I create a log out file.
I wrote

but when i push the back button of firefox, I return to the file when I were logged in.
Can I decline it and redirect at log in page?

Sounds like you are caching your pages,.. you need to force the expiry of the content.... something like
Should solve the problem

Well yes in my opinion a back button would show up what you have but of course one wouldn't be able to do any further processing if each page checked for some kind of logged in session variable.

On a few pages that I really didn't want to allow a back button to be used such as on a confirmation page after a bunch of input pages I've used something like this:

A1ien51's disable the Back Button
http://www10.brinkster.com/A1ien51/S...BackButton.htm
What is going to happen, is when the page loads, it will send the surfer to the last page in their history.
Now if a person tries to go back to it, then it will send them directly back to the page they pushed the back button on!
Add this code to the header of your page:
<script>
history.forward();
</script>

JPS: Thus need to put the code on the page you don't want the user to be able to go back to.
And here is my version of it:
<script type="text/javascript"> <!--
// Disable browser's Back button on another pg being able to go back to this pg.
history.forward();
//-->
</script>

fully expiring the content should work as well. The problem with the JS version is that if you disable JS you can still go back and see what was there....

I'm not saying that there aren't hacks for the expired content, but I find it tends to work a lot better then the JS version.

I try all of above and I find that none of them works with ALL the brownsers.
For eample I saw that te meta with "expires" works at IE but not with others brownsers, the javascript code not works with Opera.
Dimis

There is another way:
<a href="here.asp" onclick="javascript:location.replace(this.href);ev ent.returnValue=false;">
here</a>
dimis