AJAX无刷新上传

    添加时间:2013-6-11 点击量:

        目次布局如下:



        此中files文件夹中存放上传来的。


        index.html代码如下:



    <!DOCTYPE HTML>
    
    <html>
    <head>
    <meta charset=utf-8>
    <style type=text/css>
    .demo
    {width:620px; margin:30px auto}
    .demo p
    {line-height:32px}
    .btn
    {position: relative;overflow: hidden;margin-right: 4px;display:inline-block;display:inline;padding:4px 10px 4px;font-size:14px;line-height:18px;line-height:20px;color:#fff;text-align:center;vertical-align:middle;cursor:pointer;background-color:#5bb75b;border:1px solid #cccccc;border-color:#e6e6e6 #e6e6e6 #bfbfbf;border-bottom-color:#b3b3b3;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;}
    .btn input
    {position: absolute;top: 0; right: 0;margin: 0;border: solid transparent;opacity: 0;filter:alpha(opacity=0); cursor: pointer;}
    .progress
    { position:relative; margin-left:100px; margin-top:-24px; width:200px;padding: 1px; border-radius:3px; display:none}
    .bar
    {background-color: green; display:block; width:0%; height:20px; border-radius: 3px; }
    .percent
    { position:absolute; height:20px; display:inline-block; top:3px; left:2%; color:#fff }
    .files
    {height:22px; line-height:22px; margin:10px 0}
    .delimg
    {margin-left:20px; color:#090; cursor:pointer}
    </style>
    <script type=text/javascript src=http://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js></script>
    <script type=text/javascript src=jquery.form.js></script>
    </head>

    <body>
    <div id=main>
    <span class=demo>
    <span class=btn>
    <span>添加附件</span>
    <input id=fileupload type=file name=mypic>
    </span>
    </span>
    </div>

    <script type=text/javascript>
    ¥(
    function () {
    var bar = ¥(.bar);
    var percent = ¥(.percent);
    var showimg = ¥(#showimg);
    var progress = ¥(.progress);
    var files = ¥(.files);
    var btn = ¥(.btn span);
    ¥(
    #fileupload).wrap(<form id=myupload action=action.php method=post enctype=multipart/form-data></form>);
    ¥(
    #fileupload).change(function(){
    ¥(
    #myupload).ajaxSubmit({
    dataType:
    json
    beforeSend:
    function() {
    showimg.empty();
    progress.show();
    var percentVal = 0%;
    bar.width(percentVal);
    percent.html(percentVal);
    btn.html(
    上传中...);
    },
    uploadProgress:
    function(event, position, total, percentComplete) {
    var percentVal = percentComplete + ;
    bar.width(percentVal);
    percent.html(percentVal);
    },
    success:
    function(data) {
    files.html(
    <b>+data.name++data.size+k)</b> <span class=delimg rel=+data.pic+>删除</span>);
    var img = http://demo.helloweba.com/upload/files/+data.pic;
    showimg.html(
    <img src=+img+>);
    btn.html(
    添加附件);
    },
    error:
    function(xhr){
    btn.html(
    上传失败);
    bar.width(
    0
    files.html(xhr.responseText);
    }
    });
    });

    ¥(
    .delimg).live(clickfunction(){
    var pic = ¥(this).attr(rel);
    ¥.post(
    action.php?act=delimg,{imagename:pic},function(msg){
    if(msg==1){
    files.html(
    删除成功.);
    showimg.empty();
    progress.hide();
    }
    else{
    alert(msg);
    }
    });
    });
    });
    </script>
    </body>
    </html>


        action.php代码如下:



    <?php
    
    ¥picname = ¥_FILES[mypic][name];
    ¥picsize = ¥_FILES[mypic][size];
    if¥picname != ) {
    if¥picsize > 1024000) {
    echo 大小不克不及跨越1M;
    exit;
    }
    ¥type = strstr¥picname, .);
    if¥type != .gif && ¥type != .jpg&& ¥type != .png) {
    echo 格局不合错误!;
    exit;
    }
    ¥rand = rand(100, 999);
    ¥pics = date(YmdHis) . ¥rand . ¥type;
    //上传路径
    ¥pic_path = files/. ¥pics;
    move_uploaded_file¥_FILES[mypic][tmp_name], ¥pic_path);
    }
    ¥size = round¥picsize/1024,2);
    ¥arr = array
    name=>¥picname
    pic=>¥pics
    size=>¥size
    );
    echo json_encode(¥arr);

    ?>


         jquery.form.js代码如下:



    /!
    
    jQuery Form Plugin
    version: 3.15 (09-SEP-2012)
    @requires jQuery v1.3.2 or later

    Examples and documentation at: http://malsup.com/jquery/form/
    Project repository: https://github.com/malsup/form
    Dual licensed under the MIT and GPL licenses:
    http://malsup.github.com/mit-license.txt
    http://malsup.github.com/gpl-license-v2.txt
    /
    /global ActiveXObject alert /
    ;(
    function(¥) {
    use strict;

