-/*\r
- * jQuery form plugin\r
- * @requires jQuery v1.0.3\r
- *\r
- * Dual licensed under the MIT and GPL licenses:\r
- * http://www.opensource.org/licenses/mit-license.php\r
- * http://www.gnu.org/licenses/gpl.html\r
- *\r
- * Revision: $Id$\r
- * Version: 0.9\r
- */\r
-\r
-/**\r
- * ajaxSubmit() provides a mechanism for submitting an HTML form using AJAX.\r
- *\r
- * ajaxSubmit accepts a single argument which can be either a success callback function\r
- * or an options Object. If a function is provided it will be invoked upon successful\r
- * completion of the submit and will be passed the response from the server.\r
- * If an options Object is provided, the following attributes are supported:\r
- *\r
- * target: Identifies the element(s) in the page to be updated with the server response.\r
- * This value may be specified as a jQuery selection string, a jQuery object,\r
- * or a DOM element.\r
- * default value: null\r
- *\r
- * url: URL to which the form data will be submitted.\r
- * default value: value of form's 'action' attribute\r
- *\r
- * method: @deprecated use 'type'\r
- * type: The method in which the form data should be submitted, 'GET' or 'POST'.\r
- * default value: value of form's 'method' attribute (or 'GET' if none found)\r
- *\r
- * before: @deprecated use 'beforeSubmit'\r
- * beforeSubmit: Callback method to be invoked before the form is submitted.\r
- * default value: null\r
- *\r
- * after: @deprecated use 'success'\r
- * success: Callback method to be invoked after the form has been successfully submitted\r
- * and the response has been returned from the server\r
- * default value: null\r
- *\r
- * dataType: Expected dataType of the response. One of: null, 'xml', 'script', or 'json'\r
- * default value: null\r
- *\r
- * semantic: Boolean flag indicating whether data must be submitted in semantic order (slower).\r
- * default value: false\r
- *\r
- * resetForm: Boolean flag indicating whether the form should be reset if the submit is successful\r
- *\r
- * clearForm: Boolean flag indicating whether the form should be cleared if the submit is successful\r
- *\r
- *\r
- * The 'beforeSubmit' callback can be provided as a hook for running pre-submit logic or for\r
- * validating the form data. If the 'beforeSubmit' callback returns false then the form will\r
- * not be submitted. The 'beforeSubmit' callback is invoked with three arguments: the form data\r
- * in array format, the jQuery object, and the options object passed into ajaxSubmit.\r
- * The form data array takes the following form:\r
- *\r
- * [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]\r
- *\r
- * If a 'success' callback method is provided it is invoked after the response has been returned\r
- * from the server. It is passed the responseText or responseXML value (depending on dataType).\r
- * See jQuery.ajax for further details.\r
- *\r
- *\r
- * The dataType option provides a means for specifying how the server response should be handled.\r
- * This maps directly to the jQuery.httpData method. The following values are supported:\r
- *\r
- * 'xml': if dataType == 'xml' the server response is treated as XML and the 'after'\r
- * callback method, if specified, will be passed the responseXML value\r
- * 'json': if dataType == 'json' the server response will be evaluted and passed to\r
- * the 'after' callback, if specified\r
- * 'script': if dataType == 'script' the server response is evaluated in the global context\r
- *\r
- *\r
- * Note that it does not make sense to use both the 'target' and 'dataType' options. If both\r
- * are provided the target will be ignored.\r
- *\r
- * The semantic argument can be used to force form serialization in semantic order.\r
- * This is normally true anyway, unless the form contains input elements of type='image'.\r
- * If your form must be submitted with name/value pairs in semantic order and your form\r
- * contains an input of type='image" then pass true for this arg, otherwise pass false\r
- * (or nothing) to avoid the overhead for this logic.\r
- *\r
- *\r
