diff --git a/admin-dev/themes/default/template/controllers/login/content.tpl b/admin-dev/themes/default/template/controllers/login/content.tpl
index 70068f7d5..f4b321eab 100755
--- a/admin-dev/themes/default/template/controllers/login/content.tpl
+++ b/admin-dev/themes/default/template/controllers/login/content.tpl
@@ -49,29 +49,33 @@
 				{if !isset($wrong_folder_name) && !isset($wrong_install_name)}
 					<form action="#" id="login_form" method="post" class="form-horizontal">
 						<fieldset>
-							<div class="row">
+							<div class="form-group">
 								<label for="email" class="control-label col-lg-3">
 									{l s='Email address:'}
 								</label>
 								<div class="input-group col-lg-5">
 									<span class="input-group-addon"><i class="icon-envelope"></i></span>
-									<input type="text" id="email" name="email" class="input email_field" tabindex="1" value="{if isset($email)}{$email|escape:'htmlall':'UTF-8'}{/if}" />
+									<input autofocus="autofocus" type="text" id="email" name="email" class="input email_field" value="{if isset($email)}{$email|escape:'htmlall':'UTF-8'}{/if}" />
 								</div>
 							</div>	
-							<div class="row">
+							<div class="form-group">
 								<label for="passwd" class="control-label col-lg-3">
 									{l s='Password:'}
 								</label>
 								<div class="input-group col-lg-5">
 									<span class="input-group-addon"><i class="icon-key"></i></span>
-									<input id="passwd" type="password" name="passwd" class="input password_field" tabindex="2" value="{if isset($password)}{$password}{/if}"/>
+									<input id="passwd" type="password" name="passwd" class="input password_field" value="{if isset($password)}{$password}{/if}"/>
 								</div>
 							</div>									
-							<div class="row">
+							<div class="form-group">
 								<div class="col-lg-9 col-lg-offset-3">
 									<button class="btn btn-default" name="submitLogin" type="submit">
 										{l s='Log in'}
 									</button>
+								</div>
+							</div>
+							<div class="form-group">
+								<div class="col-lg-9 col-lg-offset-3">
 									<p>		
 										<a href="#" class="show-forgot-password">
 											<i class="icon-question-sign"></i>
@@ -86,23 +90,27 @@
 					<form action="#" id="forgot_password_form" method="post" class="hide form-horizontal">
 						<fieldset>
 							<h2>{l s='Forgot your password?'}</h2>
-							<p class="bold">
-								{l s='In order to receive your access code by email, please enter the address you provided during the registration process.'}
+							<p>
+								<strong>{l s='In order to receive your access code by email, please enter the address you provided during the registration process.'}</strong>
 							</p>	
-							<div class="row">
+							<div class="form-group">
 								<label class="control-label col-lg-3">
 									{l s='Email address:'}
 								</label>
 								<div class="input-group col-lg-5">
 									<span class="input-group-addon"><i class="icon-envelope"></i></span>
-									<input type="text" name="email_forgot" id="email_forgot" class="input email_field" />