    /
    Usage Note:
    -----------
    Do not use both ajaxSubmit and ajaxForm on the same form. These
    functions are mutually exclusive. Use ajaxSubmit if you want
    to bind your own submit handler to the form. For example,

    ¥(document).ready(function() {
    ¥(#myForm).on(submit, function(e) {
    e.preventDefault(); // <-- important
    ¥(this).ajaxSubmit({
    target: #output
    });
    });
    });

    Use ajaxForm when you want the plugin to manage all the event binding
    for you. For example,

    ¥(document).ready(function() {
    ¥(#myForm).ajaxForm({
    target: #output
    });
    });

    You can also use ajaxForm with delegation (requires jQuery v1.7+), so the
    form does not have to exist when you invoke ajaxForm:

    ¥(#myForm).ajaxForm({
    delegation: true,
    target: #output
    });

    When using ajaxForm, the ajaxSubmit function will be invoked for you
    at the appropriate time.
    /

    /
    Feature detection
    /
    var feature = {};
    feature.fileapi
    = ¥(<input type=file/>).get(0).files !== undefined;
    feature.formdata
    = window.FormData !== undefined;

    /
    ajaxSubmit() provides a mechanism for immediately submitting
    an HTML form using AJAX.
    /
    ¥.fn.ajaxSubmit
    = function(options) {
    /jshint scripturl:true /

    // fast fail if nothing ed (http://dev.jquery.com/ticket/2752)
    if (!this.length) {
    log(
    ajaxSubmit: skipping submit process - no element ed);
    return this;
    }

    var method, action, url, ¥form = this;

    iftypeof options == function) {
    options
    = { success: options };
    }

    method
    = this.attr(method);
    action
    = this.attr(action);
    url
    = (typeof action === string) ? ¥.trim(action) : ;
    url
    = url || window.location.href || ;
    if (url) {
    // clean url (dont include hash vaue)
    url = (url.match(/^([^#]+)/)||[])[1];
    }

    options
    = ¥.extend(true, {
    url: url,
    success: ¥.ajaxSettings.success,
    type: method
    || GET
    iframeSrc:
    /^https/i.test(window.location.href || ) ? javascript:false : about:blank
    }, options);

    // hook for manipulating the form data before it is extracted;
    // convenient for use with rich editors like tinyMCE or FCKEditor
    var veto = {};
    this.trigger(form-pre-serialize, [this, options, veto]);
    if (veto.veto) {
    log(
    ajaxSubmit: submit vetoed via form-pre-serialize trigger);
    return this;
    }

    // provide opportunity to alter form data before it is serialized
    if (options.beforeSerialize && options.beforeSerialize(this, options) === false) {
    log(
    ajaxSubmit: submit aborted via beforeSerialize callback);
    return this;
    }

    var traditional = options.traditional;
    if ( traditional === undefined ) {
    traditional
    = ¥.ajaxSettings.traditional;
    }

    var elements = [];
    var qx, a = this.formToArray(options.semantic, elements);
    if (options.data) {
    options.extraData
    = options.data;
    qx
    = ¥.param(options.data, traditional);
    }

    // give pre-submit callback an opportunity to abort the submit
    if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
    log(
    ajaxSubmit: submit aborted via beforeSubmit callback);
    return this;
    }

    // fire vetoable validate event
    this.trigger(form-submit-validate, [a, this, options, veto]);
    if (veto.veto) {
    log(
    ajaxSubmit: submit vetoed via form-submit-validate trigger);
    return this;
    }

    var q = ¥.param(a, traditional);
    if (qx) {
    q
    = ( q ? (q + & + qx) : qx );
    }
    if (options.type.toUpperCase() == GET) {
    options.url
    += (options.url.indexOf(?) >= 0 ? & : ?) + q;
    options.data
    = null; // data is null for get
    }
    else {
    options.data
    = q; // data is the query string for post
    }

    var callbacks = [];
    if (options.resetForm) {
    callbacks.push(
    function() { ¥form.resetForm(); });
    }
    if (options.clearForm) {
    callbacks.push(
    function() { ¥form.clearForm(options.includeHidden); });
    }

    // perform a load on the target only if dataType is not provided
    if (!options.dataType && options.target) {
    var oldSuccess = options.success || function(){};
    callbacks.push(
    function(data) {
    var fn = options.replaceTarget ? replaceWith : html;
    ¥(options.target)[fn](data).each(oldSuccess, arguments);
    });
    }
    else if (options.success) {
    callbacks.push(options.success);
    }

    options.success
    = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd arg
    var context = options.context || this ; // jQuery 1.4+ supports scope context
    forvar i=0, max=callbacks.length; i < max; i++) {
    callbacks[i].apply(context, [data, status, xhr
    || ¥form, ¥form]);
    }
    };

