how do I create a shopping cart kind of page ?

Hi,

I'm new to zoho creator, I manage to do little apps but I don't know where to start for the following page:
I would like to create a page a bit like Dell for adding options to a base product and add prices accordingly, It show be possible with scripting but I don't know how to start,
is there a sample or template I could look at ?
thanks
jl