+									<input autofocus="autofocus" type="text" name="email_forgot" id="email_forgot" class="input email_field" />
 								</div>
 							</div>
-							<div class="row">
+							<div class="form-group">
 								<div class="col-lg-9 col-lg-offset-3">
 									<button class="btn btn-default" name="submitLogin" type="submit">
 										{l s='Send'}
 									</button>
+								</div>
+							</div>
+							<div class="form-group">
+								<div class="col-lg-9 col-lg-offset-3">
 									<p>		
 										<a href="#" class="show-login-form">
 											<i class="icon-angle-left"></i>
diff --git a/controllers/admin/AdminLoginController.php b/controllers/admin/AdminLoginController.php
index 959d9c848..303c23944 100755
--- a/controllers/admin/AdminLoginController.php
+++ b/controllers/admin/AdminLoginController.php
@@ -45,6 +45,7 @@ class AdminLoginControllerCore extends AdminController
 		$admin_webpath = preg_replace('/^'.preg_quote(DIRECTORY_SEPARATOR, '/').'/', '', $admin_webpath);
 		$this->addJquery();
 		$this->addCSS('/'.$admin_webpath.'/themes/'.$this->bo_theme.'/css/admin-theme.css');
+		$this->addJS(_PS_JS_DIR_.'vendor/jquery.validate.js');
 		$this->addJS(_PS_JS_DIR_.'login.js');
 		$this->addJqueryUI('ui.widget');
 		$this->addJqueryUI('effects.shake');
diff --git a/js/login.js b/js/login.js
index 4a7c87feb..29abcc142 100644
--- a/js/login.js
+++ b/js/login.js
@@ -1,19 +1,33 @@
 $(document).ready(function() {
-	// Focus on email address field
-	$('#email').focus();
-
 	// Initialize events
-	$('#login_form').submit(function(e) {
-		// Kill default behaviour
-		e.preventDefault();
-		doAjaxLogin($('#redirect').val());
-	});
+	$("#login_form").validate({
+	      rules: {
+	         "email":{
+	            "email": true,
+	            "required": true
+	         },
+	         "passwd": {
+	            "required": true
+	         }
+	       },
+			submitHandler: function(form)
+			{
+			   doAjaxLogin($('#redirect').val());
+			}
+	  });
 
-	$('#forgot_password_form').submit(function(e) {
-		// Kill default behaviour
-		e.preventDefault();
-		doAjaxForgot();
-	});
+	$("#forgot_password_form").validate({
+	      rules: {
+	         "email_forgot":{
+	            "email": true,
+	            "required": true
+	         }
+	       },
+			submitHandler: function(form)
+			{
+			  doAjaxForgot();
+			}
+	  });
 
 	$('.show-forgot-password').click(function(e) {
 		// Kill default behaviour
@@ -124,7 +138,6 @@ function displayErrors(errors) {
 	str_errors = '<p><strong>' + (errors.length > 1 ? there_are : there_is) + ' ' + errors.length + ' ' + (errors.length > 1 ? label_errors : label_error) + '</strong></p><ol>';
 	for (var error in errors) //IE6 bug fix
 		if (error != 'indexOf') str_errors += '<li>' + errors[error] + '</li>';
-	$('.ajax-loader').hide();
 	$('#error').html(str_errors + '</ol>').removeClass('hide').fadeIn('slow');
 	$("#login").effect("shake", {
 		times: 4
diff --git a/js/vendor/jquery.validate.js b/js/vendor/jquery.validate.js
new file mode 100644
index 000000000..88ba300ea
--- /dev/null
+++ b/js/vendor/jquery.validate.js
@@ -0,0 +1,1231 @@
+/*!
