Subversion Repositories SmartDukaan

/*

 * jQuery validation plug-in pre-1.5.2

 *

 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/

 * http://docs.jquery.com/Plugins/Validation

 *

 * Copyright (c) 2006 - 2008 Jörn Zaefferer

 *

 * $Id: jquery.validate.js 6243 2009-02-19 11:40:49Z joern.zaefferer $

 *

 * Dual licensed under the MIT and GPL licenses:

 *   http://www.opensource.org/licenses/mit-license.php

 *   http://www.gnu.org/licenses/gpl.html

 */

(function($) {

  $.extend($.fn, {

    // http://docs.jquery.com/Plugins/Validation/validate

    validate: function( options ) {

      // if nothing is selected, return nothing; can't chain anyway

      if (!this.length) {

        options && options.debug && window.console && console.warn( "nothing selected, can't validate, returning nothing" );

        return;

      }

      // check if a validator for this form was already created

      var validator = $.data(this[0], 'validator');

      if ( validator ) {

        return validator;

      }

      validator = new $.validator( options, this[0] );

      $.data(this[0], 'validator', validator);

      if ( validator.settings.onsubmit ) {

        // allow suppresing validation by adding a cancel class to the submit button

        this.find("input, button").filter(".cancel").click(function() {

          validator.cancelSubmit = true;

        });

        // validate the form on submit

        this.submit( function( event ) {

          if ( validator.settings.debug )

            // prevent form submit to be able to see console output

            event.preventDefault();

          function handle() {

            if ( validator.settings.submitHandler ) {

              validator.settings.submitHandler.call( validator, validator.currentForm );

              return false;

            }

            return true;

          }

          // prevent submit for invalid forms or custom submit handlers

          if ( validator.cancelSubmit ) {

            validator.cancelSubmit = false;

            return handle();

          }

          if ( validator.form() ) {

            if ( validator.pendingRequest ) {

              validator.formSubmitted = true;

              return false;

            }

            return handle();

          } else {

            validator.focusInvalid();

            return false;

          }

        });

      }

      return validator;

    },

    // http://docs.jquery.com/Plugins/Validation/valid

    valid: function() {

      if ( $(this[0]).is('form')) {

        return this.validate().form();

      } else {

        var valid = false;

        var validator = $(this[0].form).validate();

        this.each(function() {

          valid |= validator.element(this);

        });

        return valid;

      }

    },

    // attributes: space seperated list of attributes to retrieve and remove

    removeAttrs: function(attributes) {

      var result = {},

      $element = this;

      $.each(attributes.split(/\s/), function(index, value) {

        result[value] = $element.attr(value);

        $element.removeAttr(value);

      });

      return result;

    },

    // http://docs.jquery.com/Plugins/Validation/rules

    rules: function(command, argument) {

      var element = this[0];

      if (command) {

        var settings = $.data(element.form, 'validator').settings;

        var staticRules = settings.rules;

        var existingRules = $.validator.staticRules(element);

        switch(command) {

          case "add":

            $.extend(existingRules, $.validator.normalizeRule(argument));

            staticRules[element.name] = existingRules;

            if (argument.messages)

              settings.messages[element.name] = $.extend( settings.messages[element.name], argument.messages );

            break;

          case "remove":

            if (!argument) {

              delete staticRules[element.name];

              return existingRules;

            }

            var filtered = {};

            $.each(argument.split(/\s/), function(index, method) {

              filtered[method] = existingRules[method];

              delete existingRules[method];

            });

            return filtered;

        }

      }

      var data = $.validator.normalizeRules(

        $.extend(

        {},

          $.validator.metadataRules(element),

          $.validator.classRules(element),

          $.validator.attributeRules(element),

          $.validator.staticRules(element)

          ), element);

      // make sure required is at front

      if (data.required) {

        var param = data.required;

        delete data.required;

        data = $.extend({

          required: param

        }, data);

      }

      return data;

