/*
 * jQuery validation plug-in 1.5.5
 *
 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
 * http://docs.jquery.com/Plugins/Validation
 *
 * Copyright (c) 2006 - 2008 Jörn Zaefferer
 *
 * $Id: jquery.validate.js 6403 2009-06-17 14:27:16Z joern.zaefferer $
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */

(function($) {

    $.extend($.fn, {
	// http://docs.jquery.com/Plugins/Validation/validate
	validate: function( options ) {

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

	    // check if a validator for this form was already created
	    var validator = $.data(this[0], 'validator');
	    if ( validator ) {
		return validator;
	    }
		
	    validator = new $.validator( options, this[0] );
	    $.data(this[0], 'validator', validator);
		
	    if ( validator.settings.onsubmit ) {
		
		// allow suppresing validation by adding a cancel class to the submit button
		this.find("input, button").filter(".cancel").click(function() {
		    validator.cancelSubmit = true;
		});
			
		// when a submitHandler is used, capture the submitting button
		if (validator.settings.submitHandler) {
		    this.find("input, button").filter(":submit").click(function() {
			validator.submitButton = this;
		    });
		}
		
		// validate the form on submit
		this.submit( function( event ) {
		    if ( validator.settings.debug )
		    // prevent form submit to be able to see console output
			event.preventDefault();
					
		    function handle() {
			if ( validator.settings.submitHandler ) {
			    if (validator.submitButton) {
				// insert a hidden input as a replacement for the missing submit button
				var hidden = $("<input type='hidden'/>").attr("name", validator.submitButton.name).val(validator.submitButton.value).appendTo(validator.currentForm);
			    }
			    validator.settings.submitHandler.call( validator, validator.currentForm );
			    if (validator.submitButton) {
				// and clean up afterwards; thanks to no-block-scope, hidden can be referenced
				hidden.remove();
			    }
			    return false;
			}
			return true;
		    }
					
		    // prevent submit for invalid forms or custom submit handlers
		    if ( validator.cancelSubmit ) {
			validator.cancelSubmit = false;
			return handle();
		    }
		    if ( validator.form() ) {
			if ( validator.pendingRequest ) {
			    validator.formSubmitted = true;
			    return false;
			}
			return handle();
		    } else {
			validator.focusInvalid();
			return false;
		    }
		});
	    }
		
	    return validator;
	},
	// http://docs.jquery.com/Plugins/Validation/valid
	valid: function() {
	    if ( $(this[0]).is('form')) {
		return this.validate().form();
	    } else {
		var valid = true;
		var validator = $(this[0].form).validate();
		this.each(function() {
		    valid &= validator.element(this);
		});
		return valid;
	    }
	},
	// attributes: space seperated list of attributes to retrieve and remove
	removeAttrs: function(attributes) {
	    var result = {},
	    $element = this;
	    $.each(attributes.split(/\s/), function(index, value) {
		result[value] = $element.attr(value);
		$element.removeAttr(value);
	    });
	    return result;
	},
	// http://docs.jquery.com/Plugins/Validation/rules
	rules: function(command, argument) {
	    var element = this[0];
		
	    if (command) {
		var settings = $.data(element.form, 'validator').settings;
		var staticRules = settings.rules;
		var existingRules = $.validator.staticRules(element);
		switch(command) {
		    case "add":
			$.extend(existingRules, $.validator.normalizeRule(argument));
			staticRules[element.name] = existingRules;
			if (argument.messages)
			    settings.messages[element.name] = $.extend( settings.messages[element.name], argument.messages );
			break;
		    case "remove":
			if (!argument) {
			    delete staticRules[element.name];
			    return existingRules;
			}
			var filtered = {};
			$.each(argument.split(/\s/), function(index, method) {
			    filtered[method] = existingRules[method];
			    delete existingRules[method];
			});
			return filtered;
		}
	    }
		
	    var data = $.validator.normalizeRules(
	    $.extend(
	    {},
	    $.validator.metadataRules(element),
	    $.validator.classRules(element),
	    $.validator.attributeRules(element),
	    $.validator.staticRules(element)
	), element);
		
	    // make sure required is at front
	    if (data.required) {
		var param = data.required;
		delete data.required;
		data = $.extend({required: param}, data);
	    }
		
	    return data;
	}
    });