- * When used on its own, ajaxSubmit() is typically bound to a form's submit event like this:\r
- *\r
- * $("#form-id").submit(function() {\r
- * $(this).ajaxSubmit(options);\r
- * return false; // cancel conventional submit\r
- * });\r
- *\r
- * When using ajaxForm(), however, this is done for you.\r
- *\r
- * @example\r
- * $('#myForm').ajaxSubmit(function(data) {\r
- * alert('Form submit succeeded! Server returned: ' + data);\r
- * });\r
- * @desc Submit form and alert server response\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * target: '#myTargetDiv'\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc Submit form and update page element with server response\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * success: function(responseText) {\r
- * alert(responseText);\r
- * }\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc Submit form and alert the server response\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * beforeSubmit: function(formArray, jqForm) {\r
- * if (formArray.length == 0) {\r
- * alert('Please enter data.');\r
- * return false;\r
- * }\r
- * }\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc Pre-submit validation which aborts the submit operation if form data is empty\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * url: myJsonUrl.php,\r
- * dataType: 'json',\r
- * success: function(data) {\r
- * // 'data' is an object representing the the evaluated json data\r
- * }\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc json data returned and evaluated\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * url: myXmlUrl.php,\r
- * dataType: 'xml',\r
- * success: function(responseXML) {\r
- * // responseXML is XML document object\r
- * var data = $('myElement', responseXML).text();\r
- * }\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc XML data returned from server\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * resetForm: true\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc submit form and reset it if successful\r
- *\r
- * @example\r
- * $('#myForm).submit(function() {\r
- * $(this).ajaxSubmit();\r
- * return false;\r
- * });\r
- * @desc Bind form's submit event to use ajaxSubmit\r
- *\r
- *\r
- * @name ajaxSubmit\r
- * @type jQuery\r
- * @param options object literal containing options which control the form submission process\r
- * @cat Plugins/Form\r
- * @return jQuery\r
- * @see formToArray\r
- * @see ajaxForm\r
- * @see $.ajax\r
- * @author jQuery Community\r
- */\r
-jQuery.fn.ajaxSubmit = function(options) {\r
- if (typeof options == 'function')\r
- options = { success: options };\r
-\r
- options = jQuery.extend({\r
- url: this.attr('action') || '',\r
- method: this.attr('method') || 'GET'\r
- }, options || {});\r
-\r
- // remap deprecated options (temporarily)\r
- options.success = options.success || options.after;\r
- options.beforeSubmit = options.beforeSubmit || options.before;\r
- options.type = options.type || options.method;\r
-\r
- var a = this.formToArray(options.semantic);\r
-\r
- // give pre-submit callback an opportunity to abort the submit\r
- if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) return this;\r
-\r
- var q = jQuery.param(a);\r
-\r
- if (options.type.toUpperCase() == 'GET') {\r
- // if url already has a '?' then append args after '&'\r
- options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;\r
- options.data = null; // data is null for 'get'\r
- }\r
- else\r
- options.data = q; // data is the query string for 'post'\r
-\r
- var $form = this, callbacks = [];\r
- if (options.resetForm) callbacks.push(function() { $form.resetForm(); });\r
- if (options.clearForm) callbacks.push(function() { $form.clearForm(); });\r
-\r
- // perform a load on the target only if dataType is not provided\r
- if (!options.dataType && options.target) {\r
- var oldSuccess = options.success || function(){};\r
- callbacks.push(function(data, status) {\r
- jQuery(options.target).attr("innerHTML", data).evalScripts().each(oldSuccess, [data, status]);\r
- });\r
- }\r
- else if (options.success)\r
- callbacks.push(options.success);\r
