jQuery.extend(jQuery.fn, {
	validate: function( options ) {

if (!this.length) {
options && options.debug && window.console && console.warn( "nothing selected, can't validate, returning nothing" );
return;
}

var validator = jQuery.data(this[0], 'validator');
if ( validator ) {
return validator;
}
validator = new jQuery.validator( options, this[0] );
jQuery.data(this[0], 'validator', validator);
if ( validator.settings.onsubmit ) {

this.find("input.cancel:submit").click(function() {
validator.cancelSubmit = true;
});

this.submit( function( event ) {
if ( validator.settings.debug )

event.preventDefault();
function handle() {
if ( validator.settings.submitHandler ) {
validator.settings.submitHandler.call( validator, validator.currentForm );
return false;
}
return true;
}

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;
},
	valid: function() {
if ( jQuery(this[0]).is('form')) {
return this.validate().form();
} else {
var valid = true;
var validator = jQuery(this[0].form).validate();
this.each(function() {
valid = validator.element(this) && valid;
});
return valid;
}
},
	rules: function() {
var element = this[0];
var data = jQuery.validator.normalizeRules(
jQuery.extend(
{},
jQuery.validator.metadataRules(element),
jQuery.validator.classRules(element),
jQuery.validator.attributeRules(element),
jQuery.validator.staticRules(element)
), element);

var rules = [];

if (data.required) {
rules.push({method:'required', parameters: data.required});
delete data.required;
}
jQuery.each(data, function(method, value) {
rules.push({
method: method,
parameters: value
});
});
return rules;
},
	push: function( t ) {
return this.setArray( this.add(t).get() );
}
});
jQuery.extend(jQuery.expr[":"], {
	blank: "!jQuery.trim(a.value)",
	filled: "!!jQuery.trim(a.value)",
	unchecked: "!a.checked"
});
jQuery.format = function(source, params) {
if ( arguments.length == 1 )
return function() {
var args = jQuery.makeArray(arguments);
args.unshift(source);
return jQuery.format.apply( this, args );
};
if ( arguments.length > 2 && params.constructor != Array
) {
params = jQuery.makeArray(arguments).slice(1);
}
if ( params.constructor != Array ) {
params = [ params ];
}
jQuery.each(params, function(i, n) {
source = source.replace(new RegExp("\\{" + i + "\\}", "g"), n);
});
return source;
};
jQuery.validator = function( options, form ) {
this.settings = jQuery.extend( {}, jQuery.validator.defaults, options );
this.currentForm = form;
this.init();
};
jQuery.extend(jQuery.validator, {
defaults: {
messages: {},
errorClass: "error",
errorElement: "label",
focusInvalid: true,
errorContainer: jQuery( [] ),
errorLabelContainer: jQuery( [] ),
onsubmit: true,
ignore: [],
onfocusin: function(element) {
this.lastActive = element;

if ( this.settings.focusCleanup && !this.blockFocusCleanup ) {
this.settings.unhighlight && this.settings.unhighlight.call( this, element, this.settings.errorClass );
this.errorsFor(element).hide();
}
},
onfocusout: function(element) {
if ( !this.checkable(element) && (element.name in this.submitted || !this.optional(element)) ) {
this.element(element);
}
},
onkeyup: function(element) {
if ( element.name in this.submitted || element == this.lastElement ) {
this.element(element);
}
},
onclick: function(element) {
if ( element.name in this.submitted )
this.element(element);
},
highlight: function( element, errorClass ) {
jQuery( element ).addClass( errorClass );
},
unhighlight: function( element, errorClass ) {
jQuery( element ).removeClass( errorClass );
}
},
	setDefaults: function(settings) {
jQuery.extend( jQuery.validator.defaults, settings );
},
messages: {
required: "This field is required.",
remote: "Please fix this field.",
email: "Please enter a valid email address.",
url: "Please enter a valid URL.",
date: "Please enter a valid date.",
dateISO: "Please enter a valid date (ISO).",
dateDE: "Bitte geben Sie ein gültiges Datum ein.",
number: "Please enter a valid number.",
numberDE: "Bitte geben Sie eine Nummer ein.",
digits: "Please enter only digits",
creditcard: "Please enter a valid credit card.",
equalTo: "Please enter the same value again.",
accept: "Please enter a value with a valid extension.",
maxlength: jQuery.format("Please enter no more than {0} characters."),
maxLength: jQuery.format("Please enter no more than {0} characters."),
minlength: jQuery.format("Please enter at least {0} characters."),
minLength: jQuery.format("Please enter at least {0} characters."),
rangelength: jQuery.format("Please enter a value between {0} and {1} characters long."),
rangeLength: jQuery.format("Please enter a value between {0} and {1} characters long."),
rangeValue: jQuery.format("Please enter a value between {0} and {1}."),
range: jQuery.format("Please enter a value between {0} and {1}."),
maxValue: jQuery.format("Please enter a value less than or equal to {0}."),
max: jQuery.format("Please enter a value less than or equal to {0}."),
minValue: jQuery.format("Please enter a value greater than or equal to {0}."),
min: jQuery.format("Please enter a value greater than or equal to {0}.")
},
autoCreateRanges: false,
prototype: {
init: function() {
this.labelContainer = jQuery(this.settings.errorLabelContainer);
this.errorContext = this.labelContainer.length && this.labelContainer || jQuery(this.currentForm);
this.containers = jQuery(this.settings.errorContainer).add( this.settings.errorLabelContainer );
this.submitted = {};
this.valueCache = {};
this.pendingRequest = 0;
this.pending = {};
this.invalid = {};
this.reset();
function delegate(event) {
var validator = jQuery.data(this[0].form, "validator");
validator.settings["on" + event.type] && validator.settings["on" + event.type].call(validator, this[0] );
}
jQuery(this.currentForm)
.delegate("focusin focusout keyup", ":text, :password, :file, select, textarea", delegate)
.delegate("click", ":radio, :checkbox", delegate);
},

form: function() {
this.prepareForm();
var elements = this.elements();
for ( var i = 0; elements[i]; i++ ) {
this.check( elements[i] );
}
jQuery.extend(this.submitted, this.errorMap);
this.invalid = jQuery.extend({}, this.errorMap);
jQuery(this.currentForm).triggerHandler("invalid-form.validate", [this]);
this.showErrors();
return this.valid();
},

element: function( element ) {
element = this.clean( element );
this.lastElement = element;
this.prepareElement( element );
var result = this.check( element );
if ( result ) {
delete this.invalid[element.name];
} else {
this.invalid[element.name] = true;
}
if ( !this.numberOfInvalids() ) {

this.toHide.push( this.containers );
}
this.showErrors();
return result;
},

showErrors: function(errors) {
if(errors) {

jQuery.extend( this.errorMap, errors );
this.errorList = [];
for ( var name in errors ) {
this.errorList.push({
message: errors[name],
element: this.findByName(name)[0]
});
}

this.successList = jQuery.grep( this.successList, function(element) {
return !(element.name in errors);
});
}
this.settings.showErrors
? this.settings.showErrors.call( this, this.errorMap, this.errorList )
: this.defaultShowErrors();
},

resetForm: function() {
if ( jQuery.fn.resetForm )
jQuery( this.currentForm ).resetForm();
this.prepareForm();
this.hideErrors();
this.elements().removeClass( this.settings.errorClass );
},
numberOfInvalids: function() {
var count = 0;
for ( var i in this.invalid )
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 {
jQuery(this.findLastActive() || this.errorList.length && this.errorList[0].element || []).filter(":visible").focus();
} catch(e) {  }
}
},
findLastActive: function() {
var lastActive = this.lastActive;
return lastActive && jQuery.grep(this.errorList, function(n) {
return n.element.name == lastActive.name;
}).length == 1 && lastActive;
},
elements: function() {
var validator = this;
var rulesCache = {};


return jQuery([]).add(this.currentForm.elements)
.filter("input, select, textarea")
.not(":submit, :reset, [disabled]")
.not( this.settings.ignore )
.filter(function() {
!this.name && validator.settings.debug && window.console && console.error( "%o has no name assigned", this);

