Overleaf/services/web/public/js/libs/jquery.validate.js

/**
 * jQuery Validation Plugin @VERSION
 *
 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
 * http://docs.jquery.com/Plugins/Validation
 *
 * Copyright (c) 2012 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
 */

define([],function($) {

  
  (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) {
  			if (options && options.debug && window.console) {
  				console.warn( "nothing selected, can't validate, returning nothing" );
  			}
  			return;
  		}
  
  		// check if a validator for this form was already created
  		var validator = $.data(this[0], 'validator');
  		if ( validator ) {
  			return validator;
  		}
  
  		// Add novalidate tag if HTML5.
  		this.attr('novalidate', 'novalidate');
  
  		validator = new $.validator( options, this[0] );
  		$.data(this[0], 'validator', validator);
  
  		if ( validator.settings.onsubmit ) {
  
  			var inputsAndButtons = this.find("input, button");
  
  			// allow suppresing validation by adding a cancel class to the submit button
  			inputsAndButtons.filter(".cancel").click(function () {
  				validator.cancelSubmit = true;
  			});
  
  			// when a submitHandler is used, capture the submitting button
  			if (validator.settings.submitHandler) {
  				inputsAndButtons.filter(":submit").click(function () {
  					validator.submitButton = this;
  				});
  			}
  
  			// validate the form on submit
  			this.submit( function( event ) {
  				if ( validator.settings.debug ) {
  					// prevent form submit to be able to see console output
  					event.preventDefault();
  				}
  				function handle() {
  					var hidden;
  					if ( validator.settings.submitHandler ) {
  						if (validator.submitButton) {
  							// insert a hidden input as a replacement for the missing submit button
  							hidden = $("<input type='hidden'/>").attr("name", validator.submitButton.name).val(validator.submitButton.value).appendTo(validator.currentForm);
  						}
  						validator.settings.submitHandler.call( validator, validator.currentForm, event );
  						if (validator.submitButton) {
  							// and clean up afterwards; thanks to no-block-scope, hidden can be referenced
  							hidden.remove();
  						}
  						return false;
  					}
  					return true;
  				}
  
  				// prevent submit for invalid forms or custom submit handlers
  				if ( validator.cancelSubmit ) {
  					validator.cancelSubmit = false;
  					return handle();
  				}
  				if ( validator.form() ) {
  					if ( validator.pendingRequest ) {
  						validator.formSubmitted = true;
  						return false;
  					}
  					return handle();
  				} else {
  					validator.focusInvalid();
  					return false;
  				}
  			});
  		}
  
  		return validator;
  	},
  	// http://docs.jquery.com/Plugins/Validation/valid
  	valid: function() {
  		if ( $(this[0]).is('form')) {
  			return this.validate().form();
  		} else {
  			var valid = true;
  			var validator = $(this[0].form).validate();
  			this.each(function() {
  				valid &= validator.element(this);
  			});
  			return valid;
  		}
  	},
  	// attributes: space seperated list of attributes to retrieve and remove
  	removeAttrs: function(attributes) {
  		var result = {},
  			$element = this;
  		$.each(attributes.split(/\s/), function(index, value) {
  			result[value] = $element.attr(value);
  			$element.removeAttr(value);
  		});
  		return result;
  	},
  	// http://docs.jquery.com/Plugins/Validation/rules
  	rules: function(command, argument) {
  		var element = this[0];
  
  		if (command) {
  			var settings = $.data(element.form, 'validator').settings;
  			var staticRules = settings.rules;
  			var existingRules = $.validator.staticRules(element);
  			switch(command) {
  			case "add":
  				$.extend(existingRules, $.validator.normalizeRule(argument));
  				staticRules[element.name] = existingRules;
  				if (argument.messages) {
  					settings.messages[element.name] = $.extend( settings.messages[element.name], argument.messages );
  				}
  				break;
  			case "remove":
  				if (!argument) {
  					delete staticRules[element.name];
  					return existingRules;
  				}
  				var filtered = {};
  				$.each(argument.split(/\s/), function(index, method) {
  					filtered[method] = existingRules[method];
  					delete existingRules[method];
  				});
  				return filtered;
  			}
  		}
  
  		var data = $.validator.normalizeRules(
  		$.extend(
  			{},
  			$.validator.metadataRules(element),
  			$.validator.classRules(element),
  			$.validator.attributeRules(element),
  			$.validator.staticRules(element)
  		), element);
  