    // are there files to upload?
    var fileInputs = ¥(input:file:enabled[value], this); // [value] (issue #113)
    var hasFileInputs = fileInputs.length > 0;
    var mp = multipart/form-data;
    var multipart = (¥form.attr(enctype) == mp || ¥form.attr(encoding) == mp);

    var fileAPI = feature.fileapi && feature.formdata;
    log(
    fileAPI : + fileAPI);
    var shouldUseFrame = (hasFileInputs || multipart) && !fileAPI;

    // options.iframe allows user to force iframe mode
    // 06-NOV-09: now defaulting to iframe mode if file input is detected
    if (options.iframe !== false && (options.iframe || shouldUseFrame)) {
    // hack to fix Safari hang (thanks to Tim Molendijk for this)
    // see: http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
    if (options.closeKeepAlive) {
    ¥.get(options.closeKeepAlive,
    function() {
    fileUploadIframe(a);
    });
    }
    else {
    fileUploadIframe(a);
    }
    }
    else if ((hasFileInputs || multipart) && fileAPI) {
    fileUploadXhr(a);
    }
    else {
    ¥.ajax(options);
    }

    // clear element array
    forvar k=0; k < elements.length; k++
    elements[k]
    = null;

    // fire notify event
    this.trigger(form-submit-notify, [this, options]);
    return this;

    // utility fn for deep serialization
    function deepSerialize(extraData){
    var serialized = ¥.param(extraData).split(&);
    var len = serialized.length;
    var result = {};
    var i, part;
    for (i=0; i < len; i++) {
    part
    = serialized[i].split(=);
    result[decodeURIComponent(part[
    0])] = decodeURIComponent(part[1]);
    }
    return result;
    }

    // XMLHttpRequest Level 2 file uploads (big hat tip to francois2metz)
    function fileUploadXhr(a) {
    var formdata = new FormData();

    forvar i=0; i < a.length; i++) {
    formdata.append(a[i].name, a[i].value);
    }

    if (options.extraData) {
    var serializedData = deepSerialize(options.extraData);
    forvar p in serializedData)
    if (serializedData.hasOwnProperty(p))
    formdata.append(p, serializedData[p]);
    }

    options.data
    = null;

    var s = ¥.extend(true, {}, ¥.ajaxSettings, options, {
    contentType:
    false
    processData:
    false
    cache:
    false
    type:
    POST
    });

    if (options.uploadProgress) {
    // workaround because jqXHR does not expose upload property
    s.xhr = function() {
    var xhr = jQuery.ajaxSettings.xhr();
    if (xhr.upload) {
    xhr.upload.onprogress
    = function(event) {
    var percent = 0;
    var position = event.loaded || event.position; /event.position is deprecated/
    var total = event.total;
    if (event.lengthComputable) {
    percent
    = Math.ceil(position / total 100);
    }
    options.uploadProgress(event, position, total, percent);
    };
    }
    return xhr;
    };
    }

    s.data
    = null;
    var beforeSend = s.beforeSend;
    s.beforeSend
    = function(xhr, o) {
    o.data
    = formdata;
    if(beforeSend)
    beforeSend.call(
    this, xhr, o);
    };
    ¥.ajax(s);
    }

    // private function for handling file uploads (hat tip to YAHOO!)
    function fileUploadIframe(a) {
    var form = ¥form[0], el, i, s, g, id, ¥io, io, xhr, sub, n, timedOut, timeoutHandle;
    var useProp = !!¥.fn.prop;

    if (¥(:input[name=submit],:input[id=submit], form).length) {
    // if there is an input with a name or id of submit then we wont be
    // able to invoke the submit fn on the form (at least not x-browser)
    alert(Error: Form elements must not have name or id of submit.);
    return;
    }

    if (a) {
    // ensure that every serialized input is still enabled
    for (i=0; i < elements.length; i++) {
    el
    = ¥(elements[i]);
    if ( useProp )
    el.prop(
    disabled, false);
    else
    el.removeAttr(
    disabled);
    }
    }

    s
    = ¥.extend(true, {}, ¥.ajaxSettings, options);
    s.context
    = s.context || s;
    id
    = jqFormIO + (new Date().getTime());
    if (s.iframeTarget) {
    ¥io
    = ¥(s.iframeTarget);
    n
    = ¥io.attr(name);
    if (!n)
    ¥io.attr(
    name, id);
    else
    id
    = n;
    }
    else {
    ¥io
    = ¥(<iframe name= + id + src=+ s.iframeSrc + />);
    ¥io.css({ position:
    absolute, top: -1000px, left: -1000px });
    }
    io
    = ¥io[0];


