don't show error messages. how?

hello everybody,

i'm creating a little login screen to connect from PHP to postgresel
7.2 with adodb. the key part it looks like this:

include_once('adodb/adodb.inc.php');
$c=ADONewConnection('postgres7');
if ($c->PConnect('myserver',$id,$pwd,'mydb')) {
youreCool();
} else {
tryAgain();
}

this works OK, only when login fails (incorrect user ID, password), i
just want tryAgain() to run, without any errormessages. that's the
problem, PConnect() will give an errormessage if it fails, it generates
html like

your connection has failed blah blah
user ID ___________
password ___________

how can i suppress the message? with adodb? from within PHP?

TIA for any pointers / help

--
Jules Alberts