s_kanika 0 Newbie Poster

I've a basic chat script. In that I displayed messages directly from Mysql.
When I click on send button then form submits and I get my posted message on screen. But if anyone else post message then it won't displayed in my screen unless I resubmit the form.
If I use header("Refresh: 30;");
sesion variables destroy
Anyone help me plz.......