function loginSubmit(){		
	if(document.getElementById('username').value == ""){
		alert('Please make sure that you specify an username');
		document.getElementById('username').focus();
		return false;
	}	
	if(document.getElementById('password').value == ""){
		alert('Please make sure that you specify a password');
		document.getElementById('password').focus();
		return false;
	}
}