+ * jQuery Validation Plugin 1.11.1
+ *
+ * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
+ * http://docs.jquery.com/Plugins/Validation
+ *
+ * Copyright 2013 Jörn Zaefferer
+ * Released under the MIT license:
+ *   http://www.opensource.org/licenses/mit-license.php
+ */
+
+(function($) {
+
+$.extend($.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 ) {
+
+			this.validateDelegate( ":submit", "click", function( event ) {
+				if ( validator.settings.submitHandler ) {
+					validator.submitButton = event.target;
+				}
+				// allow suppressing validation by adding a cancel class to the submit button
+				if ( $(event.target).hasClass("cancel") ) {
+					validator.cancelSubmit = true;
+				}
+
+				// allow suppressing validation by adding the html5 formnovalidate attribute to the submit button
+				if ( $(event.target).attr("formnovalidate") !== undefined ) {
+					validator.cancelSubmit = true;
+				}
+			});
+
+			// 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).val() ).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 = 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));
+				// remove messages from rules, but allow them to be set separetely
+				delete existingRules.messages;
+				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.classRules(element),
+			$.validator.attributeRules(element),
+			$.validator.dataRules(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("" + $(a).val()); },
+	// http://docs.jquery.com/Plugins/Validation/filled
+	filled: function( a ) { return !!$.trim("" + $(a).val()); },
+	// http://docs.jquery.com/Plugins/Validation/unchecked
+	unchecked: function( a ) { return !$(a).prop("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 ];
+	}
+	$.each(params, function( i, n ) {
+		source = source.replace( new RegExp("\\{" + i + "\\}", "g"), function() {
+			return n;
+		});
+	});
+	return source;
+};
+
+$.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 ( event.which === 9 && this.elementValue(element) === "" ) {
+				return;
+			} else 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.",
+		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 ) {
+				if ( typeof value === "string" ) {
+					value = value.split(/\s/);
+				}
+				$.each(value, 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(":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 ).removeData( "previousValue" );
+		},
+
+		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() {
+			var errorClass = this.settings.errorClass.replace(" ", ".");
+			return $(this.settings.errorElement + "." + 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);
+		},
+
+		elementValue: function( element ) {
+			var type = $(element).attr("type"),
+				val = $(element).val();
+
+			if ( type === "radio" || type === "checkbox" ) {
+				return $("input[name='" + $(element).attr("name") + "']:checked").val();
+			}
+
+			if ( typeof val === "string" ) {
+				return val.replace(/\r/g, "");
+			}
+			return val;
+		},
+
+		check: function( element ) {
+			element = this.validationTargetFor( this.clean( element ) );
+
+			var rules = $(element).rules();
+			var dependencyMismatch = false;
+			var val = this.elementValue(element);
+			var result;
+
+			for (var method in rules ) {
+				var rule = { method: method, parameters: rules[method] };
+				try {
+
+					result = $.validator.methods[method].call( this, val, 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 occurred 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 HTML5 data attribute
+		customDataMessage: function( element, method ) {
+			return $(element).data("msg-" + method.toLowerCase()) || (element.attributes && $(element).attr("data-msg-" + method.toLowerCase()));
+		},
+
+		// 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.customDataMessage( 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 );
+				// replace message on existing label
+				label.html(message);
+			} else {
+				// create label
+				label = $("<" + this.settings.errorElement + ">")
+					.attr("for", this.idOrName(element))
+					.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, element );
+				}
+			}
+			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 ) {
+			return $(this.currentForm).find("[name='" + name + "']");
+		},
+
+		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 ) {
+			var val = this.elementValue(element);
+			return !$.validator.methods.required.call(this, val, 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);
+		var type = $element[0].getAttribute("type");
+
+		for (var method in $.validator.methods) {
+			var value;
+
+			// support for <input required> in both html5 and older browsers
+			if ( method === "required" ) {
+				value = $element.get(0).getAttribute(method);
+				// Some browsers return an empty string for the required attribute
+				// and non-HTML5 browsers might have required="" markup
+				if ( value === "" ) {
+					value = true;
+				}
+				// force non-HTML5 browsers to return bool
+				value = !!value;
+			} else {
+				value = $element.attr(method);
+			}
+
+			// convert the value to a number for number inputs, and for text for backwards compability