    xhr
    = { // mock object
    aborted: 0
    responseText:
    null
    responseXML:
    null
    status:
    0
    statusText:
    n/a
    getAllResponseHeaders:
    function() {},
    getResponseHeader:
    function() {},
    setRequestHeader:
    function() {},
    abort:
    function(status) {
    var e = (status === timeout ? timeout : aborted);
    log(
    aborting upload... + e);
    this.aborted = 1;
    // #214
    if (io.contentWindow.document.execCommand) {
    try { // #214
    io.contentWindow.document.execCommand(Stop);
    }
    catch(ignore) {}
    }
    ¥io.attr(
    src, s.iframeSrc); // abort op in progress
    xhr.error = e;
    if (s.error)
    s.error.call(s.context, xhr, e, status);
    if (g)
    ¥.event.trigger(
    ajaxError, [xhr, s, e]);
    if (s.complete)
    s.complete.call(s.context, xhr, e);
    }
    };

    g
    = s.global;
    // trigger ajax global events so that activity/block indicators work like normal
    if (g && 0 === ¥.active++) {
    ¥.event.trigger(
    ajaxStart);
    }
    if (g) {
    ¥.event.trigger(
    ajaxSend, [xhr, s]);
    }

    if (s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false) {
    if (s.global) {
    ¥.active
    --;
    }
    return;
    }
    if (xhr.aborted) {
    return;
    }

    // add submitting element to data if we know it
    sub = form.clk;
    if (sub) {
    n
    = sub.name;
    if (n && !sub.disabled) {
    s.extraData
    = s.extraData || {};
    s.extraData[n]
    = sub.value;
    if (sub.type == image) {
    s.extraData[n
    +.x] = form.clk_x;
    s.extraData[n
    +.y] = form.clk_y;
    }
    }
    }

    var CLIENT_TIMEOUT_ABORT = 1;
    var SERVER_ABORT = 2;

    function getDoc(frame) {
    var doc = frame.contentWindow ? frame.contentWindow.document : frame.contentDocument ? frame.contentDocument : frame.document;
    return doc;
    }

    // Rails CSRF hack (thanks to Yvan Barthelemy)
    var csrf_token = ¥(meta[name=csrf-token]).attr(content);
    var csrf_param = ¥(meta[name=csrf-param]).attr(content);
    if (csrf_param && csrf_token) {
    s.extraData
    = s.extraData || {};
    s.extraData[csrf_param]
    = csrf_token;
    }

    // take a breath so that pending repaints get some cpu time before the upload starts
    function doSubmit() {
    // make sure form attrs are set
    var t = ¥form.attr(target), a = ¥form.attr(action);

    // form attrs in IE friendly way
    form.setAttribute(target,id);
    if (!method) {
    form.setAttribute(
    method, POST);
    }
    if (a != s.url) {
    form.setAttribute(
    action, s.url);
    }

    // ie borks in some cases when setting encoding
    if (! s.skipEncodingOverride && (!method || /post/i.test(method))) {
    ¥form.attr({
    encoding:
    multipart/form-data
    enctype:
    multipart/form-data
    });
    }

    // support timout
    if (s.timeout) {
    timeoutHandle
    = setTimeout(function() { timedOut = true; cb(CLIENT_TIMEOUT_ABORT); }, s.timeout);
    }

    // look for server aborts
    function checkState() {
    try {
    var state = getDoc(io).readyState;
    log(
    state = + state);
    if (state && state.toLowerCase() == uninitialized
    setTimeout(checkState,
    50);
    }
    catch(e) {
    log(
    Server abort: , e, (, e.name, ));
    cb(SERVER_ABORT);
    if (timeoutHandle)
    clearTimeout(timeoutHandle);
    timeoutHandle
    = undefined;
    }
    }

    // add extra data to form if provided in options
    var extraInputs = [];
    try {
    if (s.extraData) {
    forvar n in s.extraData) {
    if (s.extraData.hasOwnProperty(n)) {
    // if using the ¥.param format that allows for multiple values with the same name
    if(¥.isPlainObject(s.extraData[n]) && s.extraData[n].hasOwnProperty(name) && s.extraData[n].hasOwnProperty(value)) {
    extraInputs.push(
    ¥(
    <input type=hidden name=+s.extraData[n].name+>).attr(value,s.extraData[n].value)
    .appendTo(form)[
    0]);
    }
    else {
    extraInputs.push(
    ¥(
    <input type=hidden name=+n+>).attr(value,s.extraData[n])
    .appendTo(form)[
    0]);
    }
    }
    }
    }

    if (!s.iframeTarget) {
    // add iframe to doc and submit the form
    ¥io.appendTo(body);
    if (io.attachEvent)
    io.attachEvent(
    onload, cb);
    else
    io.addEventListener(
    load, cb, false);
    }
    setTimeout(checkState,
    15);
    form.submit();
    }
    finally {
    // reset attrs and remove extra input elements
    form.setAttribute(action,a);
    if(t) {
    form.setAttribute(
    target, t);
    }
    else {
    ¥form.removeAttr(
    target);
    }
    ¥(extraInputs).remove();
    }
    }

