Automatic trigger of Reminder in PHP

[help_lucky]

Hello Everyone,

 

I am banging my head since morning. please help me.. I am not so good at php..i am in learning phase...

 

My requirement was to generate a popup once you immediately login. windows.alert('please call') then the popup should come for every 2 hrs.

 

Even though you navigate to different pages on the site..This should still come..

 

I have started something like this:--

1. Calling this script on everypage.

<script type="text/javascript">
alert_settimer();
</script>

And the code in the script is

function alert_settimer(){
    time_stop=2*60*60*1000;
    if(time_stop > 0) {
         timer= setTimeout("alert_settimer(),window.focus();window.alert('Please call Originator');",time_stop )
    }
}

 

It is able to give me a popup for every 2 hrs. But whenever the user reloads the page after 1 hr. The function is called again and the count starts from 0hrs again. OR for example if 20 mins already passed then if i am going to a new page then the function is called again and so the timer starts again.

I am not getting any idea how to restrict it calling every time. OR send that 1 hr again to the function so that it starts from there. I tried some thing like setting the value in a session variable and then starting the counter from that value. But i am not successful. Please help me in solving this...