text: /*
   * jQuery Form Plugin
   * version: 2.08 (04/29/2008)
   * @requires jQuery v1.2.2 or later
   *
   * Examples 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
   *
   * Revision: $Id$
   */
  (function($) {
  
  /**
   * ajaxSubmit() provides a mechanism for submitting an HTML form using AJAX.
   *
   * ajaxSubmit accepts a single argument which can be either a success callback function
   * or an options Object.  If a function is provided it will be invoked upon successful
   * completion of the submit and will be passed the response from the server.
   * If an options Object is provided, the following attributes are supported:
   *
   *  target:   Identifies the element(s) in the page to be updated with the server response.
   *            This value may be specified as a jQuery selection string, a jQuery object,
   *            or a DOM element.
   *            default value: null
   *
   *  url:      URL to which the form data will be submitted.
   *            default value: value of form's 'action' attribute
   *
   *  type:     The method in which the form data should be submitted, 'GET' or 'POST'.
   *            default value: value of form's 'method' attribute (or 'GET' if none found)
   *
   *  data:     Additional data to add to the request, specified as key/value pairs (see $.ajax).
   *
   *  beforeSubmit:  Callback method to be invoked before the form is submitted.
   *            default value: null
   *
   *  success:  Callback method to be invoked after the form has been successfully submitted
   *            and the response has been returned from the server
   *            default value: null
   *
   *  dataType: Expected dataType of the response.  One of: null, 'xml', 'script', or 'json'
   *            default value: null
   *
   *  semantic: Boolean flag indicating whether data must be submitted in semantic order (slower).
   *            default value: false
   *
   *  resetForm: Boolean flag indicating whether the form should be reset if the submit is successful
   *
   *  clearForm: Boolean flag indicating whether the form should be cleared if the submit is successful
   *
   *
   * The 'beforeSubmit' callback can be provided as a hook for running pre-submit logic or for
   * validating the form data.  If the 'beforeSubmit' callback returns false then the form will
   * not be submitted. The 'beforeSubmit' callback is invoked with three arguments: the form data
   * in array format, the jQuery object, and the options object passed into ajaxSubmit.
   * The form data array takes the following form:
   *
   *     [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]
   *
   * If a 'success' callback method is provided it is invoked after the response has been returned
   * from the server.  It is passed the responseText or responseXML value (depending on dataType).
   * See jQuery.ajax for further details.
   *
   *
   * The dataType option provides a means for specifying how the server response should be handled.
   * This maps directly to the jQuery.httpData method.  The following values are supported:
   *
   *      'xml':    if dataType == 'xml' the server response is treated as XML and the 'success'
   *                   callback method, if specified, will be passed the responseXML value
   *      'json':   if dataType == 'json' the server response will be evaluted and passed to
   *                   the 'success' callback, if specified
   *      'script': if dataType == 'script' the server response is evaluated in the global context
   *
   *
   * Note that it does not make sense to use both the 'target' and 'dataType' options.  If both
   * are provided the target will be ignored.
   *
   * The semantic argument can be used to force form serialization in semantic order.
   * This is normally true anyway, unless the form contains input elements of type='image'.
   * If your form must be submitted with name/value pairs in semantic order and your form
   * contains an input of type='image" then pass true for this arg, otherwise pass false
   * (or nothing) to avoid the overhead for this logic.
   *
   *
   * When used on its own, ajaxSubmit() is typically bound to a form's submit event like this:
   *
   * $("#form-id").submit(function() {
   *     $(this).ajaxSubmit(options);
   *     return false; // cancel conventional submit
   * });
   *
   * When using ajaxForm(), however, this is done for you.
   *
   * @example
   * $('#myForm').ajaxSubmit(function(data) {
   *     alert('Form submit succeeded! Server returned: ' + data);
   * });
   * @desc Submit form and alert server response
   *
   *
   * @example
   * var options = {
   *     target: '#myTargetDiv'
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc Submit form and update page element with server response
   *
   *
   * @example
   * var options = {
   *     success: function(responseText) {
   *         alert(responseText);
   *     }
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc Submit form and alert the server response
   *
   *
   * @example
   * var options = {
   *     beforeSubmit: function(formArray, jqForm) {
   *         if (formArray.length == 0) {
   *             alert('Please enter data.');
   *             return false;
   *         }
   *     }
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc Pre-submit validation which aborts the submit operation if form data is empty
   *
   *
   * @example
   * var options = {
   *     url: myJsonUrl.php,
   *     dataType: 'json',
   *     success: function(data) {
   *        // 'data' is an object representing the the evaluated json data
   *     }
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc json data returned and evaluated
   *
   *
   * @example
   * var options = {
   *     url: myXmlUrl.php,
   *     dataType: 'xml',
   *     success: function(responseXML) {
   *        // responseXML is XML document object
   *        var data = $('myElement', responseXML).text();
   *     }
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc XML data returned from server
   *
   *
   * @example
   * var options = {
   *     resetForm: true
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc submit form and reset it if successful
   *
   * @example
   * $('#myForm).submit(function() {
   *    $(this).ajaxSubmit();
   *    return false;
   * });
   * @desc Bind form's submit event to use ajaxSubmit
   *
   *
   * @name ajaxSubmit
   * @type jQuery
   * @param options  object literal containing options which control the form submission process
   * @cat Plugins/Form
   * @return jQuery
   */
  $.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 };
  