    // Custom selectors
    $.extend($.expr[":"], {
	// http://docs.jquery.com/Plugins/Validation/blank
	blank: function(a) {return !$.trim(a.value);},
	// http://docs.jquery.com/Plugins/Validation/filled
	filled: function(a) {return !!$.trim(a.value);},
	// http://docs.jquery.com/Plugins/Validation/unchecked
	unchecked: function(a) {return !a.checked;}
    });

    // constructor for validator
    $.validator = function( options, form ) {
	this.settings = $.extend( {}, $.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: "",
	    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(validClass);
	    },
	    unhighlight: function( element, errorClass, validClass ) {
		$(element).removeClass(errorClass).addClass(validClass);
	    }
	},

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

	messages: {
	    required: "This field is required.",
	    remote: "Please fix this field.",
	    email: "Please enter a valid email address.",
	    url: "Please enter a valid URL.",
	    date: "Please enter a valid date.",
	    dateISO: "Please enter a valid date (ISO).",
	    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, :password, :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/Validation/Validator/form
	    form: function() {
		this.checkForm();
		$.extend(this.submitted, this.errorMap);
		this.invalid = $.extend({}, this.errorMap);
		if (!this.valid())
		    $(this.currentForm).triggerHandler("invalid-form", [this]);
		this.showErrors();
		return this.valid();
	    },
		
	    checkForm: function() {
		this.prepareForm();
		for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
		    this.check( elements[i] );
		}
		return this.valid();
	    },
		
	    // http://docs.jquery.com/Plugins/Validation/Validator/element
	    element: function( element ) {
		element = this.clean( element );
		this.lastElement = element;
		this.prepareElement( element );
		this.currentElements = $(element);
		var result = this.check( element );
		if ( result ) {
		    delete this.invalid[element.name];
		} else {
		    this.invalid[element.name] = true;
		}
		if ( !this.numberOfInvalids() ) {
		    // Hide error containers on last error
		    this.toHide = this.toHide.add( this.containers );
		}
		this.showErrors();
		return result;
	    },

	    // http://docs.jquery.com/Plugins/Validation/Validator/showErrors
	    showErrors: function(errors) {
		if(errors) {
		    // add items to error list and map
		    $.extend( this.errorMap, errors );
		    this.errorList = [];
		    for ( var name in errors ) {
			this.errorList.push({
			    message: errors[name],
			    element: this.findByName(name)[0]
			});
		    }
		    // remove items from success list
		    this.successList = $.grep( this.successList, function(element) {
			return !(element.name in errors);
		    });
		}
		this.settings.showErrors
		    ? this.settings.showErrors.call( this, this.errorMap, this.errorList )
		: this.defaultShowErrors();
	    },
		
	    // http://docs.jquery.com/Plugins/Validation/Validator/resetForm
	    resetForm: function() {
		if ( $.fn.resetForm )
		    $( this.currentForm ).resetForm();
		this.submitted = {};
		this.prepareForm();
		this.hideErrors();
		this.elements().removeClass( this.settings.errorClass );
	    },
		
	    numberOfInvalids: function() {
		return this.objectLength(this.invalid);
	    },
		
	    objectLength: function( obj ) {
		var count = 0;
		for ( var i in obj )
		    count++;
		return count;
	    },
		
	    hideErrors: function() {
		this.addWrapper( this.toHide ).hide();
	    },
		
	    valid: function() {
		return this.size() == 0;
	    },
		
	    size: function() {
		return this.errorList.length;
	    },
		
	    focusInvalid: function() {
		if( this.settings.focusInvalid ) {
		    try {
			$(this.findLastActive() || this.errorList.length && this.errorList[0].element || []).filter(":visible").focus();
		    } catch(e) {
			// ignore IE throwing errors when focusing hidden elements
		    }
		}
	    },
		
	    findLastActive: function() {
		var lastActive = this.lastActive;
		return lastActive && $.grep(this.errorList, function(n) {
		    return n.element.name == lastActive.name;
		}).length == 1 && lastActive;
	    },
		
	    elements: function() {
		var validator = this,
		rulesCache = {};
			
