/* * Really easy field validation with Prototype * http://tetlaw.id.au/view/blog/really-easy-field-validation-with-prototype * Andrew Tetlaw * Version 1.2.1 (2006-05-02) * Thanks Mike Rumble http://www.mikerumble.co.uk/ for onblur idea! * http://creativecommons.org/licenses/by-sa/2.5/ */Validator = Class.create();Validator.prototype = {	initialize : function(className, error, test) {		this.test = test ? test : function(){ return true };		this.error = error ? error : 'Validation failed.';		this.className = className;	}}var Validation = Class.create();Validation.prototype = {	initialize : function(form, options){		this.options = Object.extend({			stopOnFirst : false,			immediate : false		}, options || {});		this.form = $(form);		Event.observe(this.form,'submit',this.onSubmit.bind(this),false);		if(this.options.immediate) {			Form.getElements(this.form).each(function(input) { // Thanks Mike!				Event.observe(input, 'blur', function(ev) { Validation.validate(Event.element(ev).id) });			});		}	},	onSubmit :  function(ev){		if(!this.validate()) Event.stop(ev);	},	validate : function() {		if(this.options.stopOnFirst) {			return Form.getElements(this.form).all(Validation.validate);		} else {			return Form.getElements(this.form).collect(Validation.validate).all();		}	}}Object.extend(Validation, {	validate : function(elm, index, options){ // index is here only because we use this function in Enumerations		var options = Object.extend({}, options || {}); // options still under development and here as a placeholder only		elm = $(elm);		var cn = elm.classNames();		return result = cn.all(Validation.test.bind(elm));	},	test : function(name) {		var v = Validation.get(name);		var id = 'advice-' + name + '-' + this.id;		var prop = '__advice'+name;		if(Validation.isVisible(this) && !v.test($F(this))) {			if(!this[prop]) {				var advice = document.createElement('div');				advice.appendChild(document.createTextNode(v.error));				advice.className = 'validation-advice';				advice.id = id;				advice.style.display = 'none';				this.parentNode.insertBefore(advice, this.nextSibling);				if(typeof Effect == 'undefined') {					advice.style.display = 'block';				} else {					new Effect.Appear(advice.id, {duration : 1 });				}			}			this[prop] = true;			this.removeClassName('validation-passed');			this.addClassName('validation-failed');			return false;		} else {			try {				$(id).remove();			} catch(e) {}			this[prop] = '';			this.removeClassName('validation-failed');			this.addClassName('validation-passed');			return true;		}	},	isVisible : function(elm) {		while(elm.tagName != 'BODY') {			if(!$(elm).visible()) return false;			elm = elm.parentNode;		}		return true;	},	add : function(className, error, test, options) {		var nv = {};		nv[className] = new Validator(className, error, test, options);		Object.extend(Validation.methods, nv);	},	addAllThese : function(validators) {		var nv = {};		$A(validators).each(function(value) {				nv[value[0]] = new Validator(value[0], value[1], value[2]);			});		Object.extend(Validation.methods, nv);	},	get : function(name) {		return  Validation.methods[name] ? Validation.methods[name] : new Validator();	},	methods : {}});//var $V = Validation.validate;//var $VG = Validation.get;//var $VA = Validation.add;Validation.add('IsEmpty', '', function(v) {				return  ((v == null) || (v.length == 0) || /^\s+$/.test(v));			});Validation.addAllThese([	['required', 'this is a required information.', function(v) {				return !Validation.get('IsEmpty').test(v);			}],	['richiesto', 'questo è un campo obligatorio.', function(v) {				return !Validation.get('IsEmpty').test(v);			}],	['validate-number', 'Qui solo cifre.', function(v) {				return Validation.get('IsEmpty').test(v) || !isNaN(v);			}],	['validate-digits', 'Please use numbers only in this field.', function(v) {				return Validation.get('IsEmpty').test(v) ||  !/[^\d]/.test(v);			}],	['validate-alpha', 'Please use letters only (a-z) in this field.', function (v) {				return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z]+$/.test(v)			}],	['validate-alphanum', 'Please use only letters (a-z) or numbers (0-9) only in this field. No spaces or other characters are allowed.', function(v) {				return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)			}],	['validate-date', 'Please enter a valid date.', function(v) {				var test = new Date(v);				return Validation.get('IsEmpty').test(v) || !isNaN(test);			}],	['validate-email', 'Please enter a valid email address. For example fred@domain.com .', function (v) {				return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)			}],	['validate-mail', 'Prego inserire un indirizzo corretto. ad esempio nome@dominio.it .', function (v) {				return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)			}],	['validate-date-au', 'Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006.', function(v) {				if(!Validation.get('IsEmpty').test(v)) {					var upper = 31;					if(/^(\d{2})\/(\d{2})\/(\d{4})$/.test(v)) { // dd/mm/yyy						if(RegExp.$2 == '02') upper = 29;						if((RegExp.$1 <= upper) && (RegExp.$2 <= 12)) {							return true;						} else {							return false;						}					} else {						return false;					}				} else {					return true;				}			}],	['validate-currency-dollar', 'Please enter a valid $ amount. For example $100.00 .', function(v) {				// [$]1[##][,###]+[.##]				// [$]1###+[.##]				// [$]0.##				// [$].##				return Validation.get('IsEmpty').test(v) ||  /^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)			}]]);