/* Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) 
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * $LastChangedDate: 2007-06-19 20:23:36 -0500 (Tue, 19 Jun 2007) $
 * $Rev: 2110 $
 *
 * Version 2.1
 */

(function($){

$.fn.bgIframe = $.fn.bgiframe = function(s) {
	// This is only for IE6
	if ( $.browser.msie && parseInt($.browser.version) <= 6 ) {
		s = $.extend({
			top     : 'auto', // auto == .currentStyle.borderTopWidth
			left    : 'auto', // auto == .currentStyle.borderLeftWidth
			width   : 'auto', // auto == offsetWidth
			height  : 'auto', // auto == offsetHeight
			opacity : true,
			src     : 'javascript:false;'
		}, s || {});
		var prop = function(n){return n&&n.constructor==Number?n+'px':n;},
		    html = '<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+
		               'style="display:block;position:absolute;z-index:-1;'+
			               (s.opacity !== false?'filter:Alpha(Opacity=\'0\');':'')+
					       'top:'+(s.top=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')':prop(s.top))+';'+
					       'left:'+(s.left=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')':prop(s.left))+';'+
					       'width:'+(s.width=='auto'?'expression(this.parentNode.offsetWidth+\'px\')':prop(s.width))+';'+
					       'height:'+(s.height=='auto'?'expression(this.parentNode.offsetHeight+\'px\')':prop(s.height))+';'+
					'"/>';
		return this.each(function() {
			if ( $('> iframe.bgiframe', this).length == 0 )
				this.insertBefore( document.createElement(html), this.firstChild );
		});
	}
	return this;
};

// Add browser.version if it doesn't exist
if (!$.browser.version)
	$.browser.version = navigator.userAgent.toLowerCase().match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/)[1];

})(jQuery);

/*
 * Metadata - jQuery plugin for parsing metadata from elements
 *
 * Copyright (c) 2006 John Resig, Yehuda Katz, 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
 *
 * Revision: $Id: metadata.js 1631 2007-04-05 16:02:19Z joern $
 *
 */

(function($) {
	// settings
	$.meta = {
	  type: "class",
	  name: "metadata",
	  setType: function(type,name){
	    this.type = type;
	    this.name = name;
	  },
	  cre: /({.*})/,
	  single: 'metadata'
	};
	
	// reference to original setArray()
	var setArray = $.fn.setArray;
	
	// define new setArray()
	$.fn.setArray = function(arr){
	    return setArray.apply( this, arguments ).each(function(){
	      if ( this.nodeType == 9 || $.isXMLDoc(this) || this.metaDone ) return;
	      
	      var data = "{}";
	      
	      if ( $.meta.type == "class" ) {
	        var m = $.meta.cre.exec( this.className );
	        if ( m )
	          data = m[1];
	      } else if ( $.meta.type == "elem" ) {
	      	if( !this.getElementsByTagName ) return;
	        var e = this.getElementsByTagName($.meta.name);
	        if ( e.length )
	          data = $.trim(e[0].innerHTML);
	      } else if ( this.getAttribute != undefined ) {
	        var attr = this.getAttribute( $.meta.name );
	        if ( attr )
	          data = attr;
	      }
	      
	      if ( !/^{/.test( data ) )
	        data = "{" + data + "}";
	
	      eval("data = " + data);
	
	      if ( $.meta.single )
	        this[ $.meta.single ] = data;
	      else
	        $.extend( this, data );
	      
	      this.metaDone = true;
	    });
	};
	
	/**
	 * Returns the metadata object for the first member of the jQuery object.
	 *
	 * @name data
	 * @descr Returns element's metadata object
	 * @type jQuery
	 * @cat Plugins/Metadata
	 */
	$.fn.data = function() {
	  return this[0][$.meta.single];
	};
})(jQuery);


/*
 * Form Validation: jQuery form validation plug-in v1.0 final
 *
 * http://bassistance.de/jquery-plugins/jquery-plugin-validation/
 *
 * Copyright (c) 2006 Jörn Zaefferer
 *
 * $Id: jquery.validate.js 2071 2007-06-13 21:29:55Z 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
 */

jQuery.extend(jQuery.fn, {
	validate: function( options ) {
		var validator = new jQuery.validator( options, this[0] );
		
		if ( validator.settings.onsubmit ) {
		
			// allow suppresing validation by adding a cancel class to the submit button
			this.find("input.cancel:submit").click(function() {
				this.form.cancel = 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();
					
