Resizing window to smaller than opened list cause icon to dissapear.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Use the demo page for ufd
2. click on the arrow button to open the select and have the list appear and 
don't close it.
3. Move the arrow buttons on the window vertical scroller so the opened select 
list appears on the top right corner of the window. 
4. Re size the window smaller as the size of the opened list and see as soon as 
it is smaller the dropwdown icon disappears and stays disappeared even if you 
increase the window size to the original size.

What is the expected output? What do you see instead?
The dropwdown icon disappears. Prefer it that on resize the dropdown 
automatically goes close to avoid any quirks. 

What version of the product are you using? On what operating system?
0.5 Using Firefox 3.6. IE8.

Please provide any additional information below.

Original issue reported on code.google.com by atr...@gmail.com on 1 Jul 2010 at 9:05

[GoogleCodeExporter]

Checked again and it is infact resizing that causes the opened list to stay 
static but the dropdown and icon to move away.
So the control does nto support window resizing.
Best fix is on resize for it to dissapear.

Original comment by atr...@gmail.com on 1 Jul 2010 at 9:13