Javascript/Mootools onload hide help

[Neostrategos]

Hey all, ran into a bit of a roadblock on this project.

I'm creating a simple interactive floorplan for a client.

Check it.

So it opens in a shadowbox, then uses mootools to fancy up my form elements and implements a simple show/hide effect from David Walsh the radio buttons make certain divs containing images show and hide on the floorplans.

The function is fairly spot on except that I cannot for the life of me get these divs to hide onload.

Basically everything that is blue on the left should be invisible until it's corresponding radio button is clicked.

Any ideas?

[Neostrategos]

Here is a link to the page without the shadowbox involved.

Shadowless