+			// allows type="date" and others to be compared as strings
+			if ( /min|max/.test( method ) && ( type === null || /number|range|text/.test( type ) ) ) {
+				value = Number(value);
+			}
+
+			if ( value ) {
+				rules[method] = value;
+			} else if ( type === method && type !== 'range' ) {
+				// exception: the jquery validate 'range' method
+				// does not test for the html5 'range' type
+				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;
+	},
+
+	dataRules: function( element ) {
+		var method, value,
+			rules = {}, $element = $(element);
+		for (method in $.validator.methods) {
+			value = $element.data("rule-" + method.toLowerCase());
+			if ( value !== undefined ) {
+				rules[method] = value;
+			}
+		}
+		return rules;
+	},
+
+	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'], function() {
+			if ( rules[this] ) {
+				rules[this] = Number(rules[this]);
+			}
+		});
+		$.each(['rangelength', 'range'], function() {
+			var parts;
+			if ( rules[this] ) {
+				if ( $.isArray(rules[this]) ) {
+					rules[this] = [Number(rules[this][0]), Number(rules[this][1])];
+				} else if ( typeof rules[this] === "string" ) {
+					parts = rules[this].split(/[\s,]+/);
+					rules[this] = [Number(parts[0]), Number(parts[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;
+			}
+		}
+
+		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 $.trim(value).length > 0;
+		},
+
+		// http://docs.jquery.com/Plugins/Validation/Methods/email
+		email: function( value, element ) {
+			// contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/
+			return this.optional(element) || /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/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?|s?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})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value);
+		},
+
+		// http://docs.jquery.com/Plugins/Validation/Methods/date
+		date: function( value, element ) {
+			return this.optional(element) || !/Invalid|NaN/.test(new Date(value).toString());
+		},
+
+		// http://docs.jquery.com/Plugins/Validation/Methods/dateISO
+		dateISO: function( value, element ) {
+			return this.optional(element) || /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/.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/minlength
+		minlength: function( value, element, param ) {
+			var length = $.isArray( value ) ? value.length : this.getLength($.trim(value), element);
+			return this.optional(element) || length >= param;
+		},
+
+		// http://docs.jquery.com/Plugins/Validation/Methods/maxlength
+		maxlength: function( value, element, param ) {
+			var length = $.isArray( value ) ? value.length : this.getLength($.trim(value), element);
+			return this.optional(element) || length <= param;
+		},
+
+		// http://docs.jquery.com/Plugins/Validation/Methods/rangelength
+		rangelength: function( value, element, param ) {
+			var length = $.isArray( value ) ? value.length : this.getLength($.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/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);
+			if ( this.settings.onfocusout ) {
+				target.unbind(".validate-equalTo").bind("blur.validate-equalTo", function() {
+					$(element).valid();
+				});
+			}
+			return value === target.val();
+		},
+
+		// http://docs.jquery.com/Plugins/Validation/Methods/remote
+		remote: function( value, element, param ) {
+			if ( this.optional(element) ) {
+				return "dependency-mismatch";
+			}
+
+			var previous = this.previousValue(element);
+			if (!this.settings.messages[element.name] ) {
+				this.settings.messages[element.name] = {};
+			}
+			previous.originalMessage = this.settings.messages[element.name].remote;
+			this.settings.messages[element.name].remote = previous.message;
+
+			param = typeof param === "string" && {url:param} || param;
+
+			if ( previous.old === value ) {
+				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 || response === "true";
+					if ( valid ) {
+						var submitted = validator.formSubmitted;
+						validator.prepareElement(element);
+						validator.formSubmitted = submitted;
+						validator.successList.push(element);
+						delete validator.invalid[element.name];
+						validator.showErrors();
+					} else {
+						var errors = {};
+						var message = response || validator.defaultMessage( element, "remote" );
+						errors[element.name] = previous.message = $.isFunction(message) ? message(value) : message;
+						validator.invalid[element.name] = true;
+						validator.showErrors(errors);
+					}
+					previous.valid = valid;
+					validator.stopRequest(element, valid);
+				}
+			}, param));
+			return "pending";
+		}
+
+	}
+
+});
+
+// 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();
+				}
+				pendingRequests[port] = ajax.apply(this, arguments);
+				return pendingRequests[port];
+			}
+			return ajax.apply(this, arguments);
+		};
+	}
+}(jQuery));
+
+// provides delegate(type: String, delegate: Selector, handler: Callback) plugin for easier event delegation
+// handler is only called when $(event.target).is(delegate), in the scope of the jquery-object for event.target
+(function($) {
+	$.extend($.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));