    }

  });

  // Custom selectors

  $.extend($.expr[":"], {

    // http://docs.jquery.com/Plugins/Validation/blank

    blank: function(a) {

      return !$.trim(a.value);

    },

    // http://docs.jquery.com/Plugins/Validation/filled

    filled: function(a) {

      return !!$.trim(a.value);

    },

    // http://docs.jquery.com/Plugins/Validation/unchecked

    unchecked: function(a) {

      return !a.checked;

    }

  });

  $.format = function(source, params) {

    if ( arguments.length == 1 )

      return function() {

        var args = $.makeArray(arguments);

        args.unshift(source);

        return $.format.apply( this, args );

      };

    if ( arguments.length > 2 && params.constructor != Array  ) {

      params = $.makeArray(arguments).slice(1);

    }

    if ( params.constructor != Array ) {

      params = [ params ];

    }

    $.each(params, function(i, n) {

      source = source.replace(new RegExp("\\{" + i + "\\}", "g"), n);

    });

    return source;

  };

  // constructor for validator

  $.validator = function( options, form ) {

    this.settings = $.extend( {}, $.validator.defaults, options );

    this.currentForm = form;

    this.init();

  };

  $.extend($.validator, {

    defaults: {

      messages: {},

      groups: {},

      rules: {},

      errorClass: "error",

      errorElement: "label",

      focusInvalid: true,

      errorContainer: $( [] ),

      errorLabelContainer: $( [] ),

      onsubmit: true,

      ignore: [],

      ignoreTitle: false,

      onfocusin: function(element) {

        this.lastActive = element;

        // hide error label and remove error class on focus if enabled

        if ( this.settings.focusCleanup && !this.blockFocusCleanup ) {

          this.settings.unhighlight && this.settings.unhighlight.call( this, element, this.settings.errorClass );

          this.errorsFor(element).hide();

        }

      },

      onfocusout: function(element) {

        if ( !this.checkable(element) && (element.name in this.submitted || !this.optional(element)) ) {

          this.element(element);

        }

      },

      onkeyup: function(element) {

        if ( element.name in this.submitted || element == this.lastElement ) {

          this.element(element);

        }

      },

      onclick: function(element) {

        if ( element.name in this.submitted )

          this.element(element);

      },

      highlight: function( element, errorClass ) {

        $( element ).addClass( errorClass );

      },

      unhighlight: function( element, errorClass ) {

        $( element ).removeClass( errorClass );

      }

    },

    // http://docs.jquery.com/Plugins/Validation/Validator/setDefaults

    setDefaults: function(settings) {

      $.extend( $.validator.defaults, settings );

    },

    messages: {

      required: "This field is required.",

      remote: "Please fix this field.",

      email: "Please enter a valid email address.",

      url: "Please enter a valid URL.",

      date: "Please enter a valid date.",

      dateISO: "Please enter a valid date (ISO).",

      dateDE: "Bitte geben Sie ein gültiges Datum ein.",

      number: "Please enter a valid number.",

      numberDE: "Bitte geben Sie eine Nummer ein.",

      digits: "Please enter only digits",

      creditcard: "Please enter a valid credit card number.",

      equalTo: "Please enter the same value again.",

      accept: "Please enter a value with a valid extension.",

      maxlength: $.format("Please enter no more than {0} characters."),

      minlength: $.format("Please enter at least {0} characters."),

      rangelength: $.format("Please enter a value between {0} and {1} characters long."),

      range: $.format("Please enter a value between {0} and {1}."),

      max: $.format("Please enter a value less than or equal to {0}."),

      min: $.format("Please enter a value greater than or equal to {0}.")

