// 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( {}, $.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) {
if ( element.name in this.submitted )
this.element(element);
},
highlight: function( element, errorClass, validClass ) {
$(element).addClass(errorClass).removeClass(validC lass);
},
unhighlight: function( element, errorClass, validClass ) {
$(element).removeClass(errorClass).addClass(validC lass);
}
},

// http://docs.jquery.com/Plugins/Valid...or/setDefaults
setDefaults: function(settings) {
$.extend( $.validator.defaults, settings );
},

messages: {
required: "This field is required.",
remote: "Please fix this field.",
email: "Please enter a valid email address.",
url: "Please enter a valid URL.",
date: "Please enter a valid date.",
dateISO: "Please enter a valid date (ISO).",
dateDE: "Bitte geben Sie ein gültiges Datum ein.",
number: "Please enter a valid number.",
numberDE: "Bitte geben Sie eine Nummer ein.",
digits: "Please enter only digits",
creditcard: "Please enter a valid credit card number.",
equalTo: "Please enter the same value again.",
accept: "Please enter a value with a valid extension.",
maxlength: $.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");
validator.settings["on" + event.type] && validator.settings["on" + event.type].call(validator, this[0] );
}
$(this.currentForm)
.delegate("focusin focusout keyup", ":text, assword, :file, select, textarea", delegate)
.delegate("click", ":radio, :checkbox", delegate);

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

// http://docs.jquery.com/Plugins/Valid...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();
},