Question : Calling the AJAX function

I have a simple AJAX form. I am calling the AJAX function in the Onclick event of a button.
Everything work well.

Now, what I want is I want this AJAX function executed every 5 seconds. How to do that?
The idea is to display the content of a text file from the server which is updated frequently.

For example, consider the hit counter which is stored in a text file, which is updated if any visitor enters the website home page. If i want to display the hit counter without refreshing the page, I need to use AJAX. This is just an example for you to understand what I want.

Any help is appreciated.
Thanks.

Answer : Calling the AJAX function

Use the setInterval() function:

MyInterval = setInterval('LoadTextFile();',5000);

You can cancel it with clearInterval():

clearInterval(MyInterval);