;(function($) {
$.fn.ajaxSubmit = function(options) {
    if (!this.length) {
        log('ajaxSubmit: skipping submit process - no element selected');
        return this;
    }
    var method, action, url, $form = this;
    if (typeof 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) {
        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);
    var veto = {};
    this.trigger('form-pre-serialize', [this, options, veto]);
    if (veto.veto) {
        log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');
        return this;
    }
    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 qx,n,v,a = this.formToArray(options.semantic);
    if (options.data) {
        options.extraData = options.data;
        qx = $.param(options.data, traditional);
    }
    if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
        log('ajaxSubmit: submit aborted via beforeSubmit callback');
        return this;
    }
    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;
    }
    var callbacks = [];
    if (options.resetForm) {
        callbacks.push(function() { $form.resetForm(); });
    }
    if (options.clearForm) {
        callbacks.push(function() { $form.clearForm(options.includeHidden); });
    }
    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) {
        var context = options.context || options;
        for (var i=0, max=callbacks.length; i < max; i++) {
            callbacks[i].apply(context, [data, status, xhr || $form, $form]);
        }
    };
    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 = !!(hasFileInputs && fileInputs.get(0).files && window.FormData);
    log("fileAPI :" + fileAPI);
    var shouldUseFrame = (hasFileInputs || multipart) && !fileAPI;
    if (options.iframe !== false && (options.iframe || shouldUseFrame)) {
        if (options.closeKeepAlive) {
            $.get(options.closeKeepAlive, function() {
                fileUploadIframe(a);
            });
        }
          else {
            fileUploadIframe(a);
          }
    }
    else if ((hasFileInputs || multipart) && fileAPI) {
        options.progress = options.progress || $.noop;
        fileUploadXhr(a);
    }
    else {
        $.ajax(options);
    }
     this.trigger('form-submit-notify', [this, options]);
     return this;
    function fileUploadXhr(a) {
        var formdata = new FormData();
        for (var i=0; i < a.length; i++) {
            if (a[i].type == 'file')
                continue;
            formdata.append(a[i].name, a[i].value);
        }
        $form.find('input:file:enabled').each(function(){
            var name = $(this).attr('name'), files = this.files;
            if (name) {
                for (var i=0; i < files.length; i++)
                    formdata.append(name, files[i]);
            }
        });
        if (options.extraData) {
            for (var k in options.extraData)
                formdata.append(k, options.extraData[k])
        }
        options.data = null;
        var s = $.extend(true, {}, $.ajaxSettings, options, {
            contentType: false,
            processData: false,
            cache: false,
            type: 'POST'
        });
      s.context = s.context || s;
      s.data = null;
      var beforeSend = s.beforeSend;
      s.beforeSend = function(xhr, o) {
          o.data = formdata;
          if(xhr.upload) {
              xhr.upload.onprogress = function(event) {
                  o.progress(event.position, event.total);
              };
          }
          if(beforeSend)
              beforeSend.call(o, xhr, options);
      };
      $.ajax(s);
   }
    function fileUploadIframe(a) {
        var form = $form[0], el, i, s, g, id, $io, io, xhr, sub, n, timedOut, timeoutHandle;
        var useProp = !!$.fn.prop;
        if (a) {
            if ( useProp ) {
                for (i=0; i < a.length; i++) {
                    el = $(form[a[i].name]);
                    el.prop('disabled', false);
                }
            } else {
                for (i=0; i < a.length; i++) {
                    el = $(form[a[i].name]);
                    el.removeAttr('disabled');
                }
            };
        }
        if ($(':input[name=submit],:input[id=submit]', form).length) {
            alert('Error: Form elements must not have name or id of "submit".');
            return;
        }
        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 == null)
                 $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 = {
            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;
                $io.attr('src', s.iframeSrc);
                xhr.error = e;
                s.error && s.error.call(s.context, xhr, e, status);
                g && $.event.trigger("ajaxError", [xhr, s, e]);
                s.complete && s.complete.call(s.context, xhr, e);
            }
        };
        g = s.global;
        if (g && ! $.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;
        }
        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;
        }
        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;
        }
        function doSubmit() {
            var t = $form.attr('target'), a = $form.attr('action');
            form.setAttribute('target',id);
            if (!method) {
                form.setAttribute('method', 'POST');
            }
            if (a != s.url) {
                form.setAttribute('action', s.url);
            }
            if (! s.skipEncodingOverride && (!method || /post/i.test(method))) {
                $form.attr({
                    encoding: 'multipart/form-data',
                    enctype:  'multipart/form-data'
                });
            }
            if (s.timeout) {
                timeoutHandle = setTimeout(function() { timedOut = true; cb(CLIENT_TIMEOUT_ABORT); }, s.timeout);
            }
            function checkState() {
                try {
                    var state = getDoc(io).readyState;
                    log('state = ' + state);
                    if (state.toLowerCase() == 'uninitialized')
                        setTimeout(checkState,50);
                }
                catch(e) {
                    log('Server abort: ' , e, ' (', e.name, ')');
                    cb(SERVER_ABORT);
                    timeoutHandle && clearTimeout(timeoutHandle);
                    timeoutHandle = undefined;
                }
            }
            var extraInputs = [];
            try {
                if (s.extraData) {
                    for (var n in s.extraData) {
                        extraInputs.push(
                            $('<input type="hidden" name="'+n+'">').attr('value',s.extraData[n])
                                .appendTo(form)[0]);
                    }
                }
                if (!s.iframeTarget) {
                    $io.appendTo('body');
                    io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
                }
                setTimeout(checkState,15);
                form.submit();
            }
            finally {
                form.setAttribute('action',a);
                if(t) {
                    form.setAttribute('target', t);
                } else {
                    $form.removeAttr('target');
                }
