How many buttons i use on toolbar?

My colleagues develop some web page with dhtml library.
I have a question on buttons on toolbar.
In the web simulation with button on toolbar , I created many buttons.
User can see 10 or 11 buttons.
Because of the limitation of the length of toolbar, User can’t see all button I made.
In my system. User will use 20 buttons generally.
Inform me about the thing above.
Have a good day!

Unfortunately it is not available to add a scrollbar to the toolbar. The width of the toolbar is depends on the width of the toolbar parent container.
the wider your toolbar parent container the more items it may contain.

Thanks for reply. Have a good day.