    },

    autoCreateRanges: false,

    prototype: {

      init: function() {

        this.labelContainer = $(this.settings.errorLabelContainer);

        this.errorContext = this.labelContainer.length && this.labelContainer || $(this.currentForm);

        this.containers = $(this.settings.errorContainer).add( this.settings.errorLabelContainer );

        this.submitted = {};

        this.valueCache = {};

        this.pendingRequest = 0;

        this.pending = {};

        this.invalid = {};

        this.reset();

        var groups = (this.groups = {});

        $.each(this.settings.groups, function(key, value) {

          $.each(value.split(/\s/), function(index, name) {

            groups[name] = key;

          });

        });

        var rules = this.settings.rules;

        $.each(rules, function(key, value) {

          rules[key] = $.validator.normalizeRule(value);

        });

        function delegate(event) {

          var validator = $.data(this[0].form, "validator");

          validator.settings["on" + event.type] && validator.settings["on" + event.type].call(validator, this[0] );

        }

        $(this.currentForm)

        .delegate("focusin focusout keyup", ":text, :password, :file, select, textarea", delegate)

        .delegate("click", ":radio, :checkbox", delegate);

        if (this.settings.invalidHandler)

          $(this.currentForm).bind("invalid-form.validate", this.settings.invalidHandler);

      },

      // http://docs.jquery.com/Plugins/Validation/Validator/form

      form: function() {

        this.checkForm();

        $.extend(this.submitted, this.errorMap);

        this.invalid = $.extend({}, this.errorMap);

        if (!this.valid())

          $(this.currentForm).triggerHandler("invalid-form", [this]);

        this.showErrors();

        return this.valid();

      },

      checkForm: function() {

        this.prepareForm();

        for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {

          this.check( elements[i] );

        }

        return this.valid();

      },

      // http://docs.jquery.com/Plugins/Validation/Validator/element

      element: function( element ) {

        element = this.clean( element );

        this.lastElement = element;

        this.prepareElement( element );

        this.currentElements = $(element);

        var result = this.check( element );

        if ( result ) {

          delete this.invalid[element.name];

        } else {

          this.invalid[element.name] = true;

        }

        if ( !this.numberOfInvalids() ) {

          // Hide error containers on last error

          this.toHide = this.toHide.add( this.containers );

        }

        this.showErrors();

        return result;

      },

      // http://docs.jquery.com/Plugins/Validation/Validator/showErrors

      showErrors: function(errors) {

        if(errors) {

          // add items to error list and map

          $.extend( this.errorMap, errors );

          this.errorList = [];

          for ( var name in errors ) {

            this.errorList.push({

              message: errors[name],

              element: this.findByName(name)[0]

            });

          }

          // remove items from success list

          this.successList = $.grep( this.successList, function(element) {

            return !(element.name in errors);

          });

        }

        this.settings.showErrors

        ? this.settings.showErrors.call( this, this.errorMap, this.errorList )

        : this.defaultShowErrors();

      },

      // http://docs.jquery.com/Plugins/Validation/Validator/resetForm

      resetForm: function() {

        if ( $.fn.resetForm )

          $( this.currentForm ).resetForm();

        this.submitted = {};

        this.prepareForm();

        this.hideErrors();

        this.elements().removeClass( this.settings.errorClass );

      },

      numberOfInvalids: function() {

        return this.objectLength(this.invalid);

      },

      objectLength: function( obj ) {

        var count = 0;

        for ( var i in obj )

          count++;

        return count;

      },

      hideErrors: function() {

        this.addWrapper( this.toHide ).hide();

      },

      valid: function() {

        return this.size() == 0;

      },

      size: function() {

        return this.errorList.length;

      },

      focusInvalid: function() {

        if( this.settings.focusInvalid ) {

          try {

            $(this.findLastActive() || this.errorList.length && this.errorList[0].element || []).filter(":visible").focus();

          } catch(e) {

          // ignore IE throwing errors when focusing hidden elements

          }

        }

      },

      findLastActive: function() {

        var lastActive = this.lastActive;

        return lastActive && $.grep(this.errorList, function(n) {

          return n.element.name == lastActive.name;

        }).length == 1 && lastActive;

