function addedit_travel($tv)
{
$column_labels = array('ID', 'Level', 'Agreement', 'Date FROM (Y-m-d)', 'Date TO (Y-m-d)', 'Student', 'Study program', 'Semester', 'Language:', 'Has level', 'Expected level', 'Soc.stip.', 'Handicap', 'Files', 'Courses', 'Notes', 'Cancelled', 'Year');
$column_types = array('RDONLY', '*', '*', 'date', 'date', '*', '*', '*', '*', 'text', 'text', 'checkbox', 'checkbox', 'files', 'RDONLY', '100text', 'checkbox', '*');
$aggr = db_retrieve_agreements_data(TRUE);
$stds = db_students(TRUE);
$sps = db_study_programs(TRUE);
$langs = db_languages();
//$cors = db_courses_for_an_exchange($tv[0]);
$levels = array(array(1, "Bachelor"), array(2, "Master"), array(3, "Doctoral"));
$years = selection_of_years();
show_edit_form($column_labels, $tv, $column_types, array($levels, $aggr, $stds, $sps, array(array('W', 'winter'), array('S', 'summer')), $langs, $years));
}
function addedit_student($st)
{
$column_labels = array('ID', 'First name', 'Middle names', 'Last name', 'Born', 'Student ID', 'Gender', 'Citizenship', 'E-mail', 'Study programs', 'Year 1st participated');
$column_types = array('RDONLY', 'text', 'text', 'text', 'date', 'text', '*', '*', 'text', '+', '*');
$studprogs = db_study_programs(TRUE);
$cntries = db_countries();
$years = selection_of_years();
show_edit_form($column_labels, $st, $column_types, array(array(array('M', 'male'), array('F', 'female')), $cntries, $studprogs, $years));
}