How is this done? I Need it to work for ebay

Please someone tell me how this is done and where/ how I can purchase this script/ code? (The drop down custom configurator)
http://www.ebay.com/itm/Intel-Core-...=528139811772599399&pid=100033&prg=1011&rk=1&

I've searched google and end up empty handed. I know ebay does not offer this feature. It has to be custom programmed, no? I will pay for someone to set up something similar. THANKS

What feature are we supposed to be looking at? Can you post a screenshot of exactly what you're looking for?

If you want to do that then you have to hire someone who is professional in this field.
So try to hire someone that will give you better performance.

That's some easy but time consuming coding. I can do that for you. How much are you willing to pay?