/*!
* jQuery Form Plugin
* version: 2.67 (12-MAR-2011)
* @requires jQuery v1.3.2 or later
*
* Examples and documentation at: http://malsup.com/jquery/form/
* Dual licensed under the MIT and GPL licenses:
*   http://www.opensource.org/licenses/mit-license.php
*   http://www.gnu.org/licenses/gpl.html
*/
; (function ($) {


    $.fn.ajaxSubmit = function (options) {
        // fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
        if (!this.length) {
            log('ajaxSubmit: skipping submit process - no element selected');
            return this;
        }

        if (typeof options == 'function') {
            options = { success: options };
        }

        var action = this.attr('action');
        var url = (typeof action === 'string') ? $.trim(action) : '';
        if (url) {
            // clean url (don't include hash vaue)
            url = (url.match(/^([^#]+)/) || [])[1];
        }
        url = url || window.location.href || '';

        options = $.extend(true, {
            url: url,
            type: this[0].getAttribute('method') || 'GET', // IE7 massage (see issue 57)
            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 n, v, a = this.formToArray(options.semantic);
        if (options.data) {
            options.extraData = options.data;
            for (n in options.data) {
                if (options.data[n] instanceof Array) {
                    for (var k in options.data[n]) {
                        a.push({ name: n, value: options.data[n][k] });
                    }
                }
                else {
                    v = options.data[n];
                    v = $.isFunction(v) ? v() : v; // if value is fn, invoke it
                    a.push({ name: n, value: v });
                }
            }
        }

        // 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);

        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 $form = this, callbacks = [];
        if (options.resetForm) {
            callbacks.push(function () { $form.resetForm(); });
        }
        if (options.clearForm) {
            callbacks.push(function () { $form.clearForm(); });
        }

        // 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 || options;   // jQuery 1.4+ supports scope context 
            for (var i = 0, max = callbacks.length; i < max; i++) {
                callbacks[i].apply(context, [data, status, xhr || $form, $form]);
            }
        };

        // are there files to upload?
        var fileInputs = $('input:file', this).length > 0;
        var mp = 'multipart/form-data';
        var multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);

        // 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 && (fileInputs || options.iframe || multipart)) {
            // 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, fileUpload);
            }
            else {
                fileUpload();
            }
        }
        else {
            $.ajax(options);
        }

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


        // private function for handling file uploads (hat tip to YAHOO!)
        function fileUpload() {
            var form = $form[0];

            if ($(':input[name=submit],:input[id=submit]', form).length) {
                // if there is an input with a name or id of 'submit' then we won't 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;
            }

            var s = $.extend(true, {}, $.ajaxSettings, options);
            s.context = s.context || s;
            var id = 'jqFormIO' + (new Date().getTime()), fn = '_' + id;
            var $io = $('<iframe id="' + id + '" name="' + id + '" src="' + s.iframeSrc + '" />');
            var io = $io[0];

            $io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });

            var xhr = { // mock object
                aborted: 0,
                responseText: null,
                responseXML: null,
                status: 0,
                statusText: 'n/a',
                getAllResponseHeaders: function () { },
                getResponseHeader: function () { },
                setRequestHeader: function () { },
                abort: function () {
                    log('aborting upload...');
                    var e = 'aborted';
                    this.aborted = 1;
                    $io.attr('src', s.iframeSrc); // abort op in progress
                    xhr.error = e;
                    s.error && s.error.call(s.context, xhr, 'error', e);
                    g && $.event.trigger("ajaxError", [xhr, s, e]);
                    s.complete && s.complete.call(s.context, xhr, 'error');
                }
            };

            var g = s.global;
            // trigger ajax global events so that activity/block indicators work like normal
            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;
            }

            var timedOut = 0;

            // add submitting element to data if we know it
            var sub = form.clk;
            if (sub) {
                var 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;
                    }
                }
            }

            // 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');

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

                // ie borks in some cases when setting encoding
                if (!s.skipEncodingOverride) {
                    $form.attr({
                        encoding: 'multipart/form-data',
                        enctype: 'multipart/form-data'
                    });
                }

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

                // add "extra" data to form if provided in options
                var extraInputs = [];
                try {
                    if (s.extraData) {
                        for (var n in s.extraData) {
                            extraInputs.push(
							$('<input type="hidden" name="' + n + '" value="' + s.extraData[n] + '" />')
								.appendTo(form)[0]);
                        }
                    }

