// JavaScript Document

function bhover(id, type) {
	
	btn =document.getElementById('btn' + id);

	if (type == 'on')
		btn.src = 'images/btn-' + id + '-hover.gif';
	else
		btn.src = 'images/btn-' + id + '-off.gif';
	
}

function checkForm() { 

	error = false;
	name 	= document.getElementById('name').value;
	email 	= document.getElementById('email').value;
	message = document.getElementById('message').value;
	
	error_message = 'You must fix the following errors:' + "\n";
	
	if (name == '') {
		error_message += '* You must enter your name' + "\n";
		error = true;
	}
	
	if (email == '') {
		error_message += '* You must enter your email address' + "\n";
		error = true;
	}
	
	if (message == '') {
		error_message += '* You must enter a message' + "\n";
		error = true;
	}	
	
	if (error) {	
		alert(error_message);
		return false;
	} else {
		return true;	
	}
}