFor('#container')
        //   // => {container: '#container'}
        //
        //   optionsFor('#container', {push: true})
        //   // => {container: '#container', push: true}
        //
        //   optionsFor({container: '#container', push: true})
        //   // => {container: '#container', push: true}
        //
        // Returns options Object.
        function optionsFor(container, options) {
            // Both container and options
            if (container && options)
                options.container = container

            // First argument is options Object
            else if ($.isPlainObject(container))
                options = container

            // Only container
            else
                options = {
                    container: container
                }

            // Find and validate container
            if (options.container)
                options.container = findContainerFor(options.container)

            return options
        }

        // Internal: Find container element for a variety of inputs.
        //
        // Because we can't persist elements using the history API, we must be
        // able to find a String selector that will consistently find the Element.
        //
        // container - A selector String, jQuery object, or DOM Element.
        //
        // Returns a jQuery object whose context is `document` and has a selector.
        function findContainerFor(container) {
            container = $(container)

            if (!container.length) {
                throw "no pjax container for " + container.selector
            } else if (container.selector !== '' && container.context === document) {
                return container
            } else if (container.attr('id')) {
                return $('#' + container.attr('id'))
            } else {
                throw "cant get selector for pjax container!"
            }
        }

        // Internal: Filter and find all elements matching the selector.
        //
        // Where $.fn.find only matches descendants, findAll will test all the
        // top level elements in the jQuery object as well.
        //
        // elems    - jQuery object of Elements
        // selector - String selector to match
        //
        // Returns a jQuery object.
        function findAll(elems, selector) {
            return elems.filter(selector).add(elems.find(selector));
        }

        function parseHTML(html) {
            return $.parseHTML(html, document, true)
        }

        // Internal: Extracts container and metadata from response.
        //
        // 1. Extracts X-PJAX-URL header if set
        // 2. Extracts inline <title> tags
        // 3. Builds response Element and extracts fragment if set
        //
        // data    - String response data
        // xhr     - XHR response
        // options - pjax options Object
        //
        // Returns an Object with url, title, and contents keys.
        function extractContainer(data, xhr, options) {
            var obj = {},
                fullDocument = /<html/i.test(data)

            // Prefer X-PJAX-URL header if it was set, otherwise fallback to
            // using the original requested url.
            var serverUrl = xhr.getResponseHeader('X-PJAX-URL')
            obj.url = serverUrl ? stripInternalParams(parseURL(serverUrl)) : options.requestUrl

            // Attempt to parse response html into elements
            if (fullDocument) {
                var $head = $(parseHTML(data.match(/<head[^>]*>([\s\S.]*)<\/head>/i)[0]))
                var $body = $(parseHTML(data.match(/<body[^>]*>([\s\S.]*)<\/body>/i)[0]))
            } else {
                var $head = $body = $(parseHTML(data))
            }

            // If response data is empty, return fast
            if ($body.length === 0)
                return obj

            // If there's a <title> tag in the header, use it as
            // the page's title.
            obj.title = findAll($head, 'title').last().text()

            if (options.fragment) {
                // If they specified a fragment, look for it in the response
                // and pull it out.
                if (options.fragment === 'body') {
                    var $fragment = $body
                } else {
                    var $fragment = findAll($body, options.fragment).first()
                }

                if ($fragment.length) {
                    obj.contents = options.fragment === 'body' ? $fragment : $fragment.contents()

                    // If there's no title, look for data-title and title attributes
                    // on the fragment
                    if (!obj.title)
                        obj.title = $fragment.attr('title') || $fragment.data('title')
                }

            } else if (!fullDocument) {
                obj.contents = $body
            }

            // Clean up any <title> tags
            if (obj.contents) {
                // Remove any parent title elements
                obj.contents = obj.contents.not(function() {
                    return $(this).is('title')
                })

                // Then scrub any titles from their descendants
                obj.contents.find('title').remove()

                // Gather all script[src] elements
                obj.scripts = findAll(obj.contents, 'script[src]').remove()
                obj.contents = obj.contents.not(obj.scripts)
            }

            // Trim any whitespace off the title
            if (obj.title) obj.title = $.trim(obj.title)

            return obj
        }

        // Load an execute scripts using standard script request.
        //
        // Avoids jQuery's traditional $.getScript which does a XHR request and
        // globalEval.
        //
        // scripts - jQuery object of script Elements
        //
        // Returns nothing.
        function executeScriptTags(scripts) {
            if (!scripts) return

            var existingScripts = $('script[src]')

            scripts.each(function() {
                var src = this.src
                var matchedScripts = existingScripts.filter(function() {
                    return this.src === src
                })
                if (matchedScripts.length) return

                var script = document.createElement('script')
                var type = $(this).attr('type')
                if (type) script.type = type
                script.src = $(this).attr('src')
                document.head.appendChild(script)
            })
        }