if ( this.name in rulesCache || !jQuery(this).rules().length )
return false;
rulesCache[this.name] = true;
return true;
});
},
clean: function( selector ) {
return jQuery( selector )[0];
},
errors: function() {
return jQuery( this.settings.errorElement + "." + this.settings.errorClass, this.errorContext );
},
reset: function() {
this.successList = [];
this.errorList = [];
this.errorMap = {};
this.toShow = jQuery( [] );
this.toHide = jQuery( [] );
this.formSubmitted = false;
},
prepareForm: function() {
this.reset();
this.toHide = this.errors().push( this.containers );
},
prepareElement: function( element ) {
this.reset();
this.toHide = this.errorsFor( this.clean(element) );
},
check: function( element ) {
element = this.clean( element );
this.settings.unhighlight && this.settings.unhighlight.call( this, element, this.settings.errorClass );
var rules = jQuery(element).rules();
for( var i = 0; rules[i]; i++) {
var rule = rules[i];
try {
var result = jQuery.validator.methods[rule.method].call( this, jQuery.trim(element.value), element, rule.parameters );
if ( result == "dependency-mismatch" )
return;
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.warn("exception occured when checking element " + element.id
+ ", check the '" + rule.method + "' method");
throw e;
}
}
if ( rules.length )
this.successList.push(element);
return true;
},

customMessage: function( name, method ) {
var m = this.settings.messages[name];
return m && (m.constructor == String
? m
: m[method]);
},

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 ),

element.title || undefined,
jQuery.validator.messages[method],
"<strong>Warning: No message defined for " + element.name + "</strong>"
);
},
formatAndAdd: function( element, rule ) {
var message = this.defaultMessage( element, rule.method );
if ( typeof message == "function" )
message = message.call(this, rule.parameters, element);
this.errorList.push({
message: message,
element: element
});
this.errorMap[element.name] = message;
this.submitted[element.name] = message;
},
addWrapper: function(toToggle) {
if ( this.settings.wrapper )
toToggle.push( toToggle.parents( this.settings.wrapper ) );
return toToggle;
},
defaultShowErrors: function() {
for ( var i = 0; this.errorList[i]; i++ ) {
var error = this.errorList[i];
this.settings.highlight && this.settings.highlight.call( this, error.element, this.settings.errorClass );
this.showLabel( error.element, error.message );
}
if( this.errorList.length ) {
this.toShow.push( this.containers );
}
if (this.settings.success) {
for ( var i = 0; this.successList[i]; i++ ) {
this.showLabel( this.successList[i] );
}
}
this.toHide = this.toHide.not( this.toShow );
this.hideErrors();
this.addWrapper( this.toShow ).show();
},
showLabel: function(element, message) {
var label = this.errorsFor( element );
if ( label.length ) {

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

label.attr("generated") && label.html(message);
} else {

label = jQuery("<" + this.settings.errorElement + "/>")
.attr({"for":
this.idOrName(element), generated: true})
.addClass(this.settings.errorClass)
.html(message || "");
if ( this.settings.wrapper ) {


label = label.hide().show().wrap("<" + this.settings.wrapper + ">").parent();
}
if ( !this.labelContainer.append(label).length )
this.settings.errorPlacement
? this.settings.errorPlacement(label, jQuery(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.push(label);
},
errorsFor: function(element) {
return this.errors().filter("[@for='" + this.idOrName(element) + "']");
},
idOrName: function(element) {
return this.checkable(element) ? element.name : element.id || element.name;
},
rules: function( element ) {
return jQuery(element).rules();
},
checkable: function( element ) {
return /radio|checkbox/i.test(element.type);
},
findByName: function( name ) {

var form = this.currentForm;
return jQuery(document.getElementsByName(name)).map(function(index, element) {
return element.form == form && element || null;

