/*
 * jQuery validation plug-in 1.7
 *
 * 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
 */

var _validation = {methods: {
		displayErrorText: function(fldId,txt){
			if(!$(fldId).next('div.error').html()){
				txt	=	txt?txt:(fldId).attr('title');
				$('<div class="error">'+txt+'</div>').insertAfter(fldId).hide().fadeIn();
				
			}
			$(fldId).focus(function() {
				$(this).next('div.error').fadeOut('',function(){$(this).remove();});
			});
		},
		checkable: function( element ) {
			return /radio|checkbox/i.test(element.type);
		},
		checkable: function( element ) {
			return /radio|checkbox/i.test(element.type);
		},
		
		findByName: function( name ) {
			// select by name and filter by form for performance over form.find("[name=...]")
			var form = this.currentForm;
			return $(document.getElementsByName(name)).map(function(index, element) {
				return element.form == form && element.name == name && element  || null;
			});
		},
		
		getLength: function(value, element) {
			switch( element.nodeName.toLowerCase() ) {
			case 'select':
				return $("option:selected", element).length;
			case 'input':
				if( this.checkable( element) )
					return this.findByName(element.name).filter(':checked').length;
			}
			return value.length;
		},
	
		depend: function(param, element) {
			return this.dependTypes[typeof param]
				? this.dependTypes[typeof param](param, element)
				: true;
		},
	
		dependTypes: {
			"boolean": function(param, element) {
				return param;
			},
			"string": function(param, element) {
				return !!$(param, element.form).length;
			},
			"function": function(param, element) {
				return param(element);
			}
		},
		
		optional: function(element) {
			return !$.validator.methods.required.call(this, $.trim(element.value), element) && "dependency-mismatch";
		},
		
		startRequest: function(element) {
			if (!this.pending[element.name]) {
				this.pendingRequest++;
				this.pending[element.name] = true;
			}
		},
		
		stopRequest: function(element, valid) {
			this.pendingRequest--;
			// sometimes synchronization fails, make sure pendingRequest is never < 0
			if (this.pendingRequest < 0)
				this.pendingRequest = 0;
			delete this.pending[element.name];
			if ( valid && this.pendingRequest == 0 && this.formSubmitted && this.form() ) {
				$(this.currentForm).submit();
				this.formSubmitted = false;
			} else if (!valid && this.pendingRequest == 0 && this.formSubmitted) {
				$(this.currentForm).triggerHandler("invalid-form", [this]);
				this.formSubmitted = false;
			}
		},
		
		previousValue: function(element) {
			return $.data(element, "previousValue") || $.data(element, "previousValue", {
				old: null,
				valid: true,
				message: this.defaultMessage( element, "remote" )
			});
		},

		regexp: function(reg, value, element) {
			var val = new RegExp("^"+reg+"$");
			return val.exec(value);
		},


		// 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':
				// could be an array for select-multiple or a string, both are fine this way
				var val = $(element).val();
				return val && val.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] = {};
			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 ) {
				previous.old = value;
				var validator = this;
				this.startRequest(element);
				var data = {};
				data[element.name] = value;
				$.ajax($.extend(true, {
					url: param,
					mode: "abort",
					port: "validate" + element.name,
					dataType: "json",
					data: data,
					success: function(response) {
						validator.settings.messages[element.name].remote = previous.originalMessage;
						var valid = response === true;
						if ( valid ) {
							var submitted = validator.formSubmitted;
							validator.prepareElement(element);
							validator.formSubmitted = submitted;
							validator.successList.push(element);
							validator.showErrors();
						} else {
							var errors = {};
							var message = (previous.message = response || validator.defaultMessage( element, "remote" ));
							errors[element.name] = $.isFunction(message) ? message(value) : message;
							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.getLength($.trim(value), element) >= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/maxlength
		maxlength: function(value, element, param) {
			return 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 ( length >= param[0] && length <= param[1] );
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/min
		min: function( value, element, param ) {
			return value >= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/max
		max: function( value, element, param ) {
			return value <= param;
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/range
		range: function( value, element, param ) {
			return ( 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 /^((([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 /^(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 !/Invalid|NaN/.test(new Date(value));
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/dateISO
		dateISO: function(value, element) {
			return /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(value);
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/number
		number: function(value, element) {
			return /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value);
		},
	
		// http://docs.jquery.com/Plugins/Validation/Methods/digits
		digits: function(value, element) {
			return /^\d+$/.test(value);
		},

		alphanumeric: function(value, element) {
			return /^[A-Z a-z 0-9]+$/.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 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);
				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 value.match(new RegExp(".(" + param + ")$", "i")); 
		},
		
		// http://docs.jquery.com/Plugins/Validation/Methods/equalTo
		equalTo: function(value, element, param) {
			// bind to the blur event of the target in order to revalidate whenever the target field is updated
			// TODO find a way to bind the event just once, avoiding the unbind-rebind overhead
			var target = $(param).unbind(".validate-equalTo").bind("blur.validate-equalTo", function() {
				$(element).valid();
			});
			return value == target.val();
		}
		
	}
}