This line:
$rsDetails->bindParam("i", "".(isset($_GET['".($rsDetails->getColumnVal("RecNo")) ."'])?$_GET['".($rsDetails->getColumnVal("RecNo")) ."']:"") ."", "-1");
should be:
$rsDetails->bindParam("i", "".(isset($_GET["RecNo"])?$_GET["RecNo"]:"") ."", "-1");