You can get the page layout and functionality corrupted this way when scripting in your browser (javascript) is disabled.
Verified. ;-)
Try to turn on javascript if you can (javascript can be turned off permanently by your company security policy control).
This is how you can change javascript setting in IE:
In Chrome - go to settings:
- click the link at bottom: "Show advanced settings" (or something like that - I don't have English version of Chrome)
- in section "Privacy control" click the button "Content setting"
- In section "Javascript", turn on "Javascript for all websites (recommended)"
Update:
Check also "Exceptions" (javascript can be disabled/enabled only for some websites).
In fact, without javascript enabled, you wouldn't be able to reach this forum.
P.S. I don't understand why such a simple and static thing as web page menu is created dynamically using JavaScript. It's only source of troubles. For the same reason, I cannot reach most functionality of Panoramio on my (dumb) phone. Same effect of cascading menu can be achieved with CSS and with maintaining accessibility. It seems to me, Google moves to different accessibility standards. >]:-(