frames/new page problem

[Anon]

I'm not sure what kind a of problem this might be
php/html/browser.

I'm using frames to submit (frame 1)and then view data in a table (frame 2).
there is also a cookie being used to that times out ( for authentication purposes)

this works fine on a mac/netscape combo.
on linux/netscape when the cookie times out the header: location "redirect" causes a new window to open up.
on windows/netscape a new window also opens.
on windows/internet explorer in one of the frames the contents of folder are listed.

Are frames browser dependent?
Is this my coding problem?
should i give up on frames?

Thank you.

[Anon]

Cant really help you on the location"redirect" issue.

I'm using the HTML tag refresh.
With a refresh every 10 minutes or so, that unsets the cookie. The cookie lives for sligthly less then 10 min.

This means. If the user does nothing in 10 minutes the cookie will be unset and the will be redirected with the refresh.

Something like this.

#If they do something:
IF (isset($cookie)) { SetCookie("cookie",$value,time()+600,"/","$URL",0);
}
#if they dont
IF (empty($cookie)) {
$expired=<meta http-equiv="refresh" content="0;URL=$redirect_url">
}

print "$expired";