  		// make sure required is at front
  		if (data.required) {
  			var param = data.required;
  			delete data.required;
  			data = $.extend({required: param}, data);
  		}
  
  		return data;
  	}
  });
  
  // Custom selectors
  $.extend($.expr[":"], {
  	// http://docs.jquery.com/Plugins/Validation/blank
  	blank: function(a) {return !$.trim("" + a.value);},
  	// http://docs.jquery.com/Plugins/Validation/filled
  	filled: function(a) {return !!$.trim("" + a.value);},
  	// http://docs.jquery.com/Plugins/Validation/unchecked
  	unchecked: function(a) {return !a.checked;}
  });
  
  // constructor for validator
  $.validator = function( options, form ) {
  	this.settings = $.extend( true, {}, $.validator.defaults, options );
  	this.currentForm = form;
  	this.init();
  };
  
  $.validator.format = function(source, params) {
  	if ( arguments.length === 1 ) {
  		return function() {
  			var args = $.makeArray(arguments);
  			args.unshift(source);
  			return $.validator.format.apply( this, args );
  		};
  	}
  	if ( arguments.length > 2 && params.constructor !== Array  ) {
  		params = $.makeArray(arguments).slice(1);
  	}
  	if ( params.constructor !== Array ) {
  		params = [ params ];
  	}
  	$.each(params, function(i, n) {
  		source = source.replace(new RegExp("\\{" + i + "\\}", "g"), n);
  	});
  	return source;
  };
  
  $.extend($.validator, {
  
  	defaults: {
  		messages: {},
  		groups: {},
  		rules: {},
  		errorClass: "error",
  		validClass: "valid",
  		errorElement: "label",
  		focusInvalid: true,
  		errorContainer: $( [] ),
  		errorLabelContainer: $( [] ),
  		onsubmit: true,
  		ignore: ":hidden",
  		ignoreTitle: false,
  		onfocusin: function(element, event) {
  			this.lastActive = element;
  
  			// hide error label and remove error class on focus if enabled
  			if ( this.settings.focusCleanup && !this.blockFocusCleanup ) {
  				if ( this.settings.unhighlight ) {
  					this.settings.unhighlight.call( this, element, this.settings.errorClass, this.settings.validClass );
  				}
  				this.addWrapper(this.errorsFor(element)).hide();
  			}
  		},
  		onfocusout: function(element, event) {
  			if ( !this.checkable(element) && (element.name in this.submitted || !this.optional(element)) ) {
  				this.element(element);
  			}
  		},
  		onkeyup: function(element, event) {
  			if ( element.name in this.submitted || element === this.lastElement ) {
  				this.element(element);
  			}
  		},
  		onclick: function(element, event) {
  			// click on selects, radiobuttons and checkboxes
  			if ( element.name in this.submitted ) {
  				this.element(element);
  			}
  			// or option elements, check parent select in that case
  			else if (element.parentNode.name in this.submitted) {
  				this.element(element.parentNode);
  			}
  		},
  		highlight: function(element, errorClass, validClass) {
  			if (element.type === 'radio') {
  				this.findByName(element.name).addClass(errorClass).removeClass(validClass);
  			} else {
  				$(element).addClass(errorClass).removeClass(validClass);
  			}
  		},
  		unhighlight: function(element, errorClass, validClass) {
  			if (element.type === 'radio') {
  				this.findByName(element.name).removeClass(errorClass).addClass(validClass);
  			} else {
  				$(element).removeClass(errorClass).addClass(validClass);
  			}
  		}
  	},
  
