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assets/javascripts/validate.js

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/**
 * jQuery Validation Plugin 1.9.0
 *
 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
 * http://docs.jquery.com/Plugins/Validation
 *
 * Copyright (c) 2006 - 2011 Jörn 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;
      }

      // Add novalidate tag if HTML5.
      this.attr('novalidate', 'novalidate');

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

      if (validator.settings.onsubmit) {

        var inputsAndButtons = this.find("input, button");

        // allow suppresing validation by adding a cancel class to the submit button
        inputsAndButtons.filter(".cancel").click(function() {
          validator.cancelSubmit = true;
        });

        // when a submitHandler is used, capture the submitting button
        if (validator.settings.submitHandler) {
          inputsAndButtons.filter(":submit").click(function() {
            validator.submitButton = this;
          });
        }

        // 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) {
              if (validator.submitButton) {
                // insert a hidden input as a replacement for the missing submit button
                var hidden = $("<input type='hidden'/>").attr("name", validator.submitButton.name).val(validator.submitButton.value).appendTo(validator.currentForm);
              }
              validator.settings.submitHandler.call(validator, validator.currentForm);
              if (validator.submitButton) {
                // and clean up afterwards; thanks to no-block-scope, hidden can be referenced
                hidden.remove();
              }
              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 = true;
        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;
    }
  });

  // constructor for validator
  $.validator = function(options, form) {
    this.settings = $.extend(true, {}, $.validator.defaults, options);
    this.currentForm = form;
    this.init();
  };

  $.validator.format = function(source, params) {
    if (arguments.length == 1)
      return function() {
        var args = $.makeArray(arguments);
        args.unshift(source);
        return $.validator.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;
  };

  $.extend($.validator, {

    defaults : {
      messages : {},
      groups : {},
      rules : {},
      errorClass : "error",
      validClass : "valid",
      errorElement : "label",
      focusInvalid : true,
      errorContainer : $([]),
      errorLabelContainer : $([]),
      onsubmit : true,
      ignore : ":hidden",
      ignoreTitle : false,
      onfocusin : function(element, event) {
        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.settings.validClass);
          this.addWrapper(this.errorsFor(element)).hide();
        }
      },
      onfocusout : function(element, event) {
        if (!this.checkable(element) && (element.name in this.submitted || !this.optional(element))) {
          this.element(element);
        }
      },
      onkeyup : function(element, event) {
        if (element.name in this.submitted || element == this.lastElement) {
          this.element(element);
        }
      },
      onclick : function(element, event) {
        // click on selects, radiobuttons and checkboxes
        if (element.name in this.submitted)
          this.element(element);
        // or option elements, check parent select in that case
        else if (element.parentNode.name in this.submitted)
          this.element(element.parentNode);
      },
      highlight : function(element, errorClass, validClass) {
        if (element.type === 'radio') {
          this.findByName(element.name).addClass(errorClass).removeClass(validClass);
        } else {
          $(element).addClass(errorClass).removeClass(validClass);
        }
      },
      unhighlight : function(element, errorClass, validClass) {
        if (element.type === 'radio') {
          this.findByName(element.name).removeClass(errorClass).addClass(validClass);
        } else {
          $(element).removeClass(errorClass).addClass(validClass);
        }
      }
    },

    // 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).",
      number : "Please enter a valid number.",
      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 : $.validator.format("Please enter no more than {0} characters."),
      minlength : $.validator.format("Please enter at least {0} characters."),
      rangelength : $.validator.format("Please enter a value between {0} and {1} characters long."),
      range : $.validator.format("Please enter a value between {0} and {1}."),
      max : $.validator.format("Please enter a value less than or equal to {0}."),
      min : $.validator.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"), eventType = "on" + event.type.replace(/^validate/, "");
          validator.settings[eventType] && validator.settings[eventType].call(validator, this[0], event);
        }


        $(this.currentForm).validateDelegate("[type='text'], [type='password'], [type='file'], select, textarea, " + "[type='number'], [type='search'] ,[type='tel'], [type='url'], " + "[type='email'], [type='datetime'], [type='date'], [type='month'], " + "[type='week'], [type='time'], [type='datetime-local'], " + "[type='range'], [type='color'] ", "focusin focusout keyup", delegate).validateDelegate("[type='radio'], [type='checkbox'], select, option", "click", 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.validationTargetFor(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.lastElement = null;
        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()
            // manually trigger focusin event; without it, focusin handler isn't called, findLastActive won't have anything to find
            .trigger("focusin");
          } 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)
        return $(this.currentForm).find("input, select, textarea").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.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.validationTargetFor(this.clean(element));

        var rules = $(element).rules();
        var dependencyMismatch = false;
        for (var 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", e);
            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), theregex = /\$?\{(\d+)\}/g;
        if ( typeof message == "function") {
          message = message.call(this, rule.parameters, element);
        } else if (theregex.test(message)) {
          message = jQuery.format(message.replace(theregex, '{$1}'), rule.parameters);
        }
        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.parent(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.settings.validClass);
          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.settings.validClass);
          }
        }
        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(this.settings.validClass).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) {
        var name = this.idOrName(element);
        return this.errors().filter(function() {
          return $(this).attr('for') == name;
        });
      },

      idOrName : function(element) {
        return this.groups[element.name] || (this.checkable(element) ? element.name : element.id || element.name);
      },

      validationTargetFor : function(element) {
        // if radio/checkbox, validate first element in group instead
        if (this.checkable(element)) {
          element = this.findByName( element.name ).not(this.settings.ignore)[0];
        }
        return element;
      },

      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();
          this.formSubmitted = false;
        } else if (!valid && this.pendingRequest == 0 && this.formSubmitted) {
          $(this.currentForm).triggerHandler("invalid-form", [this]);
          this.formSubmitted = false;
        }
      },

      previousValue : function(element) {
        return $.data(element, "previousValue") || $.data(element, "previousValue", {
          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 (var method in $.validator.methods) {
        var value;
        // If .prop exists (jQuery >= 1.6), use it to get true/false for required
        if (method === 'required' && typeof $.fn.prop === 'function') {
          value = $element.prop(method);
        } else {
          value = $element.attr(method);
        }
        if (value) {
          rules[method] = value;
        } else if ($element[0].getAttribute("type") === method) {
          rules[method] = true;
        }
      }

      // 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 != undefined ? message : $.validator.messages[name];
      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':
            // could be an array for select-multiple or a string, both are fine this way
            var val = $(element).val();
            return val && val.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] = {};
        previous.originalMessage = this.settings.messages[element.name].remote;
        this.settings.messages[element.name].remote = previous.message;

        param = typeof param == "string" && {
          url : param
        } || param;

        if (this.pending[element.name]) {
          return "pending";
        }
        if (previous.old === value) {
          return previous.valid;
        }

        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) {
            validator.settings.messages[element.name].remote = previous.originalMessage;
            var valid = response === true;
            if (valid) {
              var submitted = validator.formSubmitted;
              validator.prepareElement(element);
              validator.formSubmitted = submitted;
              validator.successList.push(element);
              validator.showErrors();
            } else {
              var errors = {};
              var message = response || validator.defaultMessage(element, "remote");
              errors[element.name] = previous.message = $.isFunction(message) ? message(value) : message;
              validator.showErrors(errors);
            }
            previous.valid = valid;
            validator.stopRequest(element, valid);
          }
        }, param));
        return "pending";
      },

      // 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);
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/url
      url : function(value, element) {
        // contributed by Scott Gonzalez: http://projects.scottsplayground.com/iri/
        return this.optional(element) || /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([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])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value);
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/date
      date : function(value, element) {
        return this.optional(element) || !/Invalid|NaN/.test(new Date(value));
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/dateISO
      dateISO : function(value, element) {
        return this.optional(element) || /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(value);
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/number
      number : function(value, element) {
        return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value);
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/digits
      digits : function(value, element) {
        return this.optional(element) || /^\d+$/.test(value);
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/creditcard
      // based on http://en.wikipedia.org/wiki/Luhn
      creditcard : function(value, element) {
        if (this.optional(element))
          return "dependency-mismatch";
        // accept only spaces, digits and dashes
        if (/[^0-9 -]+/.test(value))
          return false;
        var nCheck = 0, nDigit = 0, bEven = false;

