function check_access ()
{
	document.getElementById('access_button').disabled = true;
	setTimeout("access_verified();", 1000);
}

function access_verified ()
{
	document.getElementById('access_error').style.visibility = 'visible';
	document.getElementById('access_error').style.display = 'block';
	document.getElementById('access_button').disabled = false;
	document.getElementById('access_text').value = '';
	document.getElementById('access_text').focus();
}