		// select all valid inputs inside the form (no submit or reset buttons)
		// workaround $Query([]).add until http://dev.jquery.com/ticket/2114 is solved
		return $([]).add(this.currentForm.elements)
		.filter(":input")
		.not(":submit, :reset, :image, [disabled]")
		.not( this.settings.ignore )
		.filter(function() {
			!this.name && validator.settings.debug && window.console && console.error( "%o has no name assigned", this);
			
		    // select only the first element for each name, and only those with rules specified
		    if ( this.name in rulesCache || !validator.objectLength($(this).rules()) )
			return false;
				
		    rulesCache[this.name] = true;
		    return true;
		});
	    },
		
	    clean: function( selector ) {
		return $( selector )[0];
	    },
		
	    errors: function() {
		return $( this.settings.errorElement + "." + this.settings.errorClass, this.errorContext );
	    },
		
	    reset: function() {
		this.successList = [];
		this.errorList = [];
		this.errorMap = {};
		this.toShow = $([]);
		this.toHide = $([]);
		this.formSubmitted = false;
		this.currentElements = $([]);
	    },
		
	    prepareForm: function() {
		this.reset();
		this.toHide = this.errors().add( this.containers );
	    },
		
	    prepareElement: function( element ) {
		this.reset();
		this.toHide = this.errorsFor(element);
	    },
	
	    check: function( element ) {
		element = this.clean( element );
			
		// if radio/checkbox, validate first element in group instead
		if (this.checkable(element)) {
		    element = this.findByName( element.name )[0];
		}
			
		var rules = $(element).rules();
		var dependencyMismatch = false;
		for( method in rules ) {
		    var rule = { method: method, parameters: rules[method] };
		    try {
			var result = $.validator.methods[method].call( this, element.value.replace(/\r/g, ""), element, rule.parameters );
					
			// if a method indicates that the field is optional and therefore valid,
			// don't mark it as valid when there are no other rules
			if ( result == "dependency-mismatch" ) {
			    dependencyMismatch = true;
			    continue;
			}
			dependencyMismatch = false;
					
			if ( result == "pending" ) {
			    this.toHide = this.toHide.not( this.errorsFor(element) );
			    return;
			}
					
			if( !result ) {
			    this.formatAndAdd( element, rule );
			    return false;
			}
		    } catch(e) {
			this.settings.debug && window.console && console.log("exception occured when checking element " + element.id
			    + ", check the '" + rule.method + "' method");
			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 );
		if ( typeof message == "function" )
		    message = message.call(this, rule.parameters, element);
		this.errorList.push({
		    message: message,
		    element: element
		});
		this.errorMap[element.name] = message;
		this.submitted[element.name] = message;
	    },
		
	    addWrapper: function(toToggle) {
		if ( this.settings.wrapper )
		    toToggle = toToggle.add( toToggle.parent( this.settings.wrapper ) );
		return toToggle;
	    },
		
	    defaultShowErrors: function() {
		for ( var i = 0; this.errorList[i]; i++ ) {
		    var error = this.errorList[i];
		    this.settings.highlight && this.settings.highlight.call( this, error.element, this.settings.errorClass, this.settings.validClass );
		    this.showLabel( error.element, error.message );
		}
		if( this.errorList.length ) {
		    this.toShow = this.toShow.add( this.containers );
		}
		if (this.settings.success) {
		    for ( var i = 0; this.successList[i]; i++ ) {
			this.showLabel( this.successList[i] );
		    }
		}
		if (this.settings.unhighlight) {
		    for ( var i = 0, elements = this.validElements(); elements[i]; i++ ) {
			this.settings.unhighlight.call( this, elements[i], this.settings.errorClass, this.settings.validClass );
		    }
		}
		this.toHide = this.toHide.not( this.toShow );
		this.hideErrors();
		this.addWrapper( this.toShow ).show();
	    },
		
	    validElements: function() {
		return this.currentElements.not(this.invalidElements());
	    },
		
	    invalidElements: function() {
		return $(this.errorList).map(function() {
		    return this.element;
		});
	    },
		
	    showLabel: function(element, message) {
		var label = this.errorsFor( element );
		if ( label.length ) {
		    // refresh error/success class
		    label.removeClass().addClass( this.settings.errorClass );
			
