Couloir Slideshow and DHTML Menu

When put a block containing Couloir Slideshow, the DHTML menus don’t work ok.
Details:
Without Couloir Slideshow block: if you click on a parent menu with submenus, the parent menu is expanding / contracting. In order to see the associated node to the parent menu you must double click this menu.
With Couloir Slideshow block: if you click on a parent menu with submenus, the parent menu is not expanding and the associated node to the parent menu is shown.

You can test it here only until a fix will appear. The Colouir Slideshow block is set to appear only on the front page.

Bug submited also on Couloir Slideshow module page.