      },

      elements: function() {

        var validator = this,

        rulesCache = {};

        // select all valid inputs inside the form (no submit or reset buttons)

        // workaround $Query([]).add until http://dev.jquery.com/ticket/2114 is solved

        return $([]).add(this.currentForm.elements)

        .filter(":input")

        .not(":submit, :reset, :image, [disabled]")

        .not( this.settings.ignore )

        .filter(function() {

          !this.name && validator.settings.debug && window.console && console.error( "%o has no name assigned", this);

          // select only the first element for each name, and only those with rules specified

          if ( this.name in rulesCache || !validator.objectLength($(this).rules()) )

            return false;

          rulesCache[this.name] = true;

          return true;

        });

      },

      clean: function( selector ) {

        return $( selector )[0];

      },

      errors: function() {

        return $( this.settings.errorElement + "." + this.settings.errorClass, this.errorContext );

      },

      reset: function() {

        this.successList = [];

        this.errorList = [];

        this.errorMap = {};

        this.toShow = $([]);

        this.toHide = $([]);

        this.formSubmitted = false;

        this.currentElements = $([]);

      },

      prepareForm: function() {

        this.reset();

        this.toHide = this.errors().add( this.containers );

      },

      prepareElement: function( element ) {

        this.reset();

        this.toHide = this.errorsFor(element);

      },

      check: function( element ) {

        element = this.clean( element );

        // if radio/checkbox, validate first element in group instead

        if (this.checkable(element)) {

          element = this.findByName( element.name )[0];

        }

        var rules = $(element).rules();

        var dependencyMismatch = false;

        for( method in rules ) {

          var rule = {

            method: method,

            parameters: rules[method]

          };

          try {

            var result = $.validator.methods[method].call( this, element.value.replace(/\r/g, ""), element, rule.parameters );

            // if a method indicates that the field is optional and therefore valid,

            // don't mark it as valid when there are no other rules

            if ( result == "dependency-mismatch" ) {

              dependencyMismatch = true;

              continue;

            }

            dependencyMismatch = false;

            if ( result == "pending" ) {

              this.toHide = this.toHide.not( this.errorsFor(element) );

              return;

            }

            if( !result ) {

              this.formatAndAdd( element, rule );

              return false;

            }

          } catch(e) {

            this.settings.debug && window.console && console.log("exception occured when checking element " + element.id

              + ", check the '" + rule.method + "' method");

            throw e;

          }

        }

        if (dependencyMismatch)

          return;

        if ( this.objectLength(rules) )

          this.successList.push(element);

        return true;

      },

      // return the custom message for the given element and validation method

      // specified in the element's "messages" metadata

      customMetaMessage: function(element, method) {

        if (!$.metadata)

          return;

        var meta = this.settings.meta

        ? $(element).metadata()[this.settings.meta]

        : $(element).metadata();

        return meta && meta.messages && meta.messages[method];

      },

      // return the custom message for the given element name and validation method

      customMessage: function( name, method ) {

        var m = this.settings.messages[name];

        return m && (m.constructor == String

          ? m

          : m[method]);

      },

      // return the first defined argument, allowing empty strings

      findDefined: function() {

        for(var i = 0; i < arguments.length; i++) {

          if (arguments[i] !== undefined)

            return arguments[i];

        }

        return undefined;

      },

      defaultMessage: function( element, method) {

        return this.findDefined(

          this.customMessage( element.name, method ),

          this.customMetaMessage( element, method ),

          // title is never undefined, so handle empty string as undefined

          !this.settings.ignoreTitle && element.title || undefined,

          $.validator.messages[method],

          "<strong>Warning: No message defined for " + element.name + "</strong>"

          );

      },

      formatAndAdd: function( element, rule ) {

        var message = this.defaultMessage( element, rule.method );

        if ( typeof message == "function" )

          message = message.call(this, rule.parameters, element);

        this.errorList.push({

          message: message,

          element: element

        });

        this.errorMap[element.name] = message;

        this.submitted[element.name] = message;