		    // check if we have a generated label, replace the message then
		    label.attr("generated") && label.html(message);
		} else {
		    // create label
		    label = $("<" + this.settings.errorElement + "/>")
		    .attr({"for":  this.idOrName(element), generated: true})
		    .addClass(this.settings.errorClass)
		    .html(message || "");
		    if ( this.settings.wrapper ) {
			// make sure the element is visible, even in IE
			// actually showing the wrapped element is handled elsewhere
			label = label.hide().show().wrap("<" + this.settings.wrapper + "/>").parent();
		    }
		    if ( !this.labelContainer.append(label).length )
			this.settings.errorPlacement
			? this.settings.errorPlacement(label, $(element) )
		    : label.insertAfter(element);
		}
		if ( !message && this.settings.success ) {
		    label.text("");
		    typeof this.settings.success == "string"
			? label.addClass( this.settings.success )
		    : this.settings.success( label );
		}
		this.toShow = this.toShow.add(label);
	    },
		
	    errorsFor: function(element) {
		return this.errors().filter("[for='" + this.idOrName(element) + "']");
	    },
		
	    idOrName: function(element) {
		return this.groups[element.name] || (this.checkable(element) ? element.name : element.id || element.name);
	    },

	    checkable: function( element ) {
		return /radio|checkbox/i.test(element.type);
	    },
		
	    findByName: function( name ) {
		// select by name and filter by form for performance over form.find("[name=...]")
		var form = this.currentForm;
		return $(document.getElementsByName(name)).map(function(index, element) {
		    return element.form == form && element.name == name && element  || null;
		});
	    },
		
	    getLength: function(value, element) {
		switch( element.nodeName.toLowerCase() ) {
		    case 'select':
			return $("option:selected", element).length;
		    case 'input':
			if( this.checkable( element) )
			    return this.findByName(element.name).filter(':checked').length;
		    }
		    return value.length;
		},
	
		depend: function(param, element) {
		    return this.dependTypes[typeof param]
			? this.dependTypes[typeof param](param, element)
		    : true;
		},
	
		dependTypes: {
		    "boolean": function(param, element) {
			return param;
		    },
		    "string": function(param, element) {
			return !!$(param, element.form).length;
		    },
		    "function": function(param, element) {
			return param(element);
		    }
		},
		
		optional: function(element) {
		    return !$.validator.methods.required.call(this, $.trim(element.value), element) && "dependency-mismatch";
		},
		
		startRequest: function(element) {
		    if (!this.pending[element.name]) {
			this.pendingRequest++;
			this.pending[element.name] = true;
		    }
		},
		
		stopRequest: function(element, valid) {
		    this.pendingRequest--;
		    // sometimes synchronization fails, make sure pendingRequest is never < 0
		    if (this.pendingRequest < 0)
			this.pendingRequest = 0;
		    delete this.pending[element.name];
		    if ( valid && this.pendingRequest == 0 && this.formSubmitted && this.form() ) {
			$(this.currentForm).submit();
		    } else if (!valid && this.pendingRequest == 0 && this.formSubmitted) {
			$(this.currentForm).triggerHandler("invalid-form", [this]);
		    }
		},
		
		previousValue: function(element) {
		    return $.data(element, "previousValue") || $.data(element, "previousValue", previous = {
			old: null,
			valid: true,
			message: this.defaultMessage( element, "remote" )
		    });
		}
		
	    },
	
	    classRuleSettings: {
		required: {required: true},
		email: {email: true},
		url: {url: true},
		date: {date: true},
		dateISO: {dateISO: true},
		dateDE: {dateDE: true},
		number: {number: true},
		numberDE: {numberDE: true},
		digits: {digits: true},
		creditcard: {creditcard: true}
	    },
	
	    addClassRules: function(className, rules) {
		className.constructor == String ?
		    this.classRuleSettings[className] = rules :
		    $.extend(this.classRuleSettings, className);
	    },
	
	    classRules: function(element) {
		var rules = {};
		var classes = $(element).attr('class');
		classes && $.each(classes.split(' '), function() {
		    if (this in $.validator.classRuleSettings) {
			$.extend(rules, $.validator.classRuleSettings[this]);
		    }
		});
		return rules;
	    },
	
	    attributeRules: function(element) {
		var rules = {};
		var $element = $(element);
		
		for (method in $.validator.methods) {
		    var value = $element.attr(method);
		    if (value) {
			rules[method] = value;
		    }
		}
		
