Search form script/code from a specific category ?

[Apfelfrucht]

Hello,

I'm creating a non-vB page XX and i wonder add "A Search Form" in that page XX, but the "Search Form" i need must be functional only on a Specific Category.

For example i have a "Videos" category in my forum then when i type "Shrek 3" in the "Search Form" From my non-vB page XX, it will search only in that "Videos" category.

Do you know where could i find that script/code, please ?