function check_vars($nullvar = "")
{
global $module, $patient;
if (!isset($module)) {
trigger_error("No Module Defined", E_ERROR);
}
if ($patient < 1) {
trigger_error("No Patient Defined", E_ERROR);
}
// check access to patient
if (!freemed::check_access_for_patient($patient)) {
trigger_error("User not Authorized for this function", E_USER_ERROR);
}
return true;
}