      },

      addWrapper: function(toToggle) {

        if ( this.settings.wrapper )

          toToggle = toToggle.add( toToggle.parents( this.settings.wrapper ) );

        return toToggle;

      },

      defaultShowErrors: function() {

        for ( var i = 0; this.errorList[i]; i++ ) {

          var error = this.errorList[i];

          this.settings.highlight && this.settings.highlight.call( this, error.element, this.settings.errorClass );

          this.showLabel( error.element, error.message );

        }

        if( this.errorList.length ) {

          this.toShow = this.toShow.add( this.containers );

        }

        if (this.settings.success) {

          for ( var i = 0; this.successList[i]; i++ ) {

            this.showLabel( this.successList[i] );

          }

        }

        if (this.settings.unhighlight) {

          for ( var i = 0, elements = this.validElements(); elements[i]; i++ ) {

            this.settings.unhighlight.call( this, elements[i], this.settings.errorClass );

          }

        }

        this.toHide = this.toHide.not( this.toShow );

        this.hideErrors();

        this.addWrapper( this.toShow ).show();

      },

      validElements: function() {

        return this.currentElements.not(this.invalidElements());

      },

      invalidElements: function() {

        return $(this.errorList).map(function() {

          return this.element;

        });

      },

      showLabel: function(element, message) {

        var label = this.errorsFor( element );

        if ( label.length ) {

          // refresh error/success class

          label.removeClass().addClass( this.settings.errorClass );

          // check if we have a generated label, replace the message then

          label.attr("generated") && label.html(message);

        } else {

          // create label

          label = $("<" + this.settings.errorElement + "/>")

          .attr({

            "for":  this.idOrName(element),

            generated: true

          })

          .addClass(this.settings.errorClass)

          .html(message || "");

          if ( this.settings.wrapper ) {

            // make sure the element is visible, even in IE

            // actually showing the wrapped element is handled elsewhere

            label = label.hide().show().wrap("<" + this.settings.wrapper + "/>").parent();

          }

          if ( !this.labelContainer.append(label).length )

            this.settings.errorPlacement

            ? this.settings.errorPlacement(label, $(element) )

            : label.insertAfter(element);

        }

        if ( !message && this.settings.success ) {

          label.text("");

          typeof this.settings.success == "string"

          ? label.addClass( this.settings.success )

          : this.settings.success( label );

        }

        this.toShow = this.toShow.add(label);

      },

      errorsFor: function(element) {

        return this.errors().filter("[for='" + this.idOrName(element) + "']");

      },

      idOrName: function(element) {

        return this.groups[element.name] || (this.checkable(element) ? element.name : element.id || element.name);

      },

      checkable: function( element ) {

        return /radio|checkbox/i.test(element.type);

      },

      findByName: function( name ) {

        // select by name and filter by form for performance over form.find("[name=...]")

        var form = this.currentForm;

        return $(document.getElementsByName(name)).map(function(index, element) {

          return element.form == form && element.name == name && element  || null;

        });

      },

      getLength: function(value, element) {

        switch( element.nodeName.toLowerCase() ) {

          case 'select':

            return $("option:selected", element).length;

          case 'input':

            if( this.checkable( element) )

              return this.findByName(element.name).filter(':checked').length;

        }

        return value.length;

      },

      depend: function(param, element) {

        return this.dependTypes[typeof param]

        ? this.dependTypes[typeof param](param, element)

        : true;

      },

      dependTypes: {

        "boolean": function(param, element) {

          return param;

        },

        "string": function(param, element) {

          return !!$(param, element.form).length;

        },

        "function": function(param, element) {

          return param(element);

        }

      },

      optional: function(element) {

        return !$.validator.methods.required.call(this, $.trim(element.value), element) && "dependency-mismatch";