    if (s.forceSync) {
    doSubmit();
    }
    else {
    setTimeout(doSubmit,
    10); // this lets dom s render
    }

    var data, doc, domCheckCount = 50, callbackProcessed;

    function cb(e) {
    if (xhr.aborted || callbackProcessed) {
    return;
    }
    try {
    doc
    = getDoc(io);
    }
    catch(ex) {
    log(
    cannot access response document: , ex);
    e
    = SERVER_ABORT;
    }
    if (e === CLIENT_TIMEOUT_ABORT && xhr) {
    xhr.abort(
    timeout);
    return;
    }
    else if (e == SERVER_ABORT && xhr) {
    xhr.abort(
    server abort);
    return;
    }

    if (!doc || doc.location.href == s.iframeSrc) {
    // response not received yet
    if (!timedOut)
    return;
    }
    if (io.detachEvent)
    io.detachEvent(
    onload, cb);
    else
    io.removeEventListener(
    load, cb, false);

    var status = success, errMsg;
    try {
    if (timedOut) {
    throw timeout;
    }

    var isXml = s.dataType == xml || doc.XMLDocument || ¥.isXMLDoc(doc);
    log(
    isXml=+isXml);
    if (!isXml && window.opera && (doc.body === null || !doc.body.innerHTML)) {
    if (--domCheckCount) {
    // in some browsers (Opera) the iframe DOM is not always traversable when
    // the onload callback fires, so we loop a bit to accommodate
    log(requeing onLoad callback, DOM not available);
    setTimeout(cb,
    250);
    return;
    }
    // let this fall through because server response could be an empty document
    //log(Could not access iframe DOM after mutiple tries.);
    //throw DOMException: not available;
    }

    //log(response detected);
    var docRoot = doc.body ? doc.body : doc.documentElement;
    xhr.responseText
    = docRoot ? docRoot.innerHTML : null;
    xhr.responseXML
    = doc.XMLDocument ? doc.XMLDocument : doc;
    if (isXml)
    s.dataType
    = xml;
    xhr.getResponseHeader
    = function(header){
    var headers = {content-type: s.dataType};
    return headers[header];
    };
    // support for XHR status & statusText emulation :
    if (docRoot) {
    xhr.status
    = Number( docRoot.getAttribute(status) ) || xhr.status;
    xhr.statusText
    = docRoot.getAttribute(statusText) || xhr.statusText;
    }

    var dt = (s.dataType || ).toLowerCase();
    var scr = /(json|script|text)/.test(dt);
    if (scr || s.textarea) {
    // see if user embedded response in textarea
    var ta = doc.getElementsByTagName(textarea)[0];
    if (ta) {
    xhr.responseText
    = ta.value;
    // support for XHR status & statusText emulation :
    xhr.status = Number( ta.getAttribute(status) ) || xhr.status;
    xhr.statusText
    = ta.getAttribute(statusText) || xhr.statusText;
    }
    else if (scr) {
    // account for browsers injecting pre around json response
    var pre = doc.getElementsByTagName(pre)[0];
    var b = doc.getElementsByTagName(body)[0];
    if (pre) {
    xhr.responseText
    = pre.textContent ? pre.textContent : pre.innerText;
    }
    else if (b) {
    xhr.responseText
    = b.textContent ? b.textContent : b.innerText;
    }
    }
    }
    else if (dt == xml && !xhr.responseXML && xhr.responseText) {
    xhr.responseXML
    = toXml(xhr.responseText);
    }

    try {
    data
    = httpData(xhr, dt, s);
    }
    catch (e) {
    status
    = parsererror;
    xhr.error
    = errMsg = (e || status);
    }
    }
    catch (e) {
    log(
    error caught: ,e);
    status
    = error;
    xhr.error
    = errMsg = (e || status);
    }

    if (xhr.aborted) {
    log(
    upload aborted);
    status
    = null;
    }

    if (xhr.status) { // weve set xhr.status
    status = (xhr.status >= 200 && xhr.status < 300 || xhr.status === 304) ? success : error;
    }

    // ordering of these callbacks/triggers is odd, but thats how ¥.ajax does it
    if (status === success) {
    if (s.success)
    s.success.call(s.context, data,
    success, xhr);
    if (g)
    ¥.event.trigger(
    ajaxSuccess, [xhr, s]);
    }
    else if (status) {
    if (errMsg === undefined)
    errMsg
    = xhr.statusText;
    if (s.error)
    s.error.call(s.context, xhr, status, errMsg);
    if (g)
    ¥.event.trigger(
    ajaxError, [xhr, s, errMsg]);
    }

    if (g)
    ¥.event.trigger(
    ajaxComplete, [xhr, s]);

    if (g && ! --¥.active) {
    ¥.event.trigger(
    ajaxStop);
    }

    if (s.complete)
    s.complete.call(s.context, xhr, status);

    callbackProcessed
    = true;
    if (s.timeout)
    clearTimeout(timeoutHandle);