		// maxlength may be returned as -1, 2147483647 (IE) and 524288 (safari) for text inputs
		if (rules.maxlength && /-1|2147483647|524288/.test(rules.maxlength)) {
		    delete rules.maxlength;
		}
		
		return rules;
	    },
	
	    metadataRules: function(element) {
		if (!$.metadata) return {};
		
		var meta = $.data(element.form, 'validator').settings.meta;
		return meta ?
		    $(element).metadata()[meta] :
		    $(element).metadata();
	    },
	
	    staticRules: function(element) {
		var rules = {};
		var validator = $.data(element.form, 'validator');
		if (validator.settings.rules) {
		    rules = $.validator.normalizeRule(validator.settings.rules[element.name]) || {};
		}
		return rules;
	    },
	
	    normalizeRules: function(rules, element) {
		// handle dependency check
		$.each(rules, function(prop, val) {
		    // ignore rule when param is explicitly false, eg. required:false
		    if (val === false) {
			delete rules[prop];
			return;
		    }
		    if (val.param || val.depends) {
			var keepRule = true;
			switch (typeof val.depends) {
			    case "string":
				keepRule = !!$(val.depends, element.form).length;
				break;
			    case "function":
				keepRule = val.depends.call(element, element);
				break;
			}
			if (keepRule) {
			    rules[prop] = val.param !== undefined ? val.param : true;
			} else {
			    delete rules[prop];
			}
		    }
		});
		
		// evaluate parameters
		$.each(rules, function(rule, parameter) {
		    rules[rule] = $.isFunction(parameter) ? parameter(element) : parameter;
		});
		
		// clean number parameters
		$.each(['minlength', 'maxlength', 'min', 'max'], function() {
		    if (rules[this]) {
			rules[this] = Number(rules[this]);
		    }
		});
		$.each(['rangelength', 'range'], function() {
		    if (rules[this]) {
			rules[this] = [Number(rules[this][0]), Number(rules[this][1])];
		    }
		});
		
		if ($.validator.autoCreateRanges) {
		    // auto-create ranges
		    if (rules.min && rules.max) {
			rules.range = [rules.min, rules.max];
			delete rules.min;
			delete rules.max;
		    }
		    if (rules.minlength && rules.maxlength) {
			rules.rangelength = [rules.minlength, rules.maxlength];
			delete rules.minlength;
			delete rules.maxlength;
		    }
		}
		
		// To support custom messages in metadata ignore rule methods titled "messages"
		if (rules.messages) {
		    delete rules.messages
		}
		
		return rules;
	    },
	
	    // Converts a simple string to a {string: true} rule, e.g., "required" to {required:true}
	    normalizeRule: function(data) {
		if( typeof data == "string" ) {
		    var transformed = {};
		    $.each(data.split(/\s/), function() {
			transformed[this] = true;
		    });
		    data = transformed;
		}
		return data;
	    },
	
	    // http://docs.jquery.com/Plugins/Validation/Validator/addMethod
	    addMethod: function(name, method, message) {
		$.validator.methods[name] = method;
		$.validator.messages[name] = message || $.validator.messages[name];
		if (method.length < 3) {
		    $.validator.addClassRules(name, $.validator.normalizeRule(name));
		}
	    },

	    methods: {

		// http://docs.jquery.com/Plugins/Validation/Methods/required
		required: function(value, element, param) {
		    // check if dependency is met
		    if ( !this.depend(param, element) )
			return "dependency-mismatch";
		    switch( element.nodeName.toLowerCase() ) {
			case 'select':
			    var options = $("option:selected", element);
			    return options.length > 0 && ( element.type == "select-multiple" || ($.browser.msie && !(options[0].attributes['value'].specified) ? options[0].text : options[0].value).length > 0);
			case 'input':
			    if ( this.checkable(element) )
				return this.getLength(value, element) > 0;
			    default:
			    return $.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] = {};
		    this.settings.messages[element.name].remote = typeof previous.message == "function" ? previous.message(value) : previous.message;
			
		    param = typeof param == "string" && {url:param} || param;
			
		    if ( previous.old !== value ) {
			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) {
				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 = {};
				    errors[element.name] = previous.message = response || validator.defaultMessage( element, "remote" );
				    validator.showErrors(errors);
				}
				previous.valid = valid;
				validator.stopRequest(element, valid);
			    }
			}, param));
			return "pending";
		    } else if( this.pending[element.name] ) {
			return "pending";
		    }
		    return previous.valid;
		},

