Rendering multiple controls with javascript functions

[orianavim]

Hi,

Depend on the user decision, a page can contain one or more user
control which i will call it for now PictureControl. This is a simple
..ascx which contains few html elements and some java script functions.

now, when if i have more than one PictureControl in a page, i get the
javascript functions rendered
few times without any need (its exactley the same functions).


My questions are:

1.Any ideas how can I improve it?
2. How can I control the rendering and decides which part i will render
and which part i would not?

Thank you very much for you help,

Ori