        value = value.replace(/\D/g, "");

        for (var n = value.length - 1; n >= 0; n--) {
          var cDigit = value.charAt(n);
          var nDigit = parseInt(cDigit, 10);
          if (bEven) {
            if ((nDigit *= 2) > 9)
              nDigit -= 9;
          }
          nCheck += nDigit;
          bEven = !bEven;
        }

        return (nCheck % 10) == 0;
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/accept
      accept : function(value, element, param) {
        param = typeof param == "string" ? param.replace(/,/g, '|') : "png|jpe?g|gif";
        return this.optional(element) || value.match(new RegExp(".(" + param + ")$", "i"));
      },

      // http://docs.jquery.com/Plugins/Validation/Methods/equalTo
      equalTo : function(value, element, param) {
        // bind to the blur event of the target in order to revalidate whenever the target field is updated
        // TODO find a way to bind the event just once, avoiding the unbind-rebind overhead
        var target = $(param).unbind(".validate-equalTo").bind("blur.validate-equalTo", function() {
          $(element).valid();
        });
        return value == target.val();
      }
    }

  });

  // deprecated, use $.validator.format instead
  $.format = $.validator.format;

})(jQuery);

// ajax mode: abort
// usage: $.ajax({ mode: "abort"[, port: "uniqueport"]});
// if mode:"abort" is used, the previous request on that port (port can be undefined) is aborted via XMLHttpRequest.abort()
;(function($) {
  var pendingRequests = {};
  // Use a prefilter if available (1.5+)
  if ($.ajaxPrefilter) {
    $.ajaxPrefilter(function(settings, _, xhr) {
      var port = settings.port;
      if (settings.mode == "abort") {
        if (pendingRequests[port]) {
          pendingRequests[port].abort();
        }
        pendingRequests[port] = xhr;
      }
    });
  } else {
    // Proxy ajax
    var ajax = $.ajax;
    $.ajax = function(settings) {
      var mode = ("mode" in settings ? settings : $.ajaxSettings ).mode, port = ("port" in settings ? settings : $.ajaxSettings ).port;
      if (mode == "abort") {
        if (pendingRequests[port]) {
          pendingRequests[port].abort();
        }
        return (pendingRequests[port] = ajax.apply(this, arguments));
      }
      return ajax.apply(this, arguments);
    };
  }
})(jQuery);

// provides cross-browser focusin and focusout events
// IE has native support, in other browsers, use event caputuring (neither bubbles)

// provides delegate(type: String, delegate: Selector, handler: Callback) plugin for easier event delegation
// handler is only called when $(event.target).is(delegate), in the scope of the jquery-object for event.target
;(function($) {
  // only implement if not provided by jQuery core (since 1.4)
  // TODO verify if jQuery 1.4's implementation is compatible with older jQuery special-event APIs
  if (!jQuery.event.special.focusin && !jQuery.event.special.focusout && document.addEventListener) {
    $.each({
      focus : 'focusin',
      blur : 'focusout'
    }, function(original, fix) {
      $.event.special[fix] = {
        setup : function() {
          this.addEventListener(original, handler, true);
        },
        teardown : function() {
          this.removeEventListener(original, handler, true);
        },
        handler : function(e) {
          arguments[0] = $.event.fix(e);
          arguments[0].type = fix;
          return $.event.handle.apply(this, arguments);
        }
      };
      function handler(e) {
        e = $.event.fix(e);
        e.type = fix;
        return $.event.handle.call(this, e);
      }

    });
  };
  $.extend($.fn, {
    validateDelegate : function(delegate, type, handler) {
      return this.bind(type, function(event) {
        var target = $(event.target);
        if (target.is(delegate)) {
          return handler.apply(target, arguments);
        }
      });
    }
  });
})(jQuery);