  	// http://docs.jquery.com/Plugins/Validation/Validator/setDefaults
  	setDefaults: function(settings) {
  		$.extend( $.validator.defaults, settings );
  	},
  
  	messages: {
  		required: "This field is required.",
  		remote: "Please fix this field.",
  		email: "Please enter a valid email address.",
  		url: "Please enter a valid URL.",
  		date: "Please enter a valid date.",
  		dateISO: "Please enter a valid date (ISO).",
  		number: "Please enter a valid number.",
  		digits: "Please enter only digits.",
  		creditcard: "Please enter a valid credit card number.",
  		equalTo: "Please enter the same value again.",
  		accept: "Please enter a value with a valid extension.",
  		maxlength: $.validator.format("Please enter no more than {0} characters."),
  		minlength: $.validator.format("Please enter at least {0} characters."),
  		rangelength: $.validator.format("Please enter a value between {0} and {1} characters long."),
  		range: $.validator.format("Please enter a value between {0} and {1}."),
  		max: $.validator.format("Please enter a value less than or equal to {0}."),
  		min: $.validator.format("Please enter a value greater than or equal to {0}.")
  	},
  
  	autoCreateRanges: false,
  
  	prototype: {
  
  		init: function() {
  			this.labelContainer = $(this.settings.errorLabelContainer);
  			this.errorContext = this.labelContainer.length && this.labelContainer || $(this.currentForm);
  			this.containers = $(this.settings.errorContainer).add( this.settings.errorLabelContainer );
  			this.submitted = {};
  			this.valueCache = {};
  			this.pendingRequest = 0;
  			this.pending = {};
  			this.invalid = {};
  			this.reset();
  
  			var groups = (this.groups = {});
  			$.each(this.settings.groups, function(key, value) {
  				$.each(value.split(/\s/), function(index, name) {
  					groups[name] = key;
  				});
  			});
  			var rules = this.settings.rules;
  			$.each(rules, function(key, value) {
  				rules[key] = $.validator.normalizeRule(value);
  			});
  
  			function delegate(event) {
  				var validator = $.data(this[0].form, "validator"),
  					eventType = "on" + event.type.replace(/^validate/, "");
  				if (validator.settings[eventType]) {
  					validator.settings[eventType].call(validator, this[0], event);
  				}
  			}
  			$(this.currentForm)
  				.validateDelegate("[type='text'], [type='password'], [type='file'], select, textarea, " +
  					"[type='number'], [type='search'] ,[type='tel'], [type='url'], " +
  					"[type='email'], [type='datetime'], [type='date'], [type='month'], " +
  					"[type='week'], [type='time'], [type='datetime-local'], " +
  					"[type='range'], [type='color'] ",
  					"focusin focusout keyup", delegate)
  				.validateDelegate("[type='radio'], [type='checkbox'], select, option", "click", delegate);
  
  			if (this.settings.invalidHandler) {
  				$(this.currentForm).bind("invalid-form.validate", this.settings.invalidHandler);
  			}
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Validator/form
  		form: function() {
  			this.checkForm();
  			$.extend(this.submitted, this.errorMap);
  			this.invalid = $.extend({}, this.errorMap);
  			if (!this.valid()) {
  				$(this.currentForm).triggerHandler("invalid-form", [this]);
  			}
  			this.showErrors();
  			return this.valid();
  		},
  
  		checkForm: function() {
  			this.prepareForm();
  			for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
  				this.check( elements[i] );
  			}
  			return this.valid();
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Validator/element
  		element: function( element ) {
  			element = this.validationTargetFor( this.clean( element ) );
  			this.lastElement = element;
  			this.prepareElement( element );
  			this.currentElements = $(element);
  			var result = this.check( element ) !== false;
  			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);
  				});
  			}
  			if (this.settings.showErrors) {
  				this.settings.showErrors.call( this, this.errorMap, this.errorList );
  			} else {
  				this.defaultShowErrors();
  			}
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Validator/resetForm
  		resetForm: function() {
  			if ( $.fn.resetForm ) {
  				$( this.currentForm ).resetForm();
  			}
  			this.submitted = {};
  			this.lastElement = null;
  			this.prepareForm();
  			this.hideErrors();
  			this.elements().removeClass( this.settings.errorClass );
  		},
  
  		numberOfInvalids: function() {
  			return this.objectLength(this.invalid);
  		},
  
  		objectLength: function( obj ) {
  			var count = 0;
  			for ( var i in obj ) {
  				count++;
  			}
  			return count;
  		},
  