				// prevent submit for invalid forms or custom submit handlers
				if ( this.cancel || validator.form() ) {
					this.cancel = false;
					if ( validator.settings.submitHandler ) {
						validator.settings.submitHandler( validator.currentForm );
						return false;
					}
					return true;
				} else {
					validator.focusInvalid();
					return false;
				}
			});
		}
		
		return validator;
	},
	// destructive add
	push: function( t ) {
		return this.setArray( jQuery.merge( this.get(), t ) );
	}
});


jQuery.extend(jQuery.expr[":"], {
	blank: "!jQuery.trim(a.value)",
	filled: "!!jQuery.trim(a.value)",
	unchecked: "!a.checked"
});


String.format = function(source, params) {
	if ( arguments.length == 1 ) 
		return function( param ) {
			return String.format( source, param );
		};
	if ( arguments.length > 2 )
		params = jQuery.makeArray(arguments).slice(1);
	if ( params.constructor != Array )
		params = [ params ];
	jQuery.each(params, function(i, n) {
		source = source.replace(new RegExp("\\{" + i + "\\}"), n);
	});
	return source;
};

// constructor for validator
jQuery.validator = function( options, form ) {
	this.settings = jQuery.extend( {}, jQuery.validator.defaults, options );

	this.currentForm = form;
	this.labelContainer = this.settings.errorLabelContainer;
	this.errorContext = this.labelContainer.length && this.labelContainer || jQuery(form);
	this.containers = this.settings.errorContainer.add( this.settings.errorLabelContainer );
	this.submitted = {};
	this.rulesCache = {};
	this.reset();
	this.refresh();
};

jQuery.extend(jQuery.validator, {

	defaults: {
		messages: {},
		errorClass: "error",
		errorElement: "label",
		focusInvalid: true,
		errorContainer: jQuery( [] ),
		errorLabelContainer: jQuery( [] ),
		onsubmit: true,
		ignore: []
	},

	setDefaults: function(settings) {
		jQuery.extend( jQuery.validator.defaults, settings );
	},

	messages: {
		required: "This field is required.",
		email: "Please enter a valid email address.",
		url: "Please enter a valid URL.",
		date: "Please enter a valid date.",
		dateISO: "Please enter a valid date (ISO).",
		dateDE: "Bitte geben Sie ein gültiges Datum ein.",
		number: "Please enter a valid number.",
		numberDE: "Bitte geben Sie eine Nummer ein.",
		digits: "Please enter only digits",
		creditcard: "Please enter a valid credit card.",
		equalTo: "Please enter the same value again.",
		accept: "Please enter a value with a valid extension.",
		maxLength: String.format("Please enter a value no longer than {0} characters."),
		minLength: String.format("Please enter a value of at least {0} characters."),
		rangeLength: String.format("Please enter a value between {0} and {1} characters long."),
		rangeValue: String.format("Please enter a value between {0} and {1}."),
		maxValue: String.format("Please enter a value less than or equal to {0}."),
		minValue: String.format("Please enter a value greater than or equal to {0}.")
	},
	
	prototype: {

		form: function() {
			this.prepareForm();
			for ( var i = 0, element; element = this.elements[i]; i++ ) {
				this.check( element );
			}
			jQuery.extend(this.submitted, this.errorMap);
			return this.valid();
		},

		element: function( element ) {
			element = this.clean( element );
			this.lastElement = element;
			this.prepareElement( element );
			var result = this.check( element );
			this.showErrors();
			return result;
		},

		showErrors: function(errors) {
			if(errors) {
				jQuery.extend( this.errorMap, errors );
				for ( name in errors ) {
					this.errorList.push({
						message: errors[name],
						element: jQuery("[@name=" + name + "]:first", this.currentForm)[0]
					});
				}
			}
			this.settings.showErrors
				? this.settings.showErrors.call( this, this.errorMap, this.errorList )
				: this.defaultShowErrors();
		},
		
		resetForm: function() {
			if( jQuery.fn.resetForm )
				jQuery( this.currentForm ).resetForm();
			this.prepareForm();
			this.hideErrors();
			this.elements.removeClass( this.settings.errorClass );
		},
		
		valid: function() {
			this.showErrors();
			return this.errorList.length == 0;
		},
		
		focusInvalid: function() {
			if( this.settings.focusInvalid ) {
				try {
					jQuery(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 && jQuery.grep(this.errorList, function(n) {
				return n.element.name == lastActive.name;
			}).length == 1 && lastActive;
		},
		
		refresh: function() {
			var validator = this;
			validator.rulesCache = {};
			