      options = $.extend({
          url:  this.attr('action') || window.location.toString(),
          type: this.attr('method') || 'GET'
      }, 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;
     }
  
      var a = this.formToArray(options.semantic);
      if (options.data) {
          options.extraData = options.data;
          for (var n in options.data)
              a.push( { name: n, value: options.data[n] } );
      }
  
      // 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) {
              $(options.target).html(data).each(oldSuccess, arguments);
          });
      }
      else if (options.success)
          callbacks.push(options.success);
  
      options.success = function(data, status) {
          for (var i=0, max=callbacks.length; i < max; i++)
              callbacks[i](data, status, $form);
      };
  
      // are there files to upload?
      var files = $('input:file', this).fieldValue();
      var found = false;
      for (var j=0; j < files.length; j++)
          if (files[j])
              found = true;
  
      // options.iframe allows user to force iframe mode
     if (options.iframe || found) { 
         // hack to fix Safari hang (thanks to Tim Molendijk for this)
         // see:  http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
         if ($.browser.safari && 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];
          var opts = $.extend({}, $.ajaxSettings, options);
  
          var id = 'jqFormIO' + (new Date().getTime());
          var $io = $('<iframe id="' + id + '" name="' + id + '" />');
          var io = $io[0];
          var op8 = $.browser.opera && window.opera.version() < 9;
          if ($.browser.msie || op8) io.src = 'javascript:false;document.write("");';
          $io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
  
          var xhr = { // mock object
              responseText: null,
              responseXML: null,
              status: 0,
              statusText: 'n/a',
              getAllResponseHeaders: function() {},
              getResponseHeader: function() {},
              setRequestHeader: function() {}
          };
  
          var g = opts.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, opts]);
  
          var cbInvoked = 0;
          var timedOut = 0;
  
          // take a breath so that pending repaints get some cpu time before the upload starts
          setTimeout(function() {
              // make sure form attrs are set
              var t = $form.attr('target'), a = $form.attr('action');
              $form.attr({
                  target:   id,
                  encoding: 'multipart/form-data',
                  enctype:  'multipart/form-data',
                  method:   'POST',
                  action:   opts.url
              });
  
              // support timout
              if (opts.timeout)
                  setTimeout(function() { timedOut = true; cb(); }, opts.timeout);
  
              // add "extra" data to form if provided in options
              var extraInputs = [];
              try {
                  if (options.extraData)
                      for (var n in options.extraData)
                          extraInputs.push(
                              $('<input type="hidden" name="'+n+'" value="'+options.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.attr('action', a);
                  t ? $form.attr('target', t) : $form.removeAttr('target');
                  $(extraInputs).remove();
              }
          }, 10);
  
          function cb() {
              if (cbInvoked++) return;
  
              io.detachEvent ? io.detachEvent('onload', cb) : io.removeEventListener('load', cb, false);
  
              var ok = true;
              try {
                  if (timedOut) throw 'timeout';
                  // extract the server response from the iframe
                  var data, doc;
                  doc = io.contentWindow ? io.contentWindow.document : io.contentDocument ? io.contentDocument : io.document;
                  xhr.responseText = doc.body ? doc.body.innerHTML : null;
                  xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
                  xhr.getResponseHeader = function(header){
                      var headers = {'content-type': opts.dataType};
                      return headers[header];
                  };
  
                  if (opts.dataType == 'json' || opts.dataType == 'script') {
                      var ta = doc.getElementsByTagName('textarea')[0];
                      xhr.responseText = ta ? ta.value : xhr.responseText;
                  }
                  else if (opts.dataType == 'xml' && !xhr.responseXML && xhr.responseText != null) {
                      xhr.responseXML = toXml(xhr.responseText);
                  }
                  data = $.httpData(xhr, opts.dataType);
              }
              catch(e){
                  ok = false;
                  $.handleError(opts, xhr, 'error', e);
              }
  