  		hideErrors: function() {
  			this.addWrapper( this.toHide ).hide();
  		},
  
  		valid: function() {
  			return this.size() === 0;
  		},
  
  		size: function() {
  			return this.errorList.length;
  		},
  
  		focusInvalid: function() {
  			if( this.settings.focusInvalid ) {
  				try {
  					$(this.findLastActive() || this.errorList.length && this.errorList[0].element || [])
  					.filter(":visible")
  					.focus()
  					// manually trigger focusin event; without it, focusin handler isn't called, findLastActive won't have anything to find
  					.trigger("focusin");
  				} catch(e) {
  					// ignore IE throwing errors when focusing hidden elements
  				}
  			}
  		},
  
  		findLastActive: function() {
  			var lastActive = this.lastActive;
  			return lastActive && $.grep(this.errorList, function(n) {
  				return n.element.name === lastActive.name;
  			}).length === 1 && lastActive;
  		},
  
  		elements: function() {
  			var validator = this,
  				rulesCache = {};
  
  			// select all valid inputs inside the form (no submit or reset buttons)
  			return $(this.currentForm)
  			.find("input, select, textarea")
  			.not(":submit, :reset, :image, [disabled]")
  			.not( this.settings.ignore )
  			.filter(function() {
  				if ( !this.name && validator.settings.debug && window.console ) {
  					console.error( "%o has no name assigned", this);
  				}
  
  				// select only the first element for each name, and only those with rules specified
  				if ( this.name in rulesCache || !validator.objectLength($(this).rules()) ) {
  					return false;
  				}
  
  				rulesCache[this.name] = true;
  				return true;
  			});
  		},
  
  		clean: function( selector ) {
  			return $( selector )[0];
  		},
  
  		errors: function() {
  			return $( this.settings.errorElement + "." + this.settings.errorClass, this.errorContext );
  		},
  
  		reset: function() {
  			this.successList = [];
  			this.errorList = [];
  			this.errorMap = {};
  			this.toShow = $([]);
  			this.toHide = $([]);
  			this.currentElements = $([]);
  		},
  
  		prepareForm: function() {
  			this.reset();
  			this.toHide = this.errors().add( this.containers );
  		},
  
  		prepareElement: function( element ) {
  			this.reset();
  			this.toHide = this.errorsFor(element);
  		},
  
  		check: function( element ) {
  			element = this.validationTargetFor( this.clean( element ) );
  
  			var rules = $(element).rules();
  			var dependencyMismatch = false;
  			for (var method in rules ) {
  				var rule = { method: method, parameters: rules[method] };
  				try {
  					var result = $.validator.methods[method].call( this, element.value.replace(/\r/g, ""), element, rule.parameters );
  
  					// if a method indicates that the field is optional and therefore valid,
  					// don't mark it as valid when there are no other rules
  					if ( result === "dependency-mismatch" ) {
  						dependencyMismatch = true;
  						continue;
  					}
  					dependencyMismatch = false;
  
  					if ( result === "pending" ) {
  						this.toHide = this.toHide.not( this.errorsFor(element) );
  						return;
  					}
  
  					if( !result ) {
  						this.formatAndAdd( element, rule );
  						return false;
  					}
  				} catch(e) {
  					if ( 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 = $.validator.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() {
  			var i, elements;
  			for ( i = 0; this.errorList[i]; i++ ) {
  				var error = this.errorList[i];
  				if ( 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 ( i = 0; this.successList[i]; i++ ) {
  					this.showLabel( this.successList[i] );
  				}
  			}
  			if (this.settings.unhighlight) {
  				for ( i = 0, elements = this.validElements(); elements[i]; i++ ) {
  					this.settings.unhighlight.call( this, elements[i], this.settings.errorClass, this.settings.validClass );
  				}
  			}
  			this.toHide = this.toHide.not( this.toShow );
  			this.hideErrors();
  			this.addWrapper( this.toShow ).show();
  		},
  
  		validElements: function() {
  			return this.currentElements.not(this.invalidElements());
  		},
  
  		invalidElements: function() {
  			return $(this.errorList).map(function() {
  				return this.element;
  			});
  		},
  
  		showLabel: function(element, message) {
  			var label = this.errorsFor( element );
  			if ( label.length ) {
  				// refresh error/success class
  				label.removeClass( this.settings.validClass ).addClass( this.settings.errorClass );
  
