Controlling User Input

[ohad]

Hello,

I'm using viz.input() to get some user input.
I've got 2 questions about it :

a. I want the user to input a value within someTime seconds or else I want to give it a default value. Assigning my default value is easy but after someTime has passed the input box is still on the screen... is there a function to make it disappear?

b. Is there a way to set the location of the input box? It is currently in the middle of the screen and it would be preferable if it could be at the lower end of the screen.

Many thanks again :-)

Ohad