              // ordering of these callbacks/triggers is odd, but that's how $.ajax does it
              if (ok) {
                  opts.success(data, 'success');
                  if (g) $.event.trigger("ajaxSuccess", [xhr, opts]);
              }
              if (g) $.event.trigger("ajaxComplete", [xhr, opts]);
              if (g && ! --$.active) $.event.trigger("ajaxStop");
              if (opts.complete) opts.complete(xhr, ok ? 'success' : 'error');
  
              // clean up
              setTimeout(function() {
                  $io.remove();
                  xhr.responseXML = null;
              }, 100);
          };
  
          function toXml(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.tagName != 'parsererror') ? doc : null;
          };
      };
  };
  
  /**
   * 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.
   *
   * Note that for accurate x/y coordinates of image submit elements in all browsers
   * you need to also use the "dimensions" plugin (this method will auto-detect its presence).
   *
   * 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.  See ajaxSubmit for a full description of the options argument.
   *
   *
   * @example
   * var options = {
   *     target: '#myTargetDiv'
   * };
   * $('#myForm').ajaxSForm(options);
   * @desc Bind form's submit event so that 'myTargetDiv' is updated with the server response
   *       when the form is submitted.
   *
   *
   * @example
   * var options = {
   *     success: function(responseText) {
   *         alert(responseText);
   *     }
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc Bind form's submit event so that server response is alerted after the form is submitted.
   *
   *
   * @example
   * var options = {
   *     beforeSubmit: function(formArray, jqForm) {
   *         if (formArray.length == 0) {
   *             alert('Please enter data.');
   *             return false;
   *         }
   *     }
   * };
   * $('#myForm').ajaxSubmit(options);
   * @desc Bind form's submit event so that pre-submit callback is invoked before the form
   *       is submitted.
   *
   *
   * @name   ajaxForm
   * @param  options  object literal containing options which control the form submission process
   * @return jQuery
   * @cat    Plugins/Form
   * @type   jQuery
   */
  $.fn.ajaxForm = function(options) {
      return this.ajaxFormUnbind().bind('submit.form-plugin',function() {
          $(this).ajaxSubmit(options);
          return false;
      }).each(function() {
          // store options in hash
          $(":submit,input:image", this).bind('click.form-plugin',function(e) {
              var $form = this.form;
              $form.clk = this;
              if (this.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 = $(this).offset();
                      $form.clk_x = e.pageX - offset.left;
                      $form.clk_y = e.pageY - offset.top;
                  } else {
                      $form.clk_x = e.pageX - this.offsetLeft;
                      $form.clk_y = e.pageY - this.offsetTop;
                  }
              }
              // clear form vars
              setTimeout(function() { $form.clk = $form.clk_x = $form.clk_y = null; }, 10);
          });
      });
  };
  
  
  /**
   * ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
   *
   * @name   ajaxFormUnbind
   * @return jQuery
   * @cat    Plugins/Form
   * @type   jQuery
   */
  $.fn.ajaxFormUnbind = function() {
      this.unbind('submit.form-plugin');
      return this.each(function() {
          $(":submit,input:image", this).unbind('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.
   *
   * The semantic argument can be used to force form serialization in semantic order.
   * This is normally true anyway, unless the form contains input elements of type='image'.
   * If your form must be submitted with name/value pairs in semantic order and your form
   * contains an input of type='image" then pass true for this arg, otherwise pass false
   * (or nothing) to avoid the overhead for this logic.
   *
   * @example var data = $("#myForm").formToArray();
   * $.post( "myscript.cgi", data );
   * @desc Collect all the data from a form and submit it to the server.
   *
   * @name formToArray
   * @param semantic true if serialization must maintain strict semantic ordering of elements (slower)
   * @type Array<Object>
   * @cat Plugins/Form
   */
  $.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;
      for(var i=0, max=els.length; i < max; i++) {
          var el = els[i];
          var 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+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
              continue;
          }
  
