[TYPO3-english] Simple chat on extbase. How to get messages without reload page?

[Dmitry]

I'm doing an extension for a simple chat on extbase. For sending message I'm using ajax request with pagetype like

<!-- Here showing new messages -->
<div class="comments"></div>

<!-- Form for send message -->
<f:form pageType="1337"	class="ajaxpost"...

As a result everything works fine. Sender can post messages without reloading page. But how make to sender can read messages from recipient without reload page. Or if I know what I have new mesage, page must be reload? Any idea or direction.
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Kind regards,
Dmitry Vasilev
www: http://typo3.ru.net/
Skype: thule-varahi;
Phone: +7 950 001 85 15