[solved] Now to solve with Webform!

I solve using the footer variable to the Contact Save module function (contact_save_mail_alter)adding this line to "message" text:

'message' => $message['params']['message'].here_the_variable;

in my case i had to add:

$message['body'][2].$message['body'][3].$message['body'][4]

first and second was for some extra fields from a custom module for Contact and the last $message['body'][4] to collect values from:

$body_footer = theme('contact_google_analytics_footer', $footer);
$body_footer = token_replace_multiple($body_footer);

But now i need ideas to make the same for Webform!!!
I saw that token generated by ga_tokenizer are not present in token supported by webform (i'm using 2.x version of Webform).

Ideas about?