jquery.validate.js

/*
 * jQuery validation plug-in 1.7
 *
 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
 * http://docs.jquery.com/Plugins/Validation
 *
 * Copyright (c) 2006 - 2008 Jörn Zaefferer
 *
 * $Id: jquery.validate.js 6403 2009-06-17 14:27:16Z 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;
        });
            
        // when a submitHandler is used, capture the submitting button
        if (validator.settings.submitHandler) {
             this.find("input, button").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: [],
      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.settings.validClass );
          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) {
        // 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 ) {
        $(element).addClass(errorClass).removeClass(validClass);
      },
      unhighlight: function( element, errorClass, validClass ) {
        $(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] );
        }
        $(this.currentForm)
                .validateDelegate(":text, :password, :file, select, textarea", "focusin focusout keyup", delegate)
                .validateDelegate(":radio, :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.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()
            // 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)
        // 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.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", 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().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);
      },

      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 (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 != 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 ( 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) {
              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 = (previous.message = response || validator.defaultMessage( element, "remote" ));
                errors[element.name] = $.isFunction(message) ? message(value) : message;
                validator.showErrors(errors);
              }
              previous.valid = valid;
              validator.stopRequest(element, valid);
            }
          }, 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);
      },
    
      // 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 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 ajax = $.ajax;
  var pendingRequests = {};
  $.ajax = function(settings) {
    // create settings for compatibility with ajaxSetup
    settings = $.extend(settings, $.extend({}, $.ajaxSettings, settings));
    var port = settings.port;
    if (settings.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);