-\r
- options.success = function(data, status) {\r
- for (var i=0, max=callbacks.length; i < max; i++)\r
- callbacks[i](data, status);\r
- };\r
-\r
- jQuery.ajax(options);\r
- return this;\r
-};\r
-\r
-/**\r
- * ajaxForm() provides a mechanism for fully automating form submission.\r
- *\r
- * The advantages of using this method instead of ajaxSubmit() are:\r
- *\r
- * 1: This method will include coordinates for <input type="image" /> elements (if the element\r
- * is used to submit the form).\r
- * 2. This method will include the submit element's name/value data (for the element that was\r
- * used to submit the form).\r
- * 3. This method binds the submit() method to the form for you.\r
- *\r
- * Note that for accurate x/y coordinates of image submit elements in all browsers\r
- * you need to also use the "dimensions" plugin (this method will auto-detect its presence).\r
- *\r
- * The options argument for ajaxForm works exactly as it does for ajaxSubmit. ajaxForm merely\r
- * passes the options argument along after properly binding events for submit elements and\r
- * the form itself. See ajaxSubmit for a full description of the options argument.\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * target: '#myTargetDiv'\r
- * };\r
- * $('#myForm').ajaxSForm(options);\r
- * @desc Bind form's submit event so that 'myTargetDiv' is updated with the server response\r
- * when the form is submitted.\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * success: function(responseText) {\r
- * alert(responseText);\r
- * }\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc Bind form's submit event so that server response is alerted after the form is submitted.\r
- *\r
- *\r
- * @example\r
- * var options = {\r
- * beforeSubmit: function(formArray, jqForm) {\r
- * if (formArray.length == 0) {\r
- * alert('Please enter data.');\r
- * return false;\r
- * }\r
- * }\r
- * };\r
- * $('#myForm').ajaxSubmit(options);\r
- * @desc Bind form's submit event so that pre-submit callback is invoked before the form\r
- * is submitted.\r
- *\r
- *\r
- * @name ajaxForm\r
- * @param options object literal containing options which control the form submission process\r
- * @return jQuery\r
- * @cat Plugins/Form\r
- * @type jQuery\r
- * @see ajaxSubmit\r
- * @author jQuery Community\r
- */\r
-jQuery.fn.ajaxForm = function(options) {\r
- return this.each(function() {\r
- jQuery("input:submit,input:image,button:submit", this).click(function(ev) {\r
- var $form = this.form;\r
- $form.clk = this;\r
- if (this.type == 'image') {\r
- if (ev.offsetX != undefined) {\r
- $form.clk_x = ev.offsetX;\r
- $form.clk_y = ev.offsetY;\r
- } else if (typeof jQuery.fn.offset == 'function') { // try to use dimensions plugin\r
- var offset = jQuery(this).offset();\r
- $form.clk_x = ev.pageX - offset.left;\r
- $form.clk_y = ev.pageY - offset.top;\r
- } else {\r
- $form.clk_x = ev.pageX - this.offsetLeft;\r
- $form.clk_y = ev.pageY - this.offsetTop;\r
- }\r
- }\r
- // clear form vars\r
- setTimeout(function() {\r
- $form.clk = $form.clk_x = $form.clk_y = null;\r
- }, 10);\r
- })\r
- }).submit(function(e) {\r
- jQuery(this).ajaxSubmit(options);\r
- return false;\r
- });\r
-};\r
-\r
-\r
-/**\r
- * formToArray() gathers form element data into an array of objects that can\r
- * be passed to any of the following ajax functions: $.get, $.post, or load.\r
- * Each object in the array has both a 'name' and 'value' property. An example of\r
- * an array for a simple login form might be:\r
- *\r
- * [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]\r
- *\r
- * It is this array that is passed to pre-submit callback functions provided to the\r
- * ajaxSubmit() and ajaxForm() methods.\r
- *\r
- * The semantic argument can be used to force form serialization in semantic order.\r
- * This is normally true anyway, unless the form contains input elements of type='image'.\r
- * If your form must be submitted with name/value pairs in semantic order and your form\r
- * contains an input of type='image" then pass true for this arg, otherwise pass false\r
