How hard will this be to do using JQuery and ASP.NET

How hard will this be to do using JQuery and ASP.NET


Hello all,
I'm working on an ASP.NET site where the user is allowed to pick
colors for certain elements on the page. Essentially, what I want to
do is have a button on the page that the user can click and bring up a
popup (non-modal and non-moveable) that allows them to choose colors
from a set of colors that I specify. Once the user selects a color, I
want to call a method (the method will be passed in to the function
that displays the color picker).
Now, I currently have some server-side code that takes my list of
allowed colors and writes out a nice table with the colors sorted by
HSB. How difficult is it to call a method on my ASP.NET page (or
elsewhere, if there is a better place I can put it) and have the
results streamed back to the browser?
I'm having a hard time finding good documentation on how to make
ASP.NET play nice with JQuery.
Thanks in advance,
Will Gant