function getConstraintForLevel($level)
{
    if ($level == "Lycées" || $level == "Lycée" || $level == "Lycee") {
        return getConstraintLycees();
    } else {
        if ($level == "Collèges" || $level == "Collège" || $level == "College") {
            return getConstraintColleges();
        } else {
            return getConstraintCollegesLycees();
        }
    }
}
function getConstraintCollegesLycees()
{
    return "(" . getConstraintLycees() . " OR " . getConstraintColleges() . ")";
}