- * (or nothing) to avoid the overhead for this logic.\r
- *\r
- * @example var data = $("#myForm").formToArray();\r
- * $.post( "myscript.cgi", data );\r
- * @desc Collect all the data from a form and submit it to the server.\r
- *\r
- * @name formToArray\r
- * @param semantic true if serialization must maintain strict semantic ordering of elements (slower)\r
- * @type Array<Object>\r
- * @cat Plugins/Form\r
- * @see ajaxForm\r
- * @see ajaxSubmit\r
- * @author jQuery Community\r
- */\r
-jQuery.fn.formToArray = function(semantic) {\r
- var a = [];\r
- if (this.length == 0) return a;\r
-\r
- var form = this[0];\r
- var els = semantic ? form.getElementsByTagName('*') : form.elements;\r
- if (!els) return a;\r
- for(var i=0, max=els.length; i < max; i++) {\r
- var el = els[i];\r
- var n = el.name;\r
- if (!n) continue;\r
-\r
- if (semantic && form.clk && el.type == "image") {\r
- // handle image inputs on the fly when semantic == true\r
- if(!el.disabled && form.clk == el)\r
- a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});\r
- continue;\r
- }\r
- var v = jQuery.fieldValue(el, true);\r
- if (v === null) continue;\r
- if (v.constructor == Array) {\r
- for(var j=0, jmax=v.length; j < jmax; j++)\r
- a.push({name: n, value: v[j]});\r
- }\r
- else\r
- a.push({name: n, value: v});\r
- }\r
-\r
- if (!semantic && form.clk) {\r
- // input type=='image' are not found in elements array! handle them here\r
- var inputs = form.getElementsByTagName("input");\r
- for(var i=0, max=inputs.length; i < max; i++) {\r
- var input = inputs[i];\r
- var n = input.name;\r
- if(n && !input.disabled && input.type == "image" && form.clk == input)\r
- a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});\r
- }\r
- }\r
- return a;\r
-};\r
-\r
-\r
-/**\r
- * Serializes form data into a 'submittable' string. This method will return a string\r
- * in the format: name1=value1&name2=value2\r
- *\r
- * The semantic argument can be used to force form serialization in semantic order.\r
- * If your form must be submitted with name/value pairs in semantic order then pass\r
- * true for this arg, otherwise pass false (or nothing) to avoid the overhead for\r
- * this logic (which can be significant for very large forms).\r
- *\r
- * @example var data = $("#myForm").formSerialize();\r
- * $.ajax('POST', "myscript.cgi", data);\r
- * @desc Collect all the data from a form into a single string\r
- *\r
- * @name formSerialize\r
- * @param semantic true if serialization must maintain strict semantic ordering of elements (slower)\r
- * @type String\r
- * @cat Plugins/Form\r
- * @see formToArray\r
- * @author jQuery Community\r
- */\r
-jQuery.fn.formSerialize = function(semantic) {\r
- //hand off to jQuery.param for proper encoding\r
- return jQuery.param(this.formToArray(semantic));\r
-};\r
-\r
-\r
-/**\r
- * Serializes all field elements in the jQuery object into a query string.\r
- * This method will return a string in the format: name1=value1&name2=value2\r
- *\r
- * The successful argument controls whether or not serialization is limited to\r
- * 'successful' controls (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).\r
- * The default value of the successful argument is true.\r
- *\r
- * @example var data = $("input").formSerialize();\r
- * @desc Collect the data from all successful input elements into a query string\r
- *\r
- * @example var data = $(":radio").formSerialize();\r
- * @desc Collect the data from all successful radio input elements into a query string\r
- *\r
- * @example var data = $("#myForm :checkbox").formSerialize();\r
- * @desc Collect the data from all successful checkbox input elements in myForm into a query string\r
- *\r
- * @example var data = $("#myForm :checkbox").formSerialize(false);\r
- * @desc Collect the data from all checkbox elements in myForm (even the unchecked ones) into a query string\r
- *\r
- * @example var data = $(":input").formSerialize();\r
- * @desc Collect the data from all successful input, select, textarea and button elements into a query string\r
- *\r
- * @name fieldSerialize\r
