function validateLogin() {
	
	var h_username = document.getElementById('username');
	var h_password = document.getElementById('password');
	var h_error = document.getElementById('errors');

	if (h_username.value.length == 0) {
		h_error.innerHTML = "<p>Invalid Username<br>Please enter your username</p>"
	    //alert('Invalid username\nPlease enter your username');
		warnElement(h_username);
		return false;
	}

	if (h_password.value.length == 0) {
		h_error.innerHTML = "<p>Invalid Password<br>Please enter your password</p>"
	    //alert('Invalid password\nPlease enter your password');
		warnElement(h_password);
		return false;
	}

	return true;
}

function warnElement(p_element) {
	//p_element.className = 'warn';
	p_element.value = '';
	p_element.focus();
}

function normalElement(p_element) {
	p_element.className = 'normal';
}