Php switch between articles script

Hello lads,

Im making a webpage in php.
I need to make it browsable by arrowkeys.
As i can read it should be done with a javascript.

im thinking something like:

if (article 1){
keypress = up (article 0)
keypress = down (article 2)
}

and so forth.
So i check on what article im in, and what key that gets pressed there by send the browser to the corresponding article.

Can ya help me.
Thanks
/Lew

Something like that. Just keep in mind that at some point you will have to deal with the scroll of the window in order to keep the selected article visible.
For keypress the JavaScript event is onkeypress
all the best