Rich:toolBar in a JSF page:how to avoid horizontal scrollbars?

Hi,
I have a rich:toolBar. I create this toolbar from a backing bean class. I have around 19 dropdown menus in the toolbar. So when the toolbar renders, the length (i mean, width) of the toolbar exceeds the page width. This causes the browser to add a horizontal scrollbar. I do not want this scrollbar. My requirement is like this:
when the width of the toolbar is more than the screen width, the rest of the menus must be added to another DropdownMenu.This menu will be the last menu and it will contain all the menus which cant be viewed when the toolbar is rendered.
When we use overflow : hidden, it removes the scrollbar in firefox not in IE. If you are not clear about the requirement, you can see the firefox browser itself as one with the similar feature. when we open more tabs than it is able to render, the tabs which are not shown are added to a 'button' to the right of the browser window.
Please help me with your ideas.
Thanks,
Geet

the overflow : hidden worked well(actually not well, i was not able to see the menu items)on my firefox browser. but it didnt work on my IE. and my firefox version is 3.

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