      },

      startRequest: function(element) {

        if (!this.pending[element.name]) {

          this.pendingRequest++;

          this.pending[element.name] = true;

        }

      },

      stopRequest: function(element, valid) {

        this.pendingRequest--;

        // sometimes synchronization fails, make sure pendingRequest is never < 0

        if (this.pendingRequest < 0)

          this.pendingRequest = 0;

        delete this.pending[element.name];

        if ( valid && this.pendingRequest == 0 && this.formSubmitted && this.form() ) {

          $(this.currentForm).submit();

        } else if (!valid && this.pendingRequest == 0 && this.formSubmitted) {

          $(this.currentForm).triggerHandler("invalid-form", [this]);

        }

      },

      previousValue: function(element) {

        return $.data(element, "previousValue") || $.data(element, "previousValue", previous = {

          old: null,

          valid: true,

          message: this.defaultMessage( element, "remote" )

        });

      }

    },

    classRuleSettings: {

      required: {

        required: true

      },

      email: {

        email: true

      },

      url: {

        url: true

      },

      date: {

        date: true

      },

      dateISO: {

        dateISO: true

      },

      dateDE: {

        dateDE: true

      },

      number: {

        number: true

      },

      numberDE: {

        numberDE: true

      },

      digits: {

        digits: true

      },

      creditcard: {

        creditcard: true

      }

    },

    addClassRules: function(className, rules) {

      className.constructor == String ?

      this.classRuleSettings[className] = rules :

      $.extend(this.classRuleSettings, className);

    },

    classRules: function(element) {

      var rules = {};

      var classes = $(element).attr('class');

      classes && $.each(classes.split(' '), function() {

        if (this in $.validator.classRuleSettings) {

          $.extend(rules, $.validator.classRuleSettings[this]);

        }

      });

      return rules;

    },

    attributeRules: function(element) {

      var rules = {};

      var $element = $(element);

      for (method in $.validator.methods) {

        var value = $element.attr(method);

        if (value) {

          rules[method] = value;

        }

      }

      // maxlength may be returned as -1, 2147483647 (IE) and 524288 (safari) for text inputs

      if (rules.maxlength && /-1|2147483647|524288/.test(rules.maxlength)) {

        delete rules.maxlength;

      }

      return rules;

    },

    metadataRules: function(element) {

      if (!$.metadata) return {};

      var meta = $.data(element.form, 'validator').settings.meta;

      return meta ?

      $(element).metadata()[meta] :

      $(element).metadata();

    },

    staticRules: function(element) {

      var rules = {};

      var validator = $.data(element.form, 'validator');

      if (validator.settings.rules) {

        rules = $.validator.normalizeRule(validator.settings.rules[element.name]) || {};

      }

      return rules;

    },

    normalizeRules: function(rules, element) {

      // handle dependency check

      $.each(rules, function(prop, val) {

        // ignore rule when param is explicitly false, eg. required:false

        if (val === false) {

          delete rules[prop];

          return;

        }

        if (val.param || val.depends) {

          var keepRule = true;

          switch (typeof val.depends) {

            case "string":

              keepRule = !!$(val.depends, element.form).length;

              break;

            case "function":

              keepRule = val.depends.call(element, element);

              break;

          }

          if (keepRule) {

            rules[prop] = val.param !== undefined ? val.param : true;

          } else {

            delete rules[prop];

          }

        }

      });

      // evaluate parameters

      $.each(rules, function(rule, parameter) {

        rules[rule] = $.isFunction(parameter) ? parameter(element) : parameter;

      });

      // clean number parameters

      $.each(['minlength', 'maxlength', 'min', 'max'], function() {

        if (rules[this]) {

          rules[this] = Number(rules[this]);

        }

      });

      $.each(['rangelength', 'range'], function() {

        if (rules[this]) {

          rules[this] = [Number(rules[this][0]), Number(rules[this][1])];