			// select all valid inputs inside the form (no submit or reset buttons)
			this.elements = jQuery(this.currentForm)
			.find("input, select, textarea, button")
			.not(":submit")
			.not(":reset")
			.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 validator.rulesCache || !validator.rules(this).length )
					return false;
				
				validator.rulesCache[this.name] = validator.rules(this);
				return true;
			});
			
			
			// and listen for focus events to save reference to last focused element
			this.elements.focus(function() {
				validator.lastActive = this;
				
				// hide error label and remove error class on focus if enabled
				if ( validator.settings.focusCleanup ) {
					jQuery(this).removeClass( validator.settings.errorClass );
					validator.errorsFor(this).hide();
				}
			});
		},
		
		clean: function( selector ) {
			return jQuery( selector )[0];
		},
		
		errors: function() {
			return jQuery( this.settings.errorElement + "." + this.settings.errorClass, this.errorContext );
		},
		
		reset: function( element ) {
			this.successList = [];
			this.errorList = [];
			this.errorMap = {};
			this.toShow = jQuery( [] );
			this.toHide = jQuery( [] );
		},
		
		prepareForm: function() {
			this.reset();
			this.submitted = {};
			this.toHide = this.errors().push( this.containers );
		},
		
		prepareElement: function( element ) {
			this.reset();
			this.toHide = this.errorsFor( this.clean(element) );
		},
	
		check: function( element ) {
			element = this.clean( element );
			jQuery( element ).removeClass( this.settings.errorClass );
			//var rules = this.rules( element );
			var rules = this.rulesCache[ element.name ];
			for( var i = 0, rule; rule = rules[i++]; ) {
				try {
					var result = jQuery.validator.methods[rule.method].call( this, jQuery.trim(element.value), element, rule.parameters );
					if( result === -1 )
						break;
					if( !result ) {
						jQuery( element ).addClass( this.settings.errorClass );
						this.formatAndAdd( rule, element);
						return false;
					}
				} catch(e) {
					this.settings.debug && window.console && console.error("exception occured when checking element " + element.id
						 + ", check the '" + rule.method + "' method");
					throw e;
				}
			}
			// show the label for valid elements if success callback is configured
			if ( rules.length && this.settings.success )
				this.successList.push(element);
			return true;
		},
		
		message: function( id, rule ) {
			var m = this.settings.messages[id];
			return m && (m.constructor == String
				? m
				: m[rule.method]);
		},
		
		formatAndAdd: function( rule, element) {
			var message = 
				this.message(element.name, rule)
				|| element.title
				|| jQuery.validator.messages[rule.method]
				|| "<strong>Warning: No message defined for " + element.name + "</strong>";
			if ( typeof message == "function" ) 
				message = message.call(this, rule.parameters, element);
			this.errorList.push({
				message: message,
				element: element
			});
			this.errorMap[element.name] = message;
			this.submitted[element.name] = message;
		},
		
		addWrapper: function(toToggle) {
			if ( this.settings.wrapper )
				toToggle.push( toToggle.parents( this.settings.wrapper ) );
			return toToggle;
		},
		
		defaultShowErrors: function() {
			for ( var i = 0, error; error = this.errorList[i]; i++ ) {
				this.showLabel( error.element, error.message );
			}
			if( this.errorList.length ) {
				this.toShow.push( this.containers );
			}
			for ( var i = 0, element; element = this.successList[i]; i++ ) {
				this.showLabel( element );
			}
			this.toHide = this.toHide.not( this.toShow );
			this.addWrapper( this.toHide ).hide();
			this.addWrapper( this.toShow ).show();
		},
		
		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
				if( this.settings.overrideErrors || label.attr("generated") ) {
					label.html(message);
				}
			} else {
				// create label
				label = jQuery("<" + 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, jQuery(element) )
						: label.insertAfter(element);
			}
			if ( !message && this.settings.success ) {
				label.text("");
				typeof this.settings.success == "string"
					? label.addClass( this.settings.success )
					: this.settings.success( label );
			}
			this.toShow.push(label);
		},
		
		errorsFor: function(element) {
			return this.errors().filter("[@for=" + this.idOrName(element) + "]");
		},
		
		idOrName: function(element) {
			return this.checkable(element) ? element.name : element.id || element.name;
		},

		rules: function( element ) {
			var data = this.data( element );
			if( !data )
				return [];
			var rules = [];
			// convert a simple string to a {string: true} rule, eg. "required" to {required:true}
			if( typeof data == "string" ) {
				var transformed = {};
				transformed[data] = true;
				data = transformed;
			}
			jQuery.each( data, function(key, value) {
				rules[rules.length] = {
					method: key,
					parameters: value
				};
			} );
			return rules;
		},

