The print was part of my debugger :P
Sorry about that.
this is how its supossed to be:
if($this->oForm->_navConf("/search/sql/query/userobj",$this->aElement) !
== false)
{
$sql =
$this->oForm->_callUserObj($this->oForm->_navConf("/search/sql/query",
$this->aElement));
}