  				// check if we have a generated label, replace the message then
  				if ( 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 ) {
  					if ( this.settings.errorPlacement ) {
  						this.settings.errorPlacement(label, $(element) );
  					} else {
  					label.insertAfter(element);
  					}
  				}
  			}
  			if ( !message && this.settings.success ) {
  				label.text("");
  				if ( typeof this.settings.success === "string" ) {
  					label.addClass( this.settings.success );
  				} else {
  					this.settings.success( label );
  				}
  			}
  			this.toShow = this.toShow.add(label);
  		},
  
  		errorsFor: function(element) {
  			var name = this.idOrName(element);
  			return this.errors().filter(function() {
  				return $(this).attr('for') === name;
  			});
  		},
  
  		idOrName: function(element) {
  			return this.groups[element.name] || (this.checkable(element) ? element.name : element.id || element.name);
  		},
  
  		validationTargetFor: function(element) {
  			// if radio/checkbox, validate first element in group instead
  			if (this.checkable(element)) {
  				element = this.findByName( element.name ).not(this.settings.ignore)[0];
  			}
  			return element;
  		},
  
  		checkable: function( element ) {
  			return (/radio|checkbox/i).test(element.type);
  		},
  
  		findByName: function( name ) {
  			// select by name and filter by form for performance over form.find("[name=...]")
  			var form = this.currentForm;
  			return $(document.getElementsByName(name)).map(function(index, element) {
  				return element.form === form && element.name === name && element  || null;
  			});
  		},
  
  		getLength: function(value, element) {
  			switch( element.nodeName.toLowerCase() ) {
  			case 'select':
  				return $("option:selected", element).length;
  			case 'input':
  				if( this.checkable( element) ) {
  					return this.findByName(element.name).filter(':checked').length;
  				}
  			}
  			return value.length;
  		},
  
  		depend: function(param, element) {
  			return this.dependTypes[typeof param] ? this.dependTypes[typeof param](param, element) : true;
  		},
  
  		dependTypes: {
  			"boolean": function(param, element) {
  				return param;
  			},
  			"string": function(param, element) {
  				return !!$(param, element.form).length;
  			},
  			"function": function(param, element) {
  				return param(element);
  			}
  		},
  
  		optional: function(element) {
  			return !$.validator.methods.required.call(this, $.trim(element.value), element) && "dependency-mismatch";
  		},
  
  		startRequest: function(element) {
  			if (!this.pending[element.name]) {
  				this.pendingRequest++;
  				this.pending[element.name] = true;
  			}
  		},
  
  		stopRequest: function(element, valid) {
  			this.pendingRequest--;
  			// sometimes synchronization fails, make sure pendingRequest is never < 0
  			if (this.pendingRequest < 0) {
  				this.pendingRequest = 0;
  			}
  			delete this.pending[element.name];
  			if ( valid && this.pendingRequest === 0 && this.formSubmitted && this.form() ) {
  				$(this.currentForm).submit();
  				this.formSubmitted = false;
  			} else if (!valid && this.pendingRequest === 0 && this.formSubmitted) {
  				$(this.currentForm).triggerHandler("invalid-form", [this]);
  				this.formSubmitted = false;
  			}
  		},
  
  		previousValue: function(element) {
  			return $.data(element, "previousValue") || $.data(element, "previousValue", {
  				old: null,
  				valid: true,
  				message: this.defaultMessage( element, "remote" )
  			});
  		}
  
  	},
  
  	classRuleSettings: {
  		required: {required: true},
  		email: {email: true},
  		url: {url: true},
  		date: {date: true},
  		dateISO: {dateISO: true},
  		number: {number: true},
  		digits: {digits: true},
  		creditcard: {creditcard: true}
  	},
  
  	addClassRules: function(className, rules) {
  		if ( className.constructor === String ) {
  			this.classRuleSettings[className] = rules;
  		} else {
  			$.extend(this.classRuleSettings, className);
  		}
  	},
  
  	classRules: function(element) {
  		var rules = {};
  		var classes = $(element).attr('class');
  		if ( classes ) {
  			$.each(classes.split(' '), function() {
  				if (this in $.validator.classRuleSettings) {
  					$.extend(rules, $.validator.classRuleSettings[this]);
  				}
  			});
  		}
  		return rules;
  	},
  
