function handle_send(mode, f)
	{
		if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
		{
			indicator_switch('on');
			type = 'receive';
			param = 'mode=' + mode;
			param += '&last_id=' + last_id;
			param += '&last_time=' + last_time;
			param += '&last_post=' + post_time;
			param += '&read_interval=' + read_interval;

			if (mode == 'add' && document.text.message.value != '')
			{
				type = 'send';
				for(var i = 0; i < f.elements.length; i++)
				{
					elem = f.elements[i];
					param += '&' + elem.name + '=' + encodeURIComponent(elem.value);
				}
				document.text.message.value = '';
			}
			else if (mode == 'delete')
			{
				type = 'delete';
				param += '&chat_id=' + f;
			}
			xmlHttp.open("POST", '{FILENAME}', true);
			xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
			xmlHttp.onreadystatechange = handle_return;
			xmlHttp.send(param);
		}
	}

	function handle_return()
	{
		if (xmlHttp.readyState == 4)
		{
			if (type != 'delete')
			{
				results = xmlHttp.responseText.split('---');
				if (results[1])
				{
					if (last_id == 0)
					{
						document.getElementById(fieldname).innerHTML = results[0];
					}
					else
					{
						document.getElementById(fieldname).innerHTML = results[0] + document.getElementById(fieldname).innerHTML;
					}
					last_id = results[1];
					if (results[2])
					{
						document.getElementById('whois_online').innerHTML = results[2];
						last_time = results[3];
						if (results[4] != read_interval * 1000)
						{
							window.clearInterval(interval);
							read_interval = results[4] * 1000;
							interval = setInterval('handle_send("read", last_id);', read_interval);
							document.getElementById('update_seconds').innerHTML = results[4];
						}
						post_time = results[5];
					}
				}
			}
			indicator_switch('off');
		}
	}

	function delete_post(chatid)
	{
		document.getElementById('p' + chatid).style.display = 'none';
		handle_send('delete', chatid);
	}

	function indicator_switch(mode)
	{
		if(document.getElementById("act_indicator"))
		{
			var img = document.getElementById("act_indicator");
			if(img.style.visibility == "hidden" && mode == 'on')
			{
				img.style.visibility = "visible";
			}
			else if (mode == 'off')
			{
				img.style.visibility = "hidden"
			}
		}
	}

	function http_object()
	{
		if (window.XMLHttpRequest)
		{
			return new XMLHttpRequest();
		}
		else if(window.ActiveXObject)
		{
			return new ActiveXObject("Microsoft.XMLHTTP");
		}
		else
		{
			document.getElementById('p_status').innerHTML = 'Status: Cound not create XmