/** Performs a query, and returns the result set. The result set should be freed when finished. */
protected static function query($SQL)
{
clsDB::initialize();
$SQL = clsDB::doFullReplace($SQL);
clsDB::$arrQueries[] = $SQL;
$RST = mysql_query($SQL, clsDB::$conDB);
if (!$RST) {
throw new Exception("MySQL Error: " . mysql_error(clsDB::$conDB) . ": {$SQL}");
}
return $RST;
}