    // clean up
    setTimeout(function() {
    if (!s.iframeTarget)
    ¥io.remove();
    xhr.responseXML
    = null;
    },
    100);
    }

    var toXml = ¥.parseXML || function(s, doc) { // use parseXML if available (jQuery 1.5+)
    if (window.ActiveXObject) {
    doc
    = new ActiveXObject(Microsoft.XMLDOM);
    doc.async
    = false;
    doc.loadXML(s);
    }
    else {
    doc
    = (new DOMParser()).parseFromString(s, text/xml);
    }
    return (doc && doc.documentElement && doc.documentElement.nodeName != parsererror) ? doc : null;
    };
    var parseJSON = ¥.parseJSON || function(s) {
    /jslint evil:true /
    return window[eval](( + s + ));
    };

    var httpData = function( xhr, type, s ) { // mostly lifted jq1.4.4

    var ct = xhr.getResponseHeader(content-type) ||
    xml
    = type === xml || !type && ct.indexOf(xml) >= 0
    data
    = xml ? xhr.responseXML : xhr.responseText;

    if (xml && data.documentElement.nodeName === parsererror) {
    if (¥.error)
    ¥.error(
    parsererror);
    }
    if (s && s.dataFilter) {
    data
    = s.dataFilter(data, type);
    }
    iftypeof data === string) {
    if (type === json || !type && ct.indexOf(json) >= 0) {
    data
    = parseJSON(data);
    }
    else if (type === script || !type && ct.indexOf(javascript) >= 0) {
    ¥.globalEval(data);
    }
    }
    return data;
    };
    }
    };

    /
    ajaxForm() provides a mechanism for fully automating form submission.

    The advantages of using this method instead of ajaxSubmit() are:

    1: This method will include coordinates for <input type=image /> elements (if the element
    is used to submit the form).
    2. This method will include the submit elements name/value data (for the element that was
    used to submit the form).
    3. This method binds the submit() method to the form for you.

    The options argument for ajaxForm works exactly as it does for ajaxSubmit. ajaxForm merely
    passes the options argument along after properly binding events for submit elements and
    the form itself.
    /
    ¥.fn.ajaxForm
    = function(options) {
    options
    = options || {};
    options.delegation
    = options.delegation && ¥.isFunction(¥.fn.on);

    // in jQuery 1.3+ we can fix mistakes with the ready state
    if (!options.delegation && this.length === 0) {
    var o = { s: this.or, c: this.context };
    if (!¥.isReady && o.s) {
    log(
    DOM not ready, queuing ajaxForm);
    ¥(
    function() {
    ¥(o.s,o.c).ajaxForm(options);
    });
    return this;
    }
    // is your DOM ready? http://docs.jquery.com/Tutorials:Introducing_¥(document).ready()
    log(terminating; zero elements found by or + (¥.isReady ? : (DOM not ready)));
    return this;
    }

    if ( options.delegation ) {
    ¥(document)
    .off(
    submit.form-plugin, this.or, doAjaxSubmit)
    .off(
    click.form-plugin, this.or, captureSubmittingElement)
    .on(
    submit.form-plugin, this.or, options, doAjaxSubmit)
    .on(
    click.form-plugin, this.or, options, captureSubmittingElement);
    return this;
    }

    return this.ajaxFormUnbind()
    .bind(
    submit.form-plugin, options, doAjaxSubmit)
    .bind(
    click.form-plugin, options, captureSubmittingElement);
    };

    // private event handlers
    function doAjaxSubmit(e) {
    /jshint validthis:true /
    var options = e.data;
    if (!e.isDefaultPrevented()) { // if event has been canceled, dont proceed
    e.preventDefault();
    ¥(
    this).ajaxSubmit(options);
    }
    }

    function captureSubmittingElement(e) {
    /jshint validthis:true /
    var target = e.target;
    var ¥el = ¥(target);
    if (!(¥el.is(:submit,input:image))) {
    // is this a child element of the submit el? (ex: a span within a button)
    var t = ¥el.closest(:submit);
    if (t.length === 0) {
    return;
    }
    target
    = t[0];
    }
    var form = this;
    form.clk
    = target;
    if (target.type == image) {
    if (e.offsetX !== undefined) {
    form.clk_x
    = e.offsetX;
    form.clk_y
    = e.offsetY;
    }
    else iftypeof ¥.fn.offset == function) {
    var offset = ¥el.offset();
    form.clk_x
    = e.pageX - offset.left;
    form.clk_y
    = e.pageY - offset.top;
    }
    else {
    form.clk_x
    = e.pageX - target.offsetLeft;
    form.clk_y
    = e.pageY - target.offsetTop;
    }
    }
    // clear form vars
    setTimeout(function() { form.clk = form.clk_x = form.clk_y = null; }, 100);
    }


    // ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
    ¥.fn.ajaxFormUnbind = function() {
    return this.unbind(submit.form-plugin click.form-plugin);
    };

    /
    formToArray() gathers form element data into an array of objects that can
    be passed to any of the following ajax functions: ¥.get, ¥.post, or load.
    Each object in the array has both a name and value property. An example of
    an array for a simple login form might be:

    [ { name: username, value: jresig }, { name: password, value: secret } ]

    It is this array that is passed to pre-submit callback functions provided to the
    ajaxSubmit() and ajaxForm() methods.
    /
    ¥.fn.formToArray
    = function(semantic, elements) {
    var a = [];
    ifthis.length === 0) {
    return a;
    }

    var form = this[0];
    var els = semantic ? form.getElementsByTagName() : form.elements;
    if (!els) {
    return a;
    }

    var i,j,n,v,el,max,jmax;
    for(i=0, max=els.length; i < max; i++) {
    el
    = els[i];
    n
    = el.name;
    if (!n) {
    continue;
    }

    if (semantic && form.clk && el.type == image) {
    // handle image inputs on the fly when semantic == true
    if(!el.disabled && form.clk == el) {
    a.push({name: n, value: ¥(el).val(), type: el.type });
    a.push({name: n
    +.x, value: form.clk_x}, {name: n+.y, value: form.clk_y});
    }
    continue;
    }

    v
    = ¥.fieldValue(el, true);
    if (v && v.constructor == Array) {
    if (elements)
    elements.push(el);
    for(j=0, jmax=v.length; j < jmax; j++) {
    a.push({name: n, value: v[j]});
    }
    }
    else if (feature.fileapi && el.type == file && !el.disabled) {
    if (elements)
    elements.push(el);
    var files = el.files;
    if (files.length) {
    for (j=0; j < files.length; j++) {
    a.push({name: n, value: files[j], type: el.type});
    }
    }
    else {
    // #180
    a.push({ name: n, value: , type: el.type });
    }
    }
    else if (v !== null && typeof v != undefined) {
    if (elements)
    elements.push(el);
    a.push({name: n, value: v, type: el.type, required: el.required});
    }
    }

    if (!semantic && form.clk) {
    // input type==image are not found in elements array! handle it here
    var ¥input = ¥(form.clk), input = ¥input[0];
    n
    = input.name;
    if (n && !input.disabled && input.type == image) {
    a.push({name: n, value: ¥input.val()});
    a.push({name: n
    +.x, value: form.clk_x}, {name: n+.y, value: form.clk_y});
    }
    }
    return a;
    };

    /
    Serializes form data into a submittable string. This method will return a string
    in the format: name1=value1&amp;name2=value2
    /
    ¥.fn.formSerialize
    = function(semantic) {
    //hand off to jQuery.param for proper encoding
    return ¥.param(this.formToArray(semantic));
    };

    /
    Serializes all field elements in the jQuery object into a query string.
    This method will return a string in the format: name1=value1&amp;name2=value2
    /
    ¥.fn.fieldSerialize
    = function(successful) {
    var a = [];
    this.each(function() {
    var n = this.name;
    if (!n) {
    return;
    }
    var v = ¥.fieldValue(this, successful);
    if (v && v.constructor == Array) {
    forvar i=0,max=v.length; i < max; i++) {
    a.push({name: n, value: v[i]});
    }
    }
    else if (v !== null && typeof v != undefined) {
    a.push({name:
    this.name, value: v});
    }
    });
    //hand off to jQuery.param for proper encoding
    return ¥.param(a);
    };

    /
    Returns the value(s) of the element in the matched set. For example, consider the following form:

    <form><fieldset>
    <input name=A type=text />
    <input name=A type=text />
    <input name=B type=checkbox value=B1 />
    <input name=B type=checkbox value=B2/>
    <input name=C type=radio value=C1 />
    <input name=C type=radio value=C2 />
    </fieldset></form>

    var v = ¥(:text).fieldValue();
    // if no values are entered into the text inputs
    v == [,]
    // if values entered into the text inputs are foo and bar
    v == [foo,bar]

    var v = ¥(:checkbox).fieldValue();
    // if neither checkbox is checked
    v === undefined
    // if both checkboxes are checked
    v == [B1, B2]

    var v = ¥(:radio).fieldValue();
    // if neither radio is checked
    v === undefined
    // if first radio is checked
    v == [C1]

    The successful argument controls whether or not the field element must be successful
    (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
    The default value of the successful argument is true. If this value is false the value(s)
    for each element is returned.