		// 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/dateDE
		    dateDE: function(value, element) {
			return this.optional(element) || /^\d\d?\.\d\d?\.\d\d\d?\d?$/.test(value);
		    },
	
		    // http://docs.jquery.com/Plugins/Validation/Methods/number
		    number: function(value, element) {
			return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value);
		    },
	
		    // http://docs.jquery.com/Plugins/Validation/Methods/numberDE
		    numberDE: function(value, element) {
			return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:\.\d{3})+)(?:,\d+)?$/.test(value);
		    },
		
		    // http://docs.jquery.com/Plugins/Validation/Methods/digits
		    digits: function(value, element) {
			return this.optional(element) || /^\d+$/.test(value);
		    },
		
		    codePostal: function (value, element) {
			return this.optional(element) || /^[a-zA-Z]\d[a-zA-Z]\d[a-zA-Z]\d$/.test(value) || value == "n/a";
		    },

		    // http://docs.jquery.com/Plugins/Validation/Methods/creditcard
		    // based on http://en.wikipedia.org/wiki/Luhn
		    creditcard: function(value, element) {
			if ( this.optional(element) )
			    return "dependency-mismatch";
			// accept only digits and dashes
			if (/[^0-9-]+/.test(value))
			    return false;
			var nCheck = 0,
			nDigit = 0,
			bEven = false;

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

			for (n = value.length - 1; n >= 0; n--) {
			    var cDigit = value.charAt(n);
			    var nDigit = parseInt(cDigit, 10);
			    if (bEven) {
				if ((nDigit *= 2) > 9)
				    nDigit -= 9;
			    }
			    nCheck += nDigit;
			    bEven = !bEven;
			}

			return (nCheck % 10) == 0;
		    },
		
		    // http://docs.jquery.com/Plugins/Validation/Methods/accept
		    accept: function(value, element, param) {
			param = typeof param == "string" ? param.replace(/,/g, '|') : "png|jpe?g|gif";
			return this.optional(element) || value.match(new RegExp(".(" + param + ")$", "i")); 
		    },
		
		    // http://docs.jquery.com/Plugins/Validation/Methods/equalTo
		    equalTo: function(value, element, param) {
			return value == $(param).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 ajax = $.ajax;
	    var pendingRequests = {};
	    $.ajax = function(settings) {
		// create settings for compatibility with ajaxSetup
		settings = $.extend(settings, $.extend({}, $.ajaxSettings, settings));
		var port = settings.port;
		if (settings.mode == "abort") {
		    if ( pendingRequests[port] ) {
			pendingRequests[port].abort();
		    }
		    return (pendingRequests[port] = ajax.apply(this, arguments));
		}
		return ajax.apply(this, arguments);
	    };
	})(jQuery);

	// provides cross-browser focusin and focusout events
	// IE has native support, in other browsers, use event caputuring (neither bubbles)

	// provides delegate(type: String, delegate: Selector, handler: Callback) plugin for easier event delegation
	// handler is only called when $(event.target).is(delegate), in the scope of the jquery-object for event.target

	// provides triggerEvent(type: String, target: Element) to trigger delegated events
	;(function($) {
	    $.each({
		focus: 'focusin',
		blur: 'focusout'	
	    }, function( original, fix ){
		$.event.special[fix] = {
		    setup:function() {
			if ( $.browser.msie ) return false;
			this.addEventListener( original, $.event.special[fix].handler, true );
		    },
		    teardown:function() {
			if ( $.browser.msie ) return false;
			this.removeEventListener( original,
			$.event.special[fix].handler, true );
		    },
		    handler: function(e) {
			arguments[0] = $.event.fix(e);
			arguments[0].type = fix;
			return $.event.handle.apply(this, arguments);
		    }
		};
	    });
	    $.extend($.fn, {
		delegate: function(type, delegate, handler) {
		    return this.bind(type, function(event) {
			var target = $(event.target);
			if (target.is(delegate)) {
			    return handler.apply(target, arguments);
			}
		    });
		},
		triggerEvent: function(type, target) {
		    return this.triggerHandler(type, [$.event.fix({ type: type, target: target })]);
		}
	    })
	})(jQuery);