$(document).ready(function(){
	//global vars
	var form = $("#Step1");
	var name = $("#Customer_Name");
	var nameInfo = $("#Customer_Name_Info");
	var telephone = $("#Customer_Telephone");
	var telephoneInfo = $("#Customer_Telephone_Info");
	var registration = $("#Vehicle_Registration");
 var registrationInfo = $("#Vehicle_Registration_Info");
	var mileage = $("#Vehicle_Mileage");
 var mileageInfo = $("#Vehicle_Mileage_Info");
	
	//On blur
	name.blur(validateName);
	telephone.blur(validateTelephone);
	registration.blur(validateRegistration);
	mileage.blur(validateMileage);
	
	//On key press
	name.keyup(validateName);
	telephone.keyup(validateTelephone);
	registration.keyup(validateRegistration);
	mileage.keyup(validateMileage);
	
	//On Submitting
	form.submit(function(){
		if(validateName() & validateTelephone() & validateRegistration() & validateMileage())
			return true;
		else
			return false;
	});
	
	
	function validateName(){
		//if it's NOT valid
		if(name.val().length < 4){
			name.removeClass("valid");
			name.addClass("error");
			nameInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validNo.png')" });
			nameInfo.addClass("error");
			return false;
		} 
		//if it's valid
		else{
			name.addClass("valid");
			nameInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validYes.png')" });
			nameInfo.addClass("valid");
			return true;
		} 
	}
	
	function validateTelephone(){
		//testing regular expression
		var b = $("#Customer_Telephone").val();
		var filter = /^(((\+44)? ?(\(0\))? ?)|(0))( ?[0-9]{3,4}){3}$/;
		//if it's telephone email
		if(filter.test(b)){
			telephone.addClass("valid");
			telephoneInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validYes.png')" });
			telephoneInfo.removeClass("valid");
			return true;
		}
		//if it's NOT valid
		else{
			telephone.addClass("error");
			telephoneInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validNo.png')" });
			telephoneInfo.addClass("error");
			return false;
		}
	}
	
	function validateEmail(){
		//testing regular expression
		var a = $("#Customer_Email").val();
		var filter = /^[a-zA-Z0-9]+[a-zA-Z0-9_.-]+[a-zA-Z0-9_-]+@[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{2,4}$/;
		//if it's valid email
		if(filter.test(a)){
			email.removeClass("error");
			emailInfo.text("Thank you, your e-mail address is valid.");
			emailInfo.removeClass("error");
			return true;
		}
		//if it's NOT valid
		else{
			email.addClass("error");
			emailInfo.text("Please enter a valid e-mail address!");
			emailInfo.addClass("error");
			return false;
		}
	}

	function validateRegistration(){
		//testing regular expression
		var b = $("#Vehicle_Registration").val();
		var filter = /^(([A-Z]{1,2}[ ]?[0-9]{1,4})|([A-Z]{3}[ ]?[0-9]{1,3})|([0-9]{1,3}[ ]?[A-Z]{3})|([0-9]{1,4}[ ]?[A-Z]{1,2})|([A-Z]{3}[ ]?[0-9]{1,3}[ ]?[A-Z])|([A-Z][ ]?[0-9]{1,3}[ ]?[A-Z]{3})|([A-Z]{2}[ ]?[0-9]{2}[ ]?[A-Z]{3})|([A-Z]{3}[ ]?[0-9]{4}))$/;
		//if it's valid
		if(filter.test(b)){
			registration.removeClass("error");
			registration.addClass("valid");
	  registrationInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validYes.png')" });
			registrationInfo.addClass("valid");
			return true;
		}
		//if it's NOT valid
		else{
			registration.addClass("error");
			registrationInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validNo.png')" });
			registrationInfo.addClass("error");
			return false;
		}
	}
	
	function validateMileage(){
		//testing regular expression
		var a = $("#Vehicle_Mileage").val();
		var filter = /^\d(\d)?(\d)?(\d)?(\d)?$/;
		//if it's valid
		if(filter.test(a)){
		 mileage.removeClass("error");
			mileage.addClass("valid");
			mileageInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validYes.png')" });
			mileageInfo.addClass("valid");
			return true;
		}
		//if it's NOT valid
		else{
			mileage.addClass("error");
			mileageInfo.css({ "background-image": "url('http://www.wewillbuyyourvan.co.uk/wp-content/themes/wewillbuyyourvan/images/validNo.png')" });
			mileageInfo.addClass("error");
			return false;
		}
	}
});