The pointer sets itself in the little search window

Question

1) When I'm on a new page on the internet and I want to go down on the page, I can't because the pointer will automatically put itself in the beginning in the little search window that many sites have which means when I click the down button, instead of going down, I see all the words I put previously (weeks, months ago) in the search window. I need to click somewhere on the page, nothing in particular, to release the pointer. This is very annoying since it happens every time I click on a new page.
How can I disable this ?
2) This is unrelated I guess but since I'm on this forum:
On some sites that I visit, the up or down button of my keyboard doesn't work
and the up and down arrow on the right of the page doesn't work either or is very unresponsive (slow. hesitant).
On other sites everything works fine.
It also works fine in Text Edit so I rule out a keyboard problem.

Answer 1

1. you'll need an add-on (like [pithHelmet|http://culater.net/software/PithHelmet/PithHelmet.php]) to disable this in safari. it is possible to disable this directly in firefox/camino.
alternatively, you can create a "focus page" keyboard shortcut through a bookmarklet. this won't be automatic, but will mean you won't have to reach for the mouse.
2. we need more info here (like a specific url), but you're bound to run into slowly responding sites if you're really using a 400mhz computer.