$_SESSION and ie6 problem

[cmose]

now I know there are problems with sessions and ie6 and I googled it and turned up all sorts of things but they weren't quite the issue that I am having, although they may be related but I'm too blind to see it.

On a page I have the following at the very beginnging of the page:
session_start();
header("Cache-control: private");

the page is a form that uses php_self as the action. When the page has data posted to it from another page I set a new session variable, e.g., $SESSION['action'] = "edit". When the page then posts to itself (receiving data from another page is for the purposes of editing vs. new entry) I check if $SESSION['action'] == "edit" and if it does I do xyz and then set $_SESSION['action'] = " ";

The sticky wicket is that ie6 does not appear to register that change or I am doing something wrong to make that change (e.g., writing the value $_SESSIOn['action'] to a file after changing the value to " " still writes "edit").
Does anyone have any suggestions?

many thanks.

[planetsim]

Instead of keeping the Session alive why dont use [man]unset()[/man] it

[cmose]

thanks for the suggestion. I was going to go that route but since things worked the way I had them in firefox but didn't in ie6 I decided I didn't want to deal with the potential of something not working in another unforeseen circumstance. Just ended up conditionally encoding a hidden field into the input form.

muchas gracias
(I may just give that unset a try tomorrow though just to see if it does the trick)