.....
	<div id="chat">
	<script>
		function botReport(httpRequest)
		{
			if (httpRequest.readyState == 4) 
			{
            				if (httpRequest.status == 200) 
            				{ 
                				document.getElementById('chat').innerHTML = document.getElementById('chat').innerHTML + httpRequest.responseText;
                				document.body.scrollTop = 99999;
            				}
            			}
        		}
	......