Number - price picker

i have a Seaside application displayed on hold touch screen device ( with Windows XP and Firefox 27.0 )

Now the seaside interface includes some I/O number field ( for quantity and for price ).

My goal is two display a number picker when the user click on a specific numeric field,

allowing to enter specific value from digit buttons keypad.

There is something in this directions?

If i write the seaside digits buttons keypad widget, how i can open it near the specific field select by the user?

So how does the Jquery DataPicker  widget  to understand.

Thanks for any considerations,

Dario