Thank you TG and Chris.Using $_REQUEST or something like $parameter = array_merge($_GET, $_POST); makes me a little noise; so preffer using extra ()'s, changing to $mydata = (isset($_GET["mydata"])) ? $_GET["mydata"] : ((isset($_POST["mydata"])) ? $_POST["mydata"] : 0); and include a little comment above.
It works, thank you J. Alejandro Ceballos Z. w: http://alejandro.ceballos.info e: buzon@xxxxxxxxxxxxxxxxxxxxxxx m: +52 (33) 1411.6079