jquery - Open an iframe after submit form -

i have form , want when validate information , ok open iframe fancybox saying:

"thanks register... "

i test in jquery manage form:

$.fancybox( {href : 'http://www.google.com.uy', title : 'lorem lipsum'} ); 

pd: url test, nothing happend

i´m using codeigniter , php.

i think problem might not specifying content type. should iframe in case.

$.fancybox({href : 'http://www.google.com.uy', title : 'lorem lipsum', type: 'iframe'});