                    // add iframe to doc and submit the form
                    $io.appendTo('body');
                    io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
                    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 updates render
            }

            var data, doc, domCheckCount = 50;

            function cb() {
                if (xhr.aborted) {
                    return;
                }

                var doc = io.contentWindow ? io.contentWindow.document : io.contentDocument ? io.contentDocument : io.document;
                if (!doc || doc.location.href == s.iframeSrc) {
                    // response not received yet
                    return;
                }
                io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);

                var ok = true;
                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');
                    xhr.responseText = doc.body ? doc.body.innerHTML : doc.documentElement ? doc.documentElement.innerHTML : null;
                    xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
                    xhr.getResponseHeader = function (header) {
                        var headers = { 'content-type': s.dataType };
                        return headers[header];
                    };

                    var scr = /(json|script)/.test(s.dataType);
                    if (scr || s.textarea) {
                        // see if user embedded response in textarea
                        var ta = doc.getElementsByTagName('textarea')[0];
                        if (ta) {
                            xhr.responseText = ta.value;
                        }
                        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;
                            }
                            else if (b) {
                                xhr.responseText = b.innerHTML;
                            }
                        }
                    }
                    else if (s.dataType == 'xml' && !xhr.responseXML && xhr.responseText != null) {
                        xhr.responseXML = toXml(xhr.responseText);
                    }

                    data = httpData(xhr, s.dataType, s);
                }
                catch (e) {
                    log('error caught:', e);
                    ok = false;
                    xhr.error = e;
                    s.error && s.error.call(s.context, xhr, 'error', e);
                    g && $.event.trigger("ajaxError", [xhr, s, e]);
                }

                if (xhr.aborted) {
                    log('upload aborted');
                    ok = false;
                }

                // ordering of these callbacks/triggers is odd, but that's how $.ajax does it
                if (ok) {
                    s.success && s.success.call(s.context, data, 'success', xhr);
                    g && $.event.trigger("ajaxSuccess", [xhr, s]);
                }

                g && $.event.trigger("ajaxComplete", [xhr, s]);

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

                s.complete && s.complete.call(s.context, xhr, ok ? 'success' : 'error');

                // clean up
                setTimeout(function () {
                    $io.removeData('form-plugin-onload');
                    $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) {
                return window['eval']('(' + s + ')');
            };

            var httpData = function (xhr, type, s) { // mostly lifted from 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') {
                    $.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;
            };
        }
    };

    /**
    * 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 element's 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.
    */
    $.fn.ajaxForm = function (options) {
        // in jQuery 1.3+ we can fix mistakes with the ready state
        if (this.length === 0) {
            var o = { s: this.selector, c: this.context };
            if (!$.isReady && o.s) {
                log('DOM not ready, queuing ajaxForm');
                $(function () {
                    $(o.s, o.c).ajaxForm(options);
                });
                return this;
            }
            // is your DOM ready?  http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
            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()) { // if event has been canceled, don't proceed
                e.preventDefault();
                $(this).ajaxSubmit(options);
            }
        }).bind('click.form-plugin', function (e) {
            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 if (typeof $.fn.offset == 'function') { // try to use dimensions plugin
                    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) {
        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") {
                // handle image inputs on the fly when semantic == true
                if (!el.disabled && form.clk == el) {
                    a.push({ name: n, value: $(el).val() });
                    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 });
            }
        }

        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) {
                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 });
            }
        });
        //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) {
        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;
    };

    /**
    * 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 == '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();
    };

    /**
    * Clears the form data.  Takes the following actions on the form's input fields:
    *  - input text fields will have their 'value' property set to the empty string
    *  - select elements will have their 'selectedIndex' 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 () {
        return this.each(function () {
            $('input,select,textarea', this).clearFields();
        });
    };

    /**
    * Clears the selected form elements.
    */
    $.fn.clearFields = $.fn.clearInputs = function () {
        return this.each(function () {
            var t = this.type, tag = this.tagName.toLowerCase();
            if (t == 'text' || t == 'password' || tag == 'textarea') {
                this.value = '';
            }
            else if (t == 'checkbox' || t == 'radio') {
                this.checked = false;
            }
            else if (tag == 'select') {
                this.selectedIndex = -1;
            }
        });
    };

    /**
    * 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'
            if (typeof 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
    * selects/deselects and matching option elements.
    */
    $.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;
            }
        });
    };

    // helper fn for console logging
    // set $.fn.ajaxSubmit.debug to true to enable debug logging
    function log() {
        if ($.fn.ajaxSubmit.debug) {
            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);