Php responsive search engine

[appuntimania]

I have a Italian based language site: http://www.appuntimania.com with informations about different topics.

I want to implement a simple php responsive search engine for my site on pages like this on the right side of the site
http://www.appuntimania.com/tecniche/ingegneria-tecnico/index7.php
I want to add a new dropdown box to select category before search button is hitted.

Is there a possibility to integrate Google Site Search with drop down box?
How can i do that?

I need some code suggestions, to make this script run fast.

Thanks all

[dalecosp]

https://www.google.com/work/search/products/gss.html

Google wants $$ for their technology, though ...

I recently "rolled my own" site search with SphinxQL ... but I guess I'm not really a "newb" anymore where PHP is concerned (although several of these guys around here often make me look like one 😉 )