  	attributeRules: function(element) {
  		var rules = {};
  		var $element = $(element);
  
  		for (var method in $.validator.methods) {
  			var value;
  			// If .prop exists (jQuery >= 1.6), use it to get true/false for required
  			if (method === 'required' && typeof $.fn.prop === 'function') {
  				value = $element.prop(method);
  			} else {
  				value = $element.attr(method);
  			}
  			if (value) {
  				rules[method] = value;
  			} else if ($element[0].getAttribute("type") === method) {
  				rules[method] = true;
  			}
  		}
  
  		// maxlength may be returned as -1, 2147483647 (IE) and 524288 (safari) for text inputs
  		if (rules.maxlength && /-1|2147483647|524288/.test(rules.maxlength)) {
  			delete rules.maxlength;
  		}
  
  		return rules;
  	},
  
  	metadataRules: function(element) {
  		if (!$.metadata) {
  			return {};
  		}
  
  		var meta = $.data(element.form, 'validator').settings.meta;
  		return meta ?
  			$(element).metadata()[meta] :
  			$(element).metadata();
  	},
  
  	staticRules: function(element) {
  		var rules = {};
  		var validator = $.data(element.form, 'validator');
  		if (validator.settings.rules) {
  			rules = $.validator.normalizeRule(validator.settings.rules[element.name]) || {};
  		}
  		return rules;
  	},
  
  	normalizeRules: function(rules, element) {
  		// handle dependency check
  		$.each(rules, function(prop, val) {
  			// ignore rule when param is explicitly false, eg. required:false
  			if (val === false) {
  				delete rules[prop];
  				return;
  			}
  			if (val.param || val.depends) {
  				var keepRule = true;
  				switch (typeof val.depends) {
  					case "string":
  						keepRule = !!$(val.depends, element.form).length;
  						break;
  					case "function":
  						keepRule = val.depends.call(element, element);
  						break;
  				}
  				if (keepRule) {
  					rules[prop] = val.param !== undefined ? val.param : true;
  				} else {
  					delete rules[prop];
  				}
  			}
  		});
  
  		// evaluate parameters
  		$.each(rules, function(rule, parameter) {
  			rules[rule] = $.isFunction(parameter) ? parameter(element) : parameter;
  		});
  
  		// clean number parameters
  		$.each(['minlength', 'maxlength', 'min', 'max'], function() {
  			if (rules[this]) {
  				rules[this] = Number(rules[this]);
  			}
  		});
  		$.each(['rangelength', 'range'], function() {
  			if (rules[this]) {
  				rules[this] = [Number(rules[this][0]), Number(rules[this][1])];
  			}
  		});
  
  		if ($.validator.autoCreateRanges) {
  			// auto-create ranges
  			if (rules.min && rules.max) {
  				rules.range = [rules.min, rules.max];
  				delete rules.min;
  				delete rules.max;
  			}
  			if (rules.minlength && rules.maxlength) {
  				rules.rangelength = [rules.minlength, rules.maxlength];
  				delete rules.minlength;
  				delete rules.maxlength;
  			}
  		}
  
  		// To support custom messages in metadata ignore rule methods titled "messages"
  		if (rules.messages) {
  			delete rules.messages;
  		}
  
  		return rules;
  	},
  
  	// Converts a simple string to a {string: true} rule, e.g., "required" to {required:true}
  	normalizeRule: function(data) {
  		if( typeof data === "string" ) {
  			var transformed = {};
  			$.each(data.split(/\s/), function() {
  				transformed[this] = true;
  			});
  			data = transformed;
  		}
  		return data;
  	},
  
