var form = "";
var submitted = false;
var error = false;
var error_message = "";

function check_input(field_name, field_size, message){
	if(form.elements[field_name] && (form.elements[field_name].type != "hidden")){
		var field_value = form.elements[field_name].value;
		if(field_value == '' || field_value.length < field_size){
			error_message = error_message + "* " + message + "\n";
			error = true;
		}
	}
}

function check_radio(field_name, message){
	var isChecked = false;
	if(form.elements[field_name] && (form.elements[field_name].type != "hidden")){
		var radio = form.elements[field_name];
		
		for(var i=0; i<radio.length; i++){
			if(radio[i].checked == true){
				isChecked = true;
				break;
			}
		}
		if(isChecked == false){
			error_message = error_message + "* " + message + "\n";
			error = true;
		}
	}
}

function check_select(field_name, field_default, message){
	if(form.elements[field_name] && (form.elements[field_name].type != "hidden")){
		var field_value = form.elements[field_name].value;
		if(field_value == field_default){
			error_message = error_message + "* " + message + "\n";
			error = true;
		}
	}
}

function check_password(field_name_1, field_name_2, field_size, message_1, message_2){
	if(form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")){
		var password = form.elements[field_name_1].value;
		var confirmation = form.elements[field_name_2].value;
		if(password == '' || password.length < field_size){
			error_message = error_message + "* " + message_1 + "\n";
			error = true;
		}else if(password != confirmation){
			error_message = error_message + "* " + message_2 + "\n";
			error = true;
		}
	}
}

function check_password_new(field_name_1, field_name_2, field_name_3, field_size, message_1, message_2, message_3) {
	if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
		var password_current = form.elements[field_name_1].value;
		var password_new = form.elements[field_name_2].value;
		var password_confirmation = form.elements[field_name_3].value;
		
		if (password_current == '' || password_current.length < field_size) {
			error_message = error_message + "* " + message_1 + "\n";
			error = true;
		} else if (password_new == '' || password_new.length < field_size) {
			error_message = error_message + "* " + message_2 + "\n";
			error = true;
		} else if (password_new != password_confirmation) {
			error_message = error_message + "* " + message_3 + "\n";
			error = true;
		}
	}
}

function check_form(form_name){
	error = false;
	form = form_name;
	error_message = "Errors have occured during the process of your form.\n\nPlease make the following corrections:\n\n";
	check_radio("gender", "Please select your Gender.");
	check_input("first_name", 2, "Your First Name must contain a minimum of 2 characters.");
	check_input("last_name", 2, "Your Last Name must contain a minimum of 2 characters.");
	check_input("email", 6, "Your E-Mail Address must contain a minimum of 6 characters.");
	check_input("address", 5, "Your Address must contain a minimum of 5 characters.");
	check_input("post_code", 4, "Your Post Code must contain a minimum of 4 characters.");	
	check_input("district ", 4, "Your District must contain a minimum of 4 characters.");
	check_input("city", 4, "Your City must contain a minimum of 4 characters.");
	check_select("country", "", "You must select a country from the Countries pull down menu.");
	check_input("telephone", 9, "Your Telephone Number must contain a minimum of 9 characters.");
	check_password("password", "password2", 6, "Your Password must contain a minimum of 6 characters.", "The Password Confirmation must match your Password.");
	check_password_new("old_pass", "password", "password2", 5, "Your Password must contain a minimum of 6 characters.", "Your new Password must contain a minimum of 6 characters.", "The Password Confirmation must match your new Password.");

	if(error == true){
		alert(error_message);
		return false;
	}else{
		submitted = true;
		return true;
	}
}