var Validate = new Class({
	
	getOptions: function(){
		return {
			validateOnBlur: true,
			errorClass: 'error',
			errorMsgClass: 'errorMessage',
			dateFormat: 'dd/MM/yy',
			onFail: Class.empty,
			onSuccess: false,
			showErrorsInline: true,
			label: ''
		};
	},

	initialize: function(form, options){
		
		
		
		this.setOptions(this.getOptions(), options);
		
		this.form = $(form);
		this.elements = this.form.getElements('.required');
		
		this.list = [];
		
		this.elements.each(function(el,i){
			if(this.options.validateOnBlur){
				el.addEvent('blur', this.validate.bind(this, el));
			}
		}.bind(this));
		
		this.form.addEvent('submit', function(e){
			var event = new Event(e);
			var doSubmit = true;
			this.elements.each(function(el,i){
				if(! this.validate(el)){
					event.stop();
					doSubmit = false

				}else{
					
				}
			}.bind(this));
			
			if(doSubmit){
				if(this.options.onSuccess){
					event.stop();
					this.options.onSuccess(this.form);
				}else{
					this.form.getElement('input[type=submit]').setProperty('value',this.options.label);
				}
			}else{
				//this.options.onFail(this.getList());
			}
			
		}.bind(this));
		
	},
	

	
	validate: function(el){
		var valid = true;
		this.clearMsg(el);
		
		switch(el.type){
			case 'text':
			case 'textarea':
			case 'select-one':
				if(el.value != ''){
					if(el.hasClass('email')){
						var regEmail = /^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/;
						if(el.value.toUpperCase().match(regEmail)){
							 var req = new Request({  
								 method: 'post',  
								 url: ROOT + 'modules/checkuser.php',  
								 data: { 'email' : el.value },  
								 onComplete: function(response) { 
								 
								 	if(response == 1) 
									{
										
										
										$('error_emailadres_text').innerHTML = 'E-mailadres word al gebruikt door een andere gebruiker! \n\r <br /><a href='+ ROOT + 'login.html>Bent u dit? Klik hier om in te loggen</a>';
										el.addClass('red');
										$('error_' + el.id).src = ROOT + 'images/error.gif';
										valid = false;	
										
										$('VolgendeStap2').set("disabled", "true");
									}
									else
									{
										$('error_emailadres_text').set("text", " ");
										el.addClass('red');
										$('error_' + el.id).src = ROOT + 'images/ok.gif';
										valid = true;	
										
										$('VolgendeStap2').set("disabled", "");
									}
								 
								 }  
							}).send();  
							
						}else{
							valid = false;
							this.setMsg(el, 'Please enter a valid email address');
						}
					}
					
					if(el.hasClass('number')){
						var regNum = /[-+]?[0-9]*\.?[0-9]+/;
						if(el.value.match(regNum)){
							valid = true;
						}else{
							valid = false;
							this.setMsg(el, 'Please enter a valid number');
						}
					}
					
					if(el.hasClass('postcode')){
						var regPC = /^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([A-Za-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) [0-9][A-Za-z]{2})$/
						if(el.value.match(regPC)){
							valid = true;
						}else{
							valid = false;
							this.setMsg(el, 'Please enter a valid postcode');
						}
					}
					
					if(el.hasClass('date')){
						var d = Date.parseExact(el.value, this.options.dateFormat);
						if(d != null){
							valid = true;
						}else{
							valid = false;
							this.setMsg(el, 'Please enter a valid date in the format: '+this.options.dateFormat.toLowerCase());
						}
					}
					
				}else{
					valid = false;
					this.setMsg(el);
				}
				break;
				
			case 'checkbox':
				if(!el.checked){
					valid = false;
					this.setMsg(el);
				}else{
					valid = true;
				}
				break;
				
			case 'radio':
				var rad = $A(this.form[el.name]);
				var ok = false;
				rad.each(function(e,i){
					if(e.checked){
						ok = true;
					}
				});
				if(!ok){
					valid = false;
					this.setMsg(rad.getLast(), 'Please select an option');
				}else{
					valid = true;
					this.clearMsg(rad.getLast());
				}
				break;
				
		}
		
		return valid;
	},
	
	setMsg: function(el, msg){

		if(msg == undefined){
			msg = el.title;
		}
		if(this.options.showErrorsInline){
			if(el.error == undefined){
				el.error = msg;
				$(el.id).setStyle("border", "1px solid red");
				$(el.id).setStyle("background", "url('" + ROOT + "images/error-bg.gif')");
				$(el.id).setStyle("color", "#FFFFFF");

			}else{
				el.error.set(msg);
			}
			el.addClass(this.options.errorClass);
		}
	},
	
	clearMsg: function(el){
		el.removeClass(this.options.errorClass);
		if(el.error != undefined){
			el.error = undefined;
		}
				$(el.id).setStyle("border", "1px solid #A0A0A0");
				$(el.id).setStyle("background", "url('" + ROOT + "/layout/images/input_bg.jpg') center bottom #fff repeat-x");
				$(el.id).setStyle("color", "#000");
	}
	
});

Validate.implement(new Options);
Validate.implement(new Events);