  	// http://docs.jquery.com/Plugins/Validation/Validator/addMethod
  	addMethod: function(name, method, message) {
  		$.validator.methods[name] = method;
  		$.validator.messages[name] = message !== undefined ? message : $.validator.messages[name];
  		if (method.length < 3) {
  			$.validator.addClassRules(name, $.validator.normalizeRule(name));
  		}
  	},
  
  	methods: {
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/required
  		required: function(value, element, param) {
  			// check if dependency is met
  			if ( !this.depend(param, element) ) {
  				return "dependency-mismatch";
  			}
  			if ( element.nodeName.toLowerCase() === "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;
  			}
  			if ( this.checkable(element) ) {
  				return this.getLength(value, element) > 0;
  			}
  			return $.trim(value).length > 0;
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/remote
  		remote: function(value, element, param) {
  			if ( this.optional(element) ) {
  				return "dependency-mismatch";
  			}
  
  			var previous = this.previousValue(element);
  			if (!this.settings.messages[element.name] ) {
  				this.settings.messages[element.name] = {};
  			}
  			previous.originalMessage = this.settings.messages[element.name].remote;
  			this.settings.messages[element.name].remote = previous.message;
  
  			param = typeof param === "string" && {url:param} || param;
  
  			if ( this.pending[element.name] ) {
  				return "pending";
  			}
  			if ( previous.old === value ) {
  				return previous.valid;
  			}
  
  			previous.old = value;
  			var validator = this;
  			this.startRequest(element);
  			var data = {};
  			data[element.name] = value;
  			$.ajax($.extend(true, {
  				url: param,
  				mode: "abort",
  				port: "validate" + element.name,
  				dataType: "json",
  				data: data,
  				success: function(response) {
  					validator.settings.messages[element.name].remote = previous.originalMessage;
  					var valid = response === true;
  					if ( valid ) {
  						var submitted = validator.formSubmitted;
  						validator.prepareElement(element);
  						validator.formSubmitted = submitted;
  						validator.successList.push(element);
  						validator.showErrors();
  					} else {
  						var errors = {};
  						var message = response || validator.defaultMessage( element, "remote" );
  						errors[element.name] = previous.message = $.isFunction(message) ? message(value) : message;
  						validator.showErrors(errors);
  					}
  					previous.valid = valid;
  					validator.stopRequest(element, valid);
  				}
  			}, param));
  			return "pending";
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/minlength
  		minlength: function(value, element, param) {
  			return this.optional(element) || this.getLength($.trim(value), element) >= param;
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/maxlength
  		maxlength: function(value, element, param) {
  			return this.optional(element) || this.getLength($.trim(value), element) <= param;
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/rangelength
  		rangelength: function(value, element, param) {
  			var length = this.getLength($.trim(value), element);
  			return this.optional(element) || ( length >= param[0] && length <= param[1] );
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/min
  		min: function( value, element, param ) {
  			return this.optional(element) || value >= param;
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/max
  		max: function( value, element, param ) {
  			return this.optional(element) || value <= param;
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/range
  		range: function( value, element, param ) {
  			return this.optional(element) || ( value >= param[0] && value <= param[1] );
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/email
  		email: function(value, element) {
  			// contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/
  			return this.optional(element) || /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i.test(value);
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/url
  		url: function(value, element) {
  			// contributed by Scott Gonzalez: http://projects.scottsplayground.com/iri/
  			return this.optional(element) || /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value);
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/date
  		date: function(value, element) {
  			return this.optional(element) || !/Invalid|NaN/.test(new Date(value));
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/dateISO
  		dateISO: function(value, element) {
  			return this.optional(element) || /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/.test(value);
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/number
  		number: function(value, element) {
  			return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value);
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/digits
  		digits: function(value, element) {
  			return this.optional(element) || /^\d+$/.test(value);
  		},
  
  		// http://docs.jquery.com/Plugins/Validation/Methods/creditcard
  		// based on http://en.wikipedia.org/wiki/Luhn
  		creditcard: function(value, element) {
  			if ( this.optional(element) ) {
  				return "dependency-mismatch";
  			}
  			// accept only spaces, digits and dashes
  			if (/[^0-9 \-]+/.test(value)) {
  				return false;
  			}
  			var nCheck = 0,
  				nDigit = 0,
  				bEven = false;
  
  			value = value.replace(/\D/g, "");
  
  			for (var n = value.length - 1; n >= 0; n--) {
  				var cDigit = value.charAt(n);
  				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) {
  					var args = arguments;
  					args[0] = $.event.fix(e);
  					args[0].type = fix;
  					return $.event.handle.apply(this, args);
  				}
  			};
  			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));
}(jQuery));