});
},
getLength: function(value, element) {
switch( element.nodeName.toLowerCase() ) {
case 'select':
return jQuery("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 !!jQuery(param, element.form).length;
},
"function": function(param, element) {
return param(element);
}
},
optional: function(element) {
return !jQuery.validator.methods.required.call(this, jQuery.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--;

if (this.pendingRequest < 0)
this.pendingRequest = 0;
delete this.pending[element.name];
if ( valid && this.pendingRequest == 0 && this.formSubmitted && this.form() ) {
jQuery(this.currentForm).submit();
}
},
previousValue: function(element) {
return jQuery.data(element, "previousValue") || jQuery.data(element, "previousValue", previous = {
old: null,
valid: true,
message: this.defaultMessage( element, "remote" )
});
}
},
classRuleSettings: {
required: {required: true},
email: {email: true},
url: {url: true},
date: {date: true},
dateISO: {dateISO: true},
dateDE: {dateDE: true},
number: {number: true},
numberDE: {numberDE: true},
digits: {digits: true},
creditcard: {creditcard: true}
},
addClassRules: function(className, rules) {
className.constructor == String ?
this.classRuleSettings[className] = rules :
jQuery.extend(this.classRuleSettings, className);
},
classRules: function(element) {
var rules = {};
var classes = jQuery(element).attr('class');
classes && jQuery.each(classes.split(' '), function() {
if (this in jQuery.validator.classRuleSettings) {
jQuery.extend(rules, jQuery.validator.classRuleSettings[this]);
}
});
return rules;
},
attributeRules: function(element) {
var rules = {};
var $element = jQuery(element);
for (method in jQuery.validator.methods) {
var value = $element.attr(method);

if (value !== undefined && value !== '') {
rules[method] = value;
}
}

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

delete rules.maxLength;
}
return rules;
},
metadataRules: function(element) {
if (!jQuery.metadata) return {};
var meta = jQuery.data(element.form, 'validator').settings.meta;
return meta ?
jQuery(element).metadata()[meta] :
jQuery(element).metadata();
},
staticRules: function(element) {
var rules = {};
var validator = jQuery.data(element.form, 'validator');
if (validator.settings.rules) {
rules = jQuery.validator.normalizeRule(validator.settings.rules[element.name]) || {};
}
return rules;
},
normalizeRules: function(rules, element) {

jQuery.each({
minLength: 'minlength',
maxLength: 'maxlength',
rangeLength: 'rangelength',
minValue: 'min',
maxValue: 'max',
rangeValue: 'range'
}, function(dep, curr) {
if (rules[dep]) {
rules[curr] = rules[dep];
delete rules[dep];
}
});

jQuery.each(rules, function(rule, parameter) {
rules[rule] = jQuery.isFunction(parameter) ? parameter(element) : parameter;
});

jQuery.each(['minlength', 'maxlength', 'min', 'max'], function() {
if (rules[this]) {
rules[this] = Number(rules[this]);
}
});
jQuery.each(['rangelength', 'range'], function() {
if (rules[this]) {
rules[this] = [Number(rules[this][0]), Number(rules[this][1])];
}
});
if (jQuery.validator.autoCreateRanges) {

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;
}
}
return rules;
},
	normalizeRule: function(data) {
if( typeof data == "string" ) {
var transformed = {};
transformed[data] = true;
data = transformed;
}
return data;
},
	addMethod: function(name, method, message) {
jQuery.validator.methods[name] = method;
jQuery.validator.messages[name] = message;
if (method.length < 3) {
jQuery.validator.addClassRules(name, jQuery.validator.normalizeRule(name));
}
},
methods: {

required: function(value, element, param) {

if ( !this.depend(param, element) )
return "dependency-mismatch";
switch( element.nodeName.toLowerCase() ) {
case 'select':
var options = jQuery("option:selected", element);
return options.length > 0 && ( element.type == "select-multiple" || (jQuery.browser.msie && !(options[0].attributes['value'].specified) ? options[0].text : options[0].value).length > 0);
case 'input':
if ( this.checkable(element) )
return this.getLength(value, element) > 0;
default:
return value.length > 0;
}
},