- * @param successful true if only successful controls should be serialized (default is true)\r
- * @type String\r
- * @cat Plugins/Form\r
- */\r
-jQuery.fn.fieldSerialize = function(successful) {\r
- var a = [];\r
- this.each(function() {\r
- var n = this.name;\r
- if (!n) return;\r
- var v = jQuery.fieldValue(this, successful);\r
- if (v && v.constructor == Array) {\r
- for (var i=0,max=v.length; i < max; i++)\r
- a.push({name: n, value: v[i]});\r
- }\r
- else if (v !== null && typeof v != 'undefined')\r
- a.push({name: this.name, value: v});\r
- });\r
- //hand off to jQuery.param for proper encoding\r
- return jQuery.param(a);\r
-};\r
-\r
-\r
-/**\r
- * Returns the value of the field element in the jQuery object. If there is more than one field element\r
- * in the jQuery object the value of the first successful one is returned.\r
- *\r
- * The successful argument controls whether or not the field element must be 'successful'\r
- * (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).\r
- * The default value of the successful argument is true. If this value is false then\r
- * the value of the first field element in the jQuery object is returned.\r
- *\r
- * Note: If no valid value can be determined the return value will be undifined.\r
- *\r
- * Note: The fieldValue returned for a select-multiple element or for a checkbox input will\r
- * always be an array if it is not undefined.\r
- *\r
- *\r
- * @example var data = $("#myPasswordElement").formValue();\r
- * @desc Gets the current value of the myPasswordElement element\r
- *\r
- * @example var data = $("#myForm :input").formValue();\r
- * @desc Get the value of the first successful control in the jQuery object.\r
- *\r
- * @example var data = $("#myForm :checkbox").formValue();\r
- * @desc Get the array of values for the first set of successful checkbox controls in the jQuery object.\r
- *\r
- * @example var data = $("#mySingleSelect").formValue();\r
- * @desc Get the value of the select control\r
- *\r
- * @example var data = $("#myMultiSelect").formValue();\r
- * @desc Get the array of selected values for the select-multiple control\r
- *\r
- * @name fieldValue\r
- * @param Boolean successful true if value returned must be for a successful controls (default is true)\r
- * @type String or Array<String>\r
- * @cat Plugins/Form\r
- */\r
-jQuery.fn.fieldValue = function(successful) {\r
- var cbVal, cbName;\r
-\r
- // loop until we find a value\r
- for (var i=0, max=this.length; i < max; i++) {\r
- var el = this[i];\r
- var v = jQuery.fieldValue(el, successful);\r
- if (v === null || typeof v == 'undefined' || (v.constructor == Array && !v.length))\r
- continue;\r
-\r
- // for checkboxes, consider multiple elements, for everything else just return first valid value\r
- if (el.type != 'checkbox') return v;\r
-\r
- cbName = cbName || el.name;\r
- if (cbName != el.name) // return if we hit a checkbox with a different name\r
- return cbVal;\r
- cbVal = cbVal || [];\r
- cbVal.push(v);\r
- }\r
- return cbVal;\r
-};\r
-\r
-/**\r
- * Returns the value of the field element.\r
- *\r
- * The successful argument controls whether or not the field element must be 'successful'\r
- * (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).\r
- * The default value of the successful argument is true. If the given element is not\r
- * successful and the successful arg is not false then the returned value will be null.\r
- *\r
- * Note: The fieldValue returned for a select-multiple element will always be an array.\r
- *\r
- * @example var data = jQuery.fieldValue($("#myPasswordElement")[0]);\r
- * @desc Gets the current value of the myPasswordElement element\r
- *\r
- * @name fieldValue\r
- * @param Element el The DOM element for which the value will be returned\r
- * @param Boolean successful true if value returned must be for a successful controls (default is true)\r
- * @type String or Array<String>\r
- * @cat Plugins/Form\r
- */\r
-jQuery.fieldValue = function(el, successful) {\r
- var n = el.name, t = el.type, tag = el.tagName.toLowerCase();\r
