Google adsense search - customised form

I need to modify google adsense search code. I need to create advanced google search engine for website. What is differences : - I want to include categories and date as search options. - I need that I can specify for each category which part of website can search : example : [login to view URL] Category 1 : [login to view URL]; [login to view URL] Categoy2 : [login to view URL], [login to view URL] .... I give you screenshot of form. As user I can add to that code : - google adsense pub - name of sites that search form search - name of website parts that categyies include Thank you !