		data: function( element ) {
			return this.settings.rules
				? this.settings.rules[ element.name ]
				: this.settings.meta
					? jQuery(element).data()[ this.settings.meta ]
					: jQuery(element).data();
		},
		
		checkable: function( element ) {
			return /radio|checkbox/i.test(element.type);
		},
		
		checkableGroup: function( element ) {
			return jQuery(element.form || document).find('[@name="' + element.name + '"]');
		},
		
		getLength: function(value, element) {
			switch( element.nodeName.toLowerCase() ) {
			case 'select':
				return jQuery("option:selected", element).length;
			case 'input':
				if( this.checkable( element) )
					return this.checkableGroup( element).filter(':checked').length;
			}
			return value.length;
		},
	
		depend: function(param, element) {
			return this.dependTypes[typeof param]
				? this.dependTypes[typeof param](param, element)
				: true;
		},
	
		dependTypes: {
			"boolean": function(param, element) {
				return param;
			},
			"string": function(param, element) {
				return !!jQuery(param, element.form).length;
			},
			"function": function(param, element) {
				return param(element);
			}
		},
		
		required: function(element) {
			return !jQuery.validator.methods.required.call(this, jQuery.trim(element.value), element);
		}
		
	},

	methods: {
		required: function(value, element, param) {
			// check if dependency is met
			if ( !this.depend(param, element) )
				return -1;
			switch( element.nodeName.toLowerCase() ) {
			case 'select':
				var options = jQuery("option:selected", element);
				return options.length > 0 && ( element.type == "select-multiple" || (jQuery.browser.msie && !(options[0].attributes['value'].specified) ? options[0].text : options[0].value).length > 0);
			case 'input':
				if ( this.checkable(element) )
					return this.getLength(value, element) > 0;
			default:
				return value.length > 0;
			}
		},

		minLength: function(value, element, param) {
			return this.required(element) || this.getLength(value, element) >= param;
		},
	
		maxLength: function(value, element, param) {
			return this.required(element) || this.getLength(value, element) <= param;
		},
		
		rangeLength: function(value, element, param) {
			var length = this.getLength(value, element);
			return this.required(element) || ( length >= param[0] && length <= param[1] );
		},
	
		minValue: function( value, element, param ) {
			return this.required(element) || value >= param;
		},

		maxValue: function( value, element, param ) {
			return this.required(element) || value <= param;
		},
		
		rangeValue: function( value, element, param ) {
			return this.required(element) || ( value >= param[0] && value <= param[1] );
		},
		
		email: function(value, element) {
			return this.required(element) || /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/i.test(value);
		},
	
		url: function(value, element) {
			return this.required(element) || /^(https?|ftp):\/\/[A-Z0-9](\.?[A-Z0-9ÄÜÖ][A-Z0-9_\-ÄÜÖ]*)*(\/([A-Z0-9ÄÜÖ][A-Z0-9_\-\.ÄÜÖ]*)?)*(\?([A-Z0-9ÄÜÖ][A-Z0-9_\-\.%\+=&ÄÜÖ]*)?)?$/i.test(value);
		},
        
		date: function(value, element) {
			return this.required(element) || !/Invalid|NaN/.test(new Date(value));
		},
	
		dateISO: function(value, element) {
			return this.required(element) || /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(value);
		},
	
		dateDE: function(value, element) {
			return this.required(element) || /^\d\d?\.\d\d?\.\d\d\d?\d?$/.test(value);
		},
	
		number: function(value, element) {
			return this.required(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value);
		},
	
		numberDE: function(value, element) {
			return this.required(element) || /^-?(?:\d+|\d{1,3}(?:\.\d{3})+)(?:,\d+)?$/.test(value);
		},
		
		digits: function(value, element) {
			return this.required(element) || /^\d+$/.test(value);
		},
	
		creditcard: function(value, element) {
			if ( this.required(element) )
				return true;
			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;
		},
		
		accept: function(value, element, param) {
			param = typeof param == "string" ? param : "png|jpe?g|gif";
			return this.required(element) || value.match(new RegExp(".(" + param + ")$")); 
		},
		
		equalTo: function(value, element, param) {
			return value == jQuery(param).val();
		}
		
	},
	
	addMethod: function(name, method, message) {
		jQuery.validator.methods[name] = method;
		jQuery.validator.messages[name] = message;
	}
});