- if (typeof successful == 'undefined') successful = true;\r
-\r
- if (successful && ( !n || el.disabled || t == 'reset' ||\r
- (t == 'checkbox' || t == 'radio') && !el.checked ||\r
- (t == 'submit' || t == 'image') && el.form && el.form.clk != el ||\r
- tag == 'select' && el.selectedIndex == -1))\r
- return null;\r
-\r
- if (tag == 'select') {\r
- var index = el.selectedIndex;\r
- if (index < 0) return null;\r
- var a = [], ops = el.options;\r
- var one = (t == 'select-one');\r
- var max = (one ? index+1 : ops.length);\r
- for(var i=(one ? index : 0); i < max; i++) {\r
- var op = ops[i];\r
- if (op.selected) {\r
- // extra pain for IE...\r
- var v = jQuery.browser.msie && !(op.attributes['value'].specified) ? op.text : op.value;\r
- if (one) return v;\r
- a.push(v);\r
- }\r
- }\r
- return a;\r
- }\r
- return el.value;\r
-};\r
-\r
-\r
-/**\r
- * Clears the form data. Takes the following actions on the form's input fields:\r
- * - input text fields will have their 'value' property set to the empty string\r
- * - select elements will have their 'selectedIndex' property set to -1\r
- * - checkbox and radio inputs will have their 'checked' property set to false\r
- * - inputs of type submit, button, reset, and hidden will *not* be effected\r
- * - button elements will *not* be effected\r
- *\r
- * @example $('form').clearForm();\r
- * @desc Clears all forms on the page.\r
- *\r
- * @name clearForm\r
- * @type jQuery\r
- * @cat Plugins/Form\r
- * @see resetForm\r
- */\r
-jQuery.fn.clearForm = function() {\r
- return this.each(function() {\r
- jQuery('input,select,textarea', this).clearFields();\r
- });\r
-};\r
-\r
-/**\r
- * Clears the selected form elements. Takes the following actions on the matched elements:\r
- * - input text fields will have their 'value' property set to the empty string\r
- * - select elements will have their 'selectedIndex' property set to -1\r
- * - checkbox and radio inputs will have their 'checked' property set to false\r
- * - inputs of type submit, button, reset, and hidden will *not* be effected\r
- * - button elements will *not* be effected\r
- *\r
- * @example $('.myInputs').clearFields();\r
- * @desc Clears all inputs with class myInputs\r
- *\r
- * @name clearFields\r
- * @type jQuery\r
- * @cat Plugins/Form\r
- * @see clearForm\r
- */\r
-jQuery.fn.clearFields = jQuery.fn.clearInputs = function() {\r
- return this.each(function() {\r
- var t = this.type, tag = this.tagName.toLowerCase();\r
- if (t == 'text' || t == 'password' || tag == 'textarea')\r
- this.value = '';\r
- else if (t == 'checkbox' || t == 'radio')\r
- this.checked = false;\r
- else if (tag == 'select')\r
- this.selectedIndex = -1;\r
- });\r
-};\r
-\r
-\r
-/**\r
- * Resets the form data. Causes all form elements to be reset to their original value.\r
- *\r
- * @example $('form').resetForm();\r
- * @desc Resets all forms on the page.\r
- *\r
- * @name resetForm\r
- * @type jQuery\r
- * @cat Plugins/Form\r
- * @see clearForm\r
- */\r
-jQuery.fn.resetForm = function() {\r
- return this.each(function() {\r
- // guard against an input with the name of 'reset'\r
- // note that IE reports the reset function as an 'object'\r
- if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType))\r
- this.reset();\r
- });\r
-};\r
+/*
+ * jQuery Form Plugin
+ * version: 2.02 (12/16/2007)
+ * @requires jQuery v1.1 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) {
+ 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 = {};
+ $.event.trigger('form.pre.serialize', [this, options, veto]);
+ if (veto.veto) return this;
+
+ var a = this.formToArray(options.semantic);
+ if (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) return this;
+
+ // fire vetoable 'validate' event
+ $.event.trigger('form.submit.validate', [a, this, options, veto]);
+ if (veto.veto) return this;
+
+ var q = $.param(a);//.replace(/%20/g,'+');
+
+ 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) {
+ if (this.evalScripts)
+ $(options.target).attr("innerHTML", data).evalScripts().each(oldSuccess, arguments);
+ else // jQuery v1.1.4
+ $(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
