$(document).ready(function(){
	//global vars
	var form = $("#customForm");
	var name = $("#name");
	var nameInfo = $("#nameInfo");
	var email = $("#email");
	var emailInfo = $("#emailInfo");
	var dest =$("#dest");
	var destInfo = $("#destInfo");
	var message = $("#message");
	
	//On blur
	name.blur(validateName);
	email.blur(validateEmail);
	dest.blur(validateDest);
	//On key press
	name.keyup(validateName);
	email.keyup(validateEmail);
	dest.keyup(validateDest);
	message.keyup(validateMessage);
	//On Submitting
	form.submit(function(){
		if(validateName() & validateEmail() & validateDest() & validateMessage())
			return true
		else
			return false;
	});
	
	//validation functions
	function validateEmail(){
		//testing regular expression
		var a = $("#email").val();
		var filter = /^[a-zA-Z0-9]+[a-zA-Z0-9_.-]+[a-zA-Z0-9_-]+@[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{2,4}$/;
		//if it's valid email
		if(filter.test(a)){
			email.removeClass("error");
			emailInfo.text("E-mail address okay.");
			emailInfo.removeClass("error");
			return true;
		}
		//if it's NOT valid
		else{
			email.addClass("error");
			emailInfo.text("Stop! Invalid email address used.");
			emailInfo.addClass("error");
			return false;
		}
	}


        function validateDest(){
                //testing regular expression
                var a = $("#dest").val();
                var filter = /^[a-zA-Z0-9]+[a-zA-Z0-9_.-]+[a-zA-Z0-9_-]+@[a-zA-Z0-9]+[a-zA-Z0-9.-]+[a-zA-Z0-9]+.[a-z]{2,4}$/;
                //if it's valid email
                if(filter.test(a)){
                        dest.removeClass("error");
                        destInfo.text("E-mail address okay.");
                        destInfo.removeClass("error");
                        return true;
                }
                //if it's NOT valid
                else{
                        dest.addClass("error");
                        destInfo.text("Stop! Type a valid e-mail please.");
                        destInfo.addClass("error");
                        return false;
                }
        }


	function validateName(){
		//if it's NOT valid
		if(name.val().length < 4){
			name.addClass("error");
			nameInfo.text("We want names with more than 3 letters!");
			nameInfo.addClass("error");
			return false;
		}
		//if it's valid
		else{
			name.removeClass("error");
			nameInfo.text("What's your name?");
			nameInfo.removeClass("error");
			return true;
		}
	}


	function validatePass1(){
		var a = $("#password1");
		var b = $("#password2");

		//it's NOT valid
		if(pass1.val().length <5){
			pass1.addClass("error");
			pass1Info.text("Ey! Remember: At least 5 characters: letters, numbers and '_'");
			pass1Info.addClass("error");
			return false;
		}
		//it's valid
		else{			
			pass1.removeClass("error");
			pass1Info.text("At least 5 characters: letters, numbers and '_'");
			pass1Info.removeClass("error");
			validatePass2();
			return true;
		}
	}
	

	function validateMessage(){
		//it's NOT valid
		if(message.val().length < 10){
			message.addClass("error");
			return false;
		}
		//it's valid
		else{			
			message.removeClass("error");
			return true;
		}
	}
});