global $dal

Hello,
I want to use the DAL. I have copied and adapted examples from the manual.
This is my code:
function BeforeEdit(&$values, $where, &$oldvalues, &$keys, &$message, $inline, &$pageObject)

{
global $dal;
$tabel = $dal->Table("harm_tarieven");

$tabel->Param["Lid_ID"]=$values["ID"];

$tabel->Value["BedragRepetitie"]=$values["BedragRepetitie"];

$tabel->Value["BedragConcert"]=$values["BedragConcert"];

$tabel->Value["BedragGroep"]=$values["BedragGroep"];

$tabel->Update();
unset($values["BedragRepetitie"]);

unset($values["BedragConcert"]);

unset($values["BedragGroep"]);
return true;

;

} // function BeforeEdit
When I debug my code I see the $dal object after the statemant global $dal;

$dal tDAL

lstTables null

Table Array [0]

tbl31547test_at_localhostharm_composities null

tbl31547test_at_localhost__harm_docenten null

tbl31547test_at_localhostharm_uithulpen null

tbl31547test_at_localhost__harm_tarieven null
After the $tabel->Update(); statement I get following errors:

( ! ) Parse error: syntax error, unexpected 'test_at_localhost' (T_STRING) in E:\wamp\www\Harmonie80\include\dal.php(179) : eval()'d code on line 5

( ! ) Fatal error: Class 'class_31547test_at_localhost__harm_tarieven' not found in E:\wamp\www\Harmonie80\include\dal.php on line 180
Is the $dal object filled as it should be? If not, where do I fill it correctly.
Greetings,
Jo van Duin