Strange… I just re-downloaded the whole thing and repeat everything, and then things works.
thank you gotgotf very very much for your time 🙂
Edit: The problem was I didn’t add ‘wp_footer()’ 🙁
It’s just local.
I installed the last WP version(4.0), and I added this class.
Thank you gotgotf for your response,
But it still does not work, I think the problem is from this hook: customize_preview_init
Ohhhh man!
really easy ! and i was traying something dificult that’s not work.
Thanks esmi very much.