Logout automatically after 5 min of inactivity (RESOLVED)

Quote guiags:

WOOOW!!!!!!
thank you very much code2go; it walk properly, i just add this instruction " CCLogoutUser();" and remove the line " header('Location: ' . 'login.php'); " (because when the user is logout, he is automatically redirect to a specific page i made (i used authentication builder to make an "Logout action on the page")).
So, my final code is:

$i_time = 5;

//now let`s format the time
$hour = date('H');
$mins = date('i');
$sec = date('s');
$mon = date('m');
$day = date('d');
$year = date('Y');

// this will create the time-stamp
$current_time = mktime($hour,$mins,$sec,$mon,$day,$year);

// and this line will make timeout
$timeout = mktime($hour,$mins+$i_time,$sec,$mon,$day,$year);

// if TIMEOUT session variable does not exist let`s create it
if(!CCGetSession('TIMEOUT'))
{
CCSetSession('TIMEOUT',$timeout);
}
// now let`s do the checking to test if the user has been active
if(CCGetSession('TIMEOUT') < $current_time){

// if not he/she will redirected to the page specified below

CCLogoutUser();

}

// this line below is very import because this will refresh the timeout anytime the user navigate
// thru the application
CCSetSession('TIMEOUT',$timeout);



Thank you very much.