function closeSessionOnClick(){
    $.ajax({
            type: "POST",
            url: '../../SERVER_MANAGEMENT/session_management.php',
            data: {functionName: 'delete_session'},
            success: function () {
            }
     }
});

switch($_POST['functionName']) {
      case 'delete_session':
      delete_session();
      break;
}
function delete_session(){
    session_start();
    if (isset($_SESSION['name'])) {
        session_destroy();
    }
}