          var v = $.fieldValue(el, true);
          if (v && v.constructor == Array) {
              for(var 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 them here
          var inputs = form.getElementsByTagName("input");
          for(var i=0, max=inputs.length; i < max; i++) {
              var input = inputs[i];
              var n = input.name;
              if(n && !input.disabled && input.type == "image" && form.clk == input)
                  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
   *
   * The semantic argument can be used to force form serialization in semantic order.
   * If your form must be submitted with name/value pairs in semantic order then pass
   * true for this arg, otherwise pass false (or nothing) to avoid the overhead for
   * this logic (which can be significant for very large forms).
   *
   * @example var data = $("#myForm").formSerialize();
   * $.ajax('POST', "myscript.cgi", data);
   * @desc Collect all the data from a form into a single string
   *
   * @name formSerialize
   * @param semantic true if serialization must maintain strict semantic ordering of elements (slower)
   * @type String
   * @cat Plugins/Form
   */
  $.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
   *
   * The successful argument controls whether or not serialization is limited to
   * 'successful' controls (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
   * The default value of the successful argument is true.
   *
   * @example var data = $("input").fieldSerialize();
   * @desc Collect the data from all successful input elements into a query string
   *
   * @example var data = $(":radio").fieldSerialize();
   * @desc Collect the data from all successful radio input elements into a query string
   *
   * @example var data = $("#myForm :checkbox").fieldSerialize();
   * @desc Collect the data from all successful checkbox input elements in myForm into a query string
   *
   * @example var data = $("#myForm :checkbox").fieldSerialize(false);
   * @desc Collect the data from all checkbox elements in myForm (even the unchecked ones) into a query string
   *
   * @example var data = $(":input").fieldSerialize();
   * @desc Collect the data from all successful input, select, textarea and button elements into a query string
   *
   * @name fieldSerialize
   * @param successful true if only successful controls should be serialized (default is true)
   * @type String
   * @cat Plugins/Form
   */
  $.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.
   *
   * @example var data = $("#myPasswordElement").fieldValue();
   * alert(data[0]);
   * @desc Alerts the current value of the myPasswordElement element
   *
   * @example var data = $("#myForm :input").fieldValue();
   * @desc Get the value(s) of the form elements in myForm
   *
   * @example var data = $("#myForm :checkbox").fieldValue();
   * @desc Get the value(s) for the successful checkbox element(s) in the jQuery object.
   *
   * @example var data = $("#mySingleSelect").fieldValue();
   * @desc Get the value(s) of the select control
   *
   * @example var data = $(':text').fieldValue();
   * @desc Get the value(s) of the text input or textarea elements
   *
   * @example var data = $("#myMultiSelect").fieldValue();
   * @desc Get the values for the select-multiple control
   *
   * @name fieldValue
   * @param Boolean successful true if only the values for successful controls should be returned (default is true)
   * @type Array<String>
   * @cat Plugins/Form
   */
  $.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.
   *
   * 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 the given element is not
   * successful and the successful arg is not false then the returned value will be null.
   *
   * Note: If the successful flag is true (default) but the element is not successful, the return will be null
   * Note: The value returned for a successful select-multiple element will always be an array.
   * Note: If the element has no value the return value will be undefined.
   *
   * @example var data = jQuery.fieldValue($("#myPasswordElement")[0]);
   * @desc Gets the current value of the myPasswordElement element
   *
   * @name fieldValue
   * @param Element el The DOM element for which the value will be returned
   * @param Boolean successful true if value returned must be for a successful controls (default is true)
   * @type String or Array<String> or null or undefined
   * @cat Plugins/Form
   */
  $.fieldValue = function(el, successful) {
      var n = el.name, t = el.type, tag = el.tagName.toLowerCase();
      if (typeof 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) {
                  // extra pain for IE...
                  var v = $.browser.msie && !(op.attributes['value'].specified) ? op.text : op.value;
                  if (one) return v;
                  a.push(v);
              }
          }
          return a;
      }
      return el.value;
  };
  
  
  /**
   * 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
   *
   * @example $('form').clearForm();
   * @desc Clears all forms on the page.
   *
   * @name clearForm
   * @type jQuery
   * @cat Plugins/Form
   */
  $.fn.clearForm = function() {
      return this.each(function() {
          $('input,select,textarea', this).clearFields();
      });
  };
  
  /**
   * Clears the selected form elements.  Takes the following actions on the matched elements:
   *  - 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
   *
   * @example $('.myInputs').clearFields();
   * @desc Clears all inputs with class myInputs
   *
   * @name clearFields
   * @type jQuery
   * @cat Plugins/Form
   */
  $.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.
   *
   * @example $('form').resetForm();
   * @desc Resets all forms on the page.
   *
   * @name resetForm
   * @type jQuery
   * @cat Plugins/Form
   */
  $.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.
   *
   * @example $(':radio').enabled(false);
   * @desc Disables all radio buttons
   *
   * @name select
   * @type jQuery
   * @cat Plugins/Form
   */
  $.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.
   *
   * @example $(':checkbox').select();
   * @desc Checks all checkboxes
   *
   * @name select
   * @type jQuery
   * @cat Plugins/Form
   */
  $.fn.select = 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').select(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 && window.console && window.console.log)
          window.console.log('[jquery.form] ' + Array.prototype.join.call(arguments,''));
  };
  
  })(jQuery);
  