Help Me... Search with dropdown menu or radio button

[eluser]myrna[/eluser]
Thanks for the help, Flemming. I actually just learning CI and I'm making a final project in college and my teacher suggested to use the CI. So, I have yet to understand in depth about the CI and the programs that I wrote above is a program from others that my modifications.

If I have any trouble may I ask you?

If you have any examples of the search function?

Thank you, sorry with my english not perfect.