        }

      });

      if ($.validator.autoCreateRanges) {

        // auto-create ranges

        if (rules.min && rules.max) {

          rules.range = [rules.min, rules.max];

          delete rules.min;

          delete rules.max;

        }

        if (rules.minlength && rules.maxlength) {

          rules.rangelength = [rules.minlength, rules.maxlength];

          delete rules.minlength;

          delete rules.maxlength;

        }

      }

      // To support custom messages in metadata ignore rule methods titled "messages"

      if (rules.messages) {

        delete rules.messages

      }

      return rules;

    },

    // Converts a simple string to a {string: true} rule, e.g., "required" to {required:true}

    normalizeRule: function(data) {

      if( typeof data == "string" ) {

        var transformed = {};

        $.each(data.split(/\s/), function() {

          transformed[this] = true;

        });

        data = transformed;

      }

      return data;

    },

    // http://docs.jquery.com/Plugins/Validation/Validator/addMethod

    addMethod: function(name, method, message) {

      $.validator.methods[name] = method;

      $.validator.messages[name] = message;

      if (method.length < 3) {

        $.validator.addClassRules(name, $.validator.normalizeRule(name));

      }

    },

    methods: {

      // http://docs.jquery.com/Plugins/Validation/Methods/required

      required: function(value, element, param) {

        // check if dependency is met

        if ( !this.depend(param, element) )

          return "dependency-mismatch";

        switch( element.nodeName.toLowerCase() ) {

          case 'select':

            var options = $("option:selected", element);

            return options.length > 0 && ( element.type == "select-multiple" || ($.browser.msie && !(options[0].attributes['value'].specified) ? options[0].text : options[0].value).length > 0);

          case 'input':

            if ( this.checkable(element) )

              return this.getLength(value, element) > 0;

          default:

            return $.trim(value).length > 0;

        }

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/remote

      remote: function(value, element, param) {

        if ( this.optional(element) )

          return "dependency-mismatch";

        var previous = this.previousValue(element);

        if (!this.settings.messages[element.name] )

          this.settings.messages[element.name] = {};

        this.settings.messages[element.name].remote = typeof previous.message == "function" ? previous.message(value) : previous.message;

        param = typeof param == "string" && {

          url:param

        } || param;

        if ( previous.old !== value ) {

          previous.old = value;

          var validator = this;

          this.startRequest(element);

          var data = {};

          data[element.name] = value;

          $.ajax($.extend(true, {

            url: param,

            mode: "abort",

            port: "validate" + element.name,

            dataType: "json",

            data: data,

            success: function(response) {

              if ( response ) {

                var submitted = validator.formSubmitted;

                validator.prepareElement(element);

                validator.formSubmitted = submitted;

                validator.successList.push(element);

                validator.showErrors();

              } else {

                var errors = {};

                errors[element.name] =  response || validator.defaultMessage( element, "remote" );

                validator.showErrors(errors);

              }

              previous.valid = response;

              validator.stopRequest(element, response);

            }

          }, param));

          return "pending";

        } else if( this.pending[element.name] ) {

          return "pending";

        }

        return previous.valid;

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/minlength

      minlength: function(value, element, param) {

        return this.optional(element) || this.getLength($.trim(value), element) >= param;

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/maxlength

      maxlength: function(value, element, param) {

        return this.optional(element) || this.getLength($.trim(value), element) <= param;

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/rangelength

      rangelength: function(value, element, param) {

        var length = this.getLength($.trim(value), element);

        return this.optional(element) || ( length >= param[0] && length <= param[1] );

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/min

      min: function( value, element, param ) {

        return this.optional(element) || value >= param;

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/max

      max: function( value, element, param ) {

        return this.optional(element) || value <= param;

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/range

      range: function( value, element, param ) {

        return this.optional(element) || ( value >= param[0] && value <= param[1] );

      },

      // http://docs.jquery.com/Plugins/Validation/Methods/email

      email: function(value, element) {

        // contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/

        return this.optional(element) || /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i.test(value);

      },