                $(extraInputs).remove();
            }
        }
        if (s.forceSync) {
            doSubmit();
        }
        else {
            setTimeout(doSubmit, 10);
        }
        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) {
                if (!timedOut)
                    return;
            }
            io.detachEvent ? io.detachEvent('onload', cb) : 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) {
                        log('requeing onLoad callback, DOM not available');
                        setTimeout(cb, 250);
                        return;
                    }
                }
                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];
                };
                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) {
                    var ta = doc.getElementsByTagName('textarea')[0];
                    if (ta) {
                        xhr.responseText = ta.value;
                        xhr.status = Number( ta.getAttribute('status') ) || xhr.status;
                        xhr.statusText = ta.getAttribute('statusText') || xhr.statusText;
                    }
                    else if (scr) {
                        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 != null) {
                    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) {
                status = (xhr.status >= 200 && xhr.status < 300 || xhr.status === 304) ? 'success' : 'error';
            }
            if (status === 'success') {
                s.success && s.success.call(s.context, data, 'success', xhr);
                g && $.event.trigger("ajaxSuccess", [xhr, s]);
            }
            else if (status) {
                if (errMsg == undefined)
                    errMsg = xhr.statusText;
                s.error && s.error.call(s.context, xhr, status, errMsg);
                g && $.event.trigger("ajaxError", [xhr, s, errMsg]);
            }
            g && $.event.trigger("ajaxComplete", [xhr, s]);
            if (g && ! --$.active) {
                $.event.trigger("ajaxStop");
            }
            s.complete && s.complete.call(s.context, xhr, status);
            callbackProcessed = true;
            if (s.timeout)
                clearTimeout(timeoutHandle);
            setTimeout(function() {
                if (!s.iframeTarget)
                    $io.remove();
                xhr.responseXML = null;
            }, 100);
        }
        var toXml = $.parseXML || function(s, doc) {
            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) {
            return window['eval']('(' + s + ')');
        };
        var httpData = function( xhr, type, s ) {
            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') {
                $.error && $.error('parsererror');
            }
            if (s && s.dataFilter) {
                data = s.dataFilter(data, type);
            }
            if (typeof 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;
        };
    }
};
$.fn.ajaxForm = function(options) {
    if (this.length === 0) {
        var o = { s: this.selector, c: this.context };
        if (!$.isReady && o.s) {
            log('DOM not ready, queuing ajaxForm');
            $(function() {
                $(o.s,o.c).ajaxForm(options);
            });
            return this;
        }
        log('terminating; zero elements found by selector' + ($.isReady ? '' : ' (DOM not ready)'));
        return this;
    }
    return this.ajaxFormUnbind().bind('submit.form-plugin', function(e) {
        if (!e.isDefaultPrevented()) {
            e.preventDefault();
            $(this).ajaxSubmit(options);
        }
    }).bind('click.form-plugin', function(e) {
        var target = e.target;
        var $el = $(target);
        if (!($el.is(":submit,input:image"))) {
            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 if (typeof $.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;
            }
        }
        setTimeout(function() { form.clk = form.clk_x = form.clk_y = null; }, 100);
    });
};
$.fn.ajaxFormUnbind = function() {
    return this.unbind('submit.form-plugin click.form-plugin');
};
$.fn.formToArray = function(semantic) {
    var a = [];
    if (this.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") {
            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) {
            for(j=0, jmax=v.length; j < jmax; j++) {
                a.push({name: n, value: v[j]});
            }
        }
        else if (v !== null && typeof v != 'undefined') {
            a.push({name: n, value: v, type: el.type});
        }
    }
    if (!semantic && form.clk) {
        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;
};
$.fn.formSerialize = function(semantic) {
    return $.param(this.formToArray(semantic));
};
$.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) {
            for (var 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});
        }
    });
    return $.param(a);
};
$.fn.fieldValue = function(successful) {
    for (var 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;
        }
        v.constructor == Array ? $.merge(val, v) : val.push(v);
    }
    return val;
};
$.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 == 'select' && el.selectedIndex == -1)) {
            return null;
    }
    if (tag == 'select') {
        var index = el.selectedIndex;
        if (index < 0) {
            return null;
        }
        var a = [], ops = el.options;
        var one = (t == 'select-one');
        var max = (one ? index+1 : ops.length);
        for(var i=(one ? index : 0); i < max; i++) {
            var op = ops[i];
            if (op.selected) {
                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();
};
$.fn.clearForm = function(includeHidden) {
    return this.each(function() {
        $('input,select,textarea', this).clearFields(includeHidden);
    });
};
$.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' || (includeHidden && /hidden/.test(t)) ) {
            this.value = '';
        }
        else if (t == 'checkbox' || t == 'radio') {
            this.checked = false;
        }
        else if (tag == 'select') {
            this.selectedIndex = -1;
        }
    });
};
$.fn.resetForm = function() {
    return this.each(function() {
        if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType)) {
            this.reset();
        }
    });
};
$.fn.enable = function(b) {
    if (b === undefined) {
        b = true;
    }
    return this.each(function() {
        this.disabled = !b;
    });
};
$.fn.selected = function(select) {
    if (select === undefined) {
        select = true;
    }
    return this.each(function() {
        var t = this.type;
        if (t == 'checkbox' || t == 'radio') {
            this.checked = select;
        }
        else if (this.tagName.toLowerCase() == 'option') {
            var $sel = $(this).parent('select');
            if (select && $sel[0] && $sel[0].type == 'select-one') {
                // deselect all other options
                $sel.find('option').selected(false);
            }
            this.selected = select;
        }
    });
};
$.fn.ajaxSubmit.debug = false;
function log() {
    if (!$.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);