/**
 * jQuery Validation Plugin 1.8.0
 *
 * 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;
      }

      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.addWrapper(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 ).not(this.settings.ignore)[0];
         }

         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().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 (var 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 ( 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-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9äüöÄÜÖß](?:[a-zäüöÄÜÖß0-9-]*[a-zäüöÄÜÖß0-9])?\.)+[a-z0-9]{2}(?:[a-z0-9-]*[a-z0-9])?$/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 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);