ImageShow + Level 1 dropdown menu

Hi!
I can´t select the main sublevel items in Main Menu.
The Main Menu module it's published in header position, and over ImageShow.
The Main Menu doesn't works fine, cause I can't clic on sublevel items.

I don't know where the problem is. Main Menu module? template? ImageShow module?

Please, help.

Ty!

If your website is online please post the link in here otherwise please take a screenshot so we can make a suggestion for a fix.

See you around...

The site:
http://vayacaravana.com/17/

Ty!

If your website is online please post the link in here otherwise please take a screenshot so we can make a suggestion for a fix.

See you around...

Which browser are you using as i can see and click them fine... Tested using firefox 10.2 and ie9.

See you around...