Submit a Javascript array over $.get with JQUERY?

Hey, i have friendly URLS on. In my Drupal Modul I have a path registered /test in hook_menu
No i want to do the fallowing:
I have a Javascript in my Form that creates an Array arr. I want to submit this array to my PHP Script using $.get(drupalurl/test, {'data[]', arr}, function (data) {foo bar})
I read that this wil work on

http://trippinbilly25.wordpress.com/2008/07/02/how-to-submit-javascript-...

but if I do print_r($_GET) in my Callback defined in hook_menu the is only the pram q=test and not my array.
Can anybody help me please?

Thanks an best regards