Problems "search with the sidebar"

Hi

i get the follow problem:

1. i put in the sidebar a block with the one categoria to show and Headlines Template.

2. i m testing the search option, the system display the find list.

3. i dont click in the result and i want to click in sidebar with the template headlines and no show the news selected... mmm ok

4. next step, i decided change the word or author to search in search form box and... show all news in the sidebar with the template Headlines.

5. caos in the web.