        // Internal: History DOM caching class.
        var cacheMapping = {}
        var cacheForwardStack = []
        var cacheBackStack = []

        // Push previous state id and container contents into the history
        // cache. Should be called in conjunction with `pushState` to save the
        // previous container contents.
        //
        // id    - State ID Number
        // value - DOM Element to cache
        //
        // Returns nothing.
        function cachePush(id, value) {
            cacheMapping[id] = value
            cacheBackStack.push(id)

            // Remove all entries in forward history stack after pushing a new page.
            trimCacheStack(cacheForwardStack, 0)

            // Trim back history stack to max cache length.
            trimCacheStack(cacheBackStack, pjax.defaults.maxCacheLength)
        }

        // Shifts cache from directional history cache. Should be
        // called on `popstate` with the previous state id and container
        // contents.
        //
        // direction - "forward" or "back" String
        // id        - State ID Number
        // value     - DOM Element to cache
        //
        // Returns nothing.
        function cachePop(direction, id, value) {
            var pushStack, popStack
            cacheMapping[id] = value

            if (direction === 'forward') {
                pushStack = cacheBackStack
                popStack = cacheForwardStack
            } else {
                pushStack = cacheForwardStack
                popStack = cacheBackStack
            }

            pushStack.push(id)
            if (id = popStack.pop())
                delete cacheMapping[id]

            // Trim whichever stack we just pushed to to max cache length.
            trimCacheStack(pushStack, pjax.defaults.maxCacheLength)
        }

        // Trim a cache stack (either cacheBackStack or cacheForwardStack) to be no
        // longer than the specified length, deleting cached DOM elements as necessary.
        //
        // stack  - Array of state IDs
        // length - Maximum length to trim to
        //
        // Returns nothing.
        function trimCacheStack(stack, length) {
            while (stack.length > length)
                delete cacheMapping[stack.shift()]
        }

        // Public: Find version identifier for the initial page load.
        //
        // Returns String version or undefined.
        function findVersion() {
            return $('meta').filter(function() {
                var name = $(this).attr('http-equiv')
                return name && name.toUpperCase() === 'X-PJAX-VERSION'
            }).attr('content')
        }

        // Install pjax functions on $.pjax to enable pushState behavior.
        //
        // Does nothing if already enabled.
        //
        // Examples
        //
        //     $.pjax.enable()
        //
        // Returns nothing.
        function enable() {
            $.fn.pjax = fnPjax
            $.pjax = pjax
            $.pjax.enable = $.noop
            $.pjax.disable = disable
            $.pjax.click = handleClick
            $.pjax.submit = handleSubmit
            $.pjax.reload = pjaxReload
            $.pjax.defaults = {
                timeout: 650,
                push: true,
                replace: false,
                type: 'GET',
                dataType: 'html',
                scrollTo: 0,
                maxCacheLength: 20,
                version: findVersion
            }
            $(window).on('popstate.pjax', onPjaxPopstate)
        }

        // Disable pushState behavior.
        //
        // This is the case when a browser doesn't support pushState. It is
        // sometimes useful to disable pushState for debugging on a modern
        // browser.
        //
        // Examples
        //
        //     $.pjax.disable()
        //
        // Returns nothing.
        function disable() {
            $.fn.pjax = function() {
                return this
            }
            $.pjax = fallbackPjax
            $.pjax.enable = enable
            $.pjax.disable = $.noop
            $.pjax.click = $.noop
            $.pjax.submit = $.noop
            $.pjax.reload = function() {
                window.location.reload()
            }

            $(window).off('popstate.pjax', onPjaxPopstate)
        }

        // Add the state property to jQuery's event object so we can use it in
        // $(window).bind('popstate')
        if ($.inArray('state', $.event.props) < 0)
            $.event.props.push('state')

        // Is pjax supported by this browser?
        $.support.pjax =
            window.history && window.history.pushState && window.history.replaceState &&
            // pushState isn't reliable on iOS until 5.
            !navigator.userAgent.match(/((iPod|iPhone|iPad).+\bOS\s+[1-4]\D|WebApps\/.+CFNetwork)/)

        $.support.pjax ? enable() : disable()

    })(jQuery);
    //输出接口
    exports('pjax');
});