remote: function(value, element, param) {
if ( this.optional(element) )
return "dependency-mismatch";
var previous = this.previousValue(element);
if (!this.settings.messages[element.name] )
this.settings.messages[element.name] = {};
this.settings.messages[element.name].remote = typeof previous.message == "function" ? previous.message(value) : previous.message;
if ( previous.old !== value ) {
previous.old = value;
var validator = this;
this.startRequest(element);
var data = {};
data[element.name] = value;
jQuery.ajax({
url: param,
mode: "abort",
port: "validate" + element.name,
dataType: "json",
data: data,
success: function(response) {
if ( !response ) {
var errors = {};
errors[element.name] =
response || validator.defaultMessage( element, "remote" );
validator.showErrors(errors);
} else {
var submitted = validator.formSubmitted;
validator.prepareElement(element);
validator.formSubmitted = submitted;
validator.successList.push(element);
validator.showErrors();
}
previous.valid = response;
validator.stopRequest(element, response);
}
});
return "pending";
} else if( this.pending[element.name] ) {
return "pending";
}
return previous.valid;
},

minlength: function(value, element, param) {
return this.optional(element) || this.getLength(value, element) >= param;
},

minLength: function(value, element, param) {
return jQuery.validator.methods.minlength.apply(this, arguments);
},

maxlength: function(value, element, param) {
return this.optional(element) || this.getLength(value, element) <= param;
},

maxLength: function(value, element, param) {
return jQuery.validator.methods.maxlength.apply(this, arguments);
},

rangelength: function(value, element, param) {
var length = this.getLength(value, element);
return this.optional(element) || ( length >= param[0] && length <= param[1] );
},

rangeLength: function(value, element, param) {
return jQuery.validator.methods.rangelength.apply(this, arguments);
},

min: function( value, element, param ) {
return this.optional(element) || value >= param;
},

minValue: function() {
return jQuery.validator.methods.min.apply(this, arguments);
},

max: function( value, element, param ) {
return this.optional(element) || value <= param;
},

maxValue: function() {
return jQuery.validator.methods.max.apply(this, arguments);
},

range: function( value, element, param ) {
return this.optional(element) || ( value >= param[0] && value <= param[1] );
},

rangeValue: function() {
return jQuery.validator.methods.range.apply(this, arguments);
},

email: function(value, element) {

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);
},

url: function(value, element) {

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/dateDE
		dateDE: function(value, element) {
			return this.optional(element) || /^\d\d?\.\d\d?\.\d\d\d?\d?$/.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/numberDE
		numberDE: 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";
			var nCheck = 0,
				nDigit = 0,
				bEven = false;

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

			for (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 : "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) {
			return value == jQuery(param).val();
		}
		
	}
	
});

// 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 = jQuery.extend(settings, jQuery.extend({}, jQuery.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 

// provides triggerEvent(type: String, target: Element) to trigger delegated events
;(function($) {
	$.extend($.event.special, {
		focusin: {
			setup: function() {
				if ($.browser.msie)
					return false;
				this.addEventListener("focus", $.event.special.focusin.handler, true);
			},
			teardown: function() {
				if ($.browser.msie)
					return false;
				this.removeEventListener("focus", $.event.special.focusin.handler, true);
			},
			handler: function(event) {
				var args = Array.prototype.slice.call( arguments, 1 );
				args.unshift($.extend($.event.fix(event), { type: "focusin" }));
				return $.event.handle.apply(this, args);
			}
		},
		focusout: {
			setup: function() {
				if ($.browser.msie)
					return false;
				this.addEventListener("blur", $.event.special.focusout.handler, true);
			},
			teardown: function() {
				if ($.browser.msie)
					return false;
				this.removeEventListener("blur", $.event.special.focusout.handler, true);
			},
			handler: function(event) {
				var args = Array.prototype.slice.call( arguments, 1 );
				args.unshift($.extend($.event.fix(event), { type: "focusout" }));
				return $.event.handle.apply(this, args);
			}
		}
	});
	$.extend($.fn, {
		delegate: function(type, delegate, handler) {
			return this.bind(type, function(event) {
				var target = $(event.target);
				if (target.is(delegate)) {
					return handler.apply(target, arguments);
				}
			});
		},
		triggerEvent: function(type, target) {
			return this.triggerHandler(type, [jQuery.event.fix({ type: type, target: target })]);
		}
	})
})(jQuery);