+ $.event.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' + $.fn.ajaxSubmit.counter++;
+ 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 encAttr = form.encoding ? 'encoding' : 'enctype';
+ var t = $form.attr('target');
+ $form.attr({
+ target: id,
+ method: 'POST',
+ action: opts.url
+ });
+ form[encAttr] = 'multipart/form-data';
+
+ // support timout
+ if (opts.timeout)
+ setTimeout(function() { timedOut = true; cb(); }, opts.timeout);
+
+ // add iframe to doc and submit the form
+ $io.appendTo('body');
+ io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
+ form.submit();
+ $form.attr('target', t); // reset target
+ }, 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;
+
+ if (opts.dataType == 'json' || opts.dataType == 'script') {
+ var ta = doc.getElementsByTagName('textarea')[0];
+ data = ta ? ta.value : xhr.responseText;
+ if (opts.dataType == 'json')
+ eval("data = " + data);
+ else
+ $.globalEval(data);
+ }
+ else if (opts.dataType == 'xml') {
+ data = xhr.responseXML;
+ if (!data && xhr.responseText != null)
+ data = toXml(xhr.responseText);
+ }
+ else {
+ data = xhr.responseText;
+ }
+ }
+ 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() {
+ $io.remove();
+ xhr.responseXML = null;
+ }, 100);
+ };
+
+ function toXml(s, doc) {
+ if (window.ActiveXObject) {
+ doc = new ActiveXObject('Microsoft.XMLDOM');
+ doc.async = 'false';
+ doc.loadXML(s);
+ }
+ else
+ doc = (new DOMParser()).parseFromString(s, 'text/xml');
+ return (doc && doc.documentElement && doc.documentElement.tagName != 'parsererror') ? doc : null;
+ };
+ };
+};
+$.fn.ajaxSubmit.counter = 0; // used to create unique iframe ids
+
+/**
+ * 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().submit(submitHandler).each(function() {
+ // store options in hash
+ this.formPluginId = $.fn.ajaxForm.counter++;
+ $.fn.ajaxForm.optionHash[this.formPluginId] = options;
+ $(":submit,input:image", this).click(clickHandler);
+ });
+};
+
+$.fn.ajaxForm.counter = 1;
+$.fn.ajaxForm.optionHash = {};
+
+function clickHandler(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);
+};
+
+function submitHandler() {
+ // retrieve options from hash
+ var id = this.formPluginId;
+ var options = $.fn.ajaxForm.optionHash[id];
+ $(this).ajaxSubmit(options);
+ return false;
+};
+
+/**
+ * ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
+ *
+ * @name ajaxFormUnbind
+ * @return jQuery
+ * @cat Plugins/Form
+ * @type jQuery
+ */
+$.fn.ajaxFormUnbind = function() {
+ this.unbind('submit', submitHandler);
+ return this.each(function() {
+ $(":submit,input:image", this).unbind('click', clickHandler);
+ });
+
+};
+
+/**
+ * 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&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&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").formSerialize();
+ * @desc Collect the data from all successful input elements into a query string
+ *
+ * @example var data = $(":radio").formSerialize();
+ * @desc Collect the data from all successful radio input elements into a query string
+ *
+ * @example var data = $("#myForm :checkbox").formSerialize();
+ * @desc Collect the data from all successful checkbox input elements in myForm into a query string
+ *
+ * @example var data = $("#myForm :checkbox").formSerialize(false);
+ * @desc Collect the data from all checkbox elements in myForm (even the unchecked ones) into a query string
+ *
+ * @example var data = $(":input").formSerialize();
+ * @desc Collect the data from all successful input, select, textarea and button elements into a query string
+ *
+ * @name fieldSerialize
+ * @param successful true if only successful controls should be serialized (default is true)
+ * @type String
+ * @cat Plugins/Form
+ */
+$.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 $(':checkbox').selected();
+ * @desc Checks all checkboxes
+ *
+ * @name select
+ * @type jQuery
+ * @cat Plugins/Form
+ */
+$.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;
+ }
+ });
+};
+
+})(jQuery);
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