    Note: This method always returns an array. If no valid value can be determined the
    array will be empty, otherwise it will contain one or more values.
    /
    ¥.fn.fieldValue
    = function(successful) {
    forvar val=[], i=0, max=this.length; i < max; i++) {
    var el = this[i];
    var v = ¥.fieldValue(el, successful);
    if (v === null || typeof v == undefined || (v.constructor == Array && !v.length)) {
    continue;
    }
    if (v.constructor == Array)
    ¥.merge(val, v);
    else
    val.push(v);
    }
    return val;
    };

    /
    Returns the value of the field element.
    /
    ¥.fieldValue
    = function(el, successful) {
    var n = el.name, t = el.type, tag = el.tagName.toLowerCase();
    if (successful === undefined) {
    successful
    = true;
    }

    if (successful && (!n || el.disabled || t == reset || t == button ||
    (t
    == checkbox || t == radio) && !el.checked ||
    (t
    == submit || t == image) && el.form && el.form.clk != el ||
    tag
    == && el.edIndex == -1)) {
    return null;
    }

    if (tag == ) {
    var index = el.edIndex;
    if (index < 0) {
    return null;
    }
    var a = [], ops = el.options;
    var one = (t == -one);
    var max = (one ? index+1 : ops.length);
    forvar i=(one ? index : 0); i < max; i++) {
    var op = ops[i];
    if (op.ed) {
    var v = op.value;
    if (!v) { // extra pain for IE...
    v = (op.attributes && op.attributes[value] && !(op.attributes[value].specified)) ? op.text : op.value;
    }
    if (one) {
    return v;
    }
    a.push(v);
    }
    }
    return a;
    }
    return ¥(el).val();
    };

    /
    Clears the form data. Takes the following actions on the forms input fields:
    - input text fields will have their value property set to the empty string
    - elements will have their edIndex property set to -1
    - checkbox and radio inputs will have their checked property set to false
    - inputs of type submit, button, reset, and hidden will not be effected
    - button elements will not be effected
    /
    ¥.fn.clearForm
    = function(includeHidden) {
    return this.each(function() {
    ¥(
    input,,textarea, this).clearFields(includeHidden);
    });
    };

    /
    Clears the ed form elements.
    /
    ¥.fn.clearFields
    = ¥.fn.clearInputs = function(includeHidden) {
    var re = /^(?:color|date|datetime|email|month|number|password|range|search|tel|text|time|url|week)¥/i; // hidden is not in this list
    return this.each(function() {
    var t = this.type, tag = this.tagName.toLowerCase();
    if (re.test(t) || tag == textarea) {
    this.value = ;
    }
    else if (t == checkbox || t == radio) {
    this.checked = false;
    }
    else if (tag == ) {
    this.edIndex = -1;
    }
    else if (includeHidden) {
    // includeHidden can be the value true, or it can be a or string
    // indicating a special test; for example:
    // ¥(#myForm).clearForm(.special:hidden)
    // the above would clean hidden inputs that have the class of special
    if ( (includeHidden === true && /hidden/.test(t)) ||
    typeof includeHidden == string && ¥(this).is(includeHidden)) )
    this.value = ;
    }
    });
    };

    /
    Resets the form data. Causes all form elements to be reset to their original value.
    /
    ¥.fn.resetForm
    = function() {
    return this.each(function() {
    // guard against an input with the name of reset
    // note that IE reports the reset function as an object
    iftypeof this.reset == function || (typeof this.reset == object && !this.reset.nodeType)) {
    this.reset();
    }
    });
    };

    /
    Enables or disables any matching elements.
    /
    ¥.fn.enable
    = function(b) {
    if (b === undefined) {
    b
    = true;
    }
    return this.each(function() {
    this.disabled = !b;
    });
    };

    /
    Checks/unchecks any matching checkboxes or radio buttons and
    s/des and matching option elements.
    /
    ¥.fn.ed
    = function() {
    if ( === undefined) {
    = true;
    }
    return this.each(function() {
    var t = this.type;
    if (t == checkbox || t == radio) {
    this.checked = ;
    }
    else ifthis.tagName.toLowerCase() == option) {
    var ¥sel = ¥(this).parent();
    if ( && ¥sel[0] && ¥sel[0].type == -one) {
    // de all other options
    ¥sel.find(option).ed(false);
    }
    this.ed = ;
    }
    });
    };

    // expose debug var
    ¥.fn.ajaxSubmit.debug = false;

    // helper fn for console logging
    function log() {
    if (!¥.fn.ajaxSubmit.debug)
    return;
    var msg = [jquery.form] + Array.prototype.join.call(arguments,);
    if (window.console && window.console.log) {
    window.console.log(msg);
    }
    else if (window.opera && window.opera.postError) {
    window.opera.postError(msg);
    }
    }

    })(jQuery);


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