Problems with modal window and rockettheme

Hello, I'm having a bit of problems with the modal windows... they don't pop up but appear at the botttom of the page.

I think it's got to do with the template, I would love your feed back on the problem.

You can see the problem on: http://laiyla.org/index.php/palabras

Just click on "check result" or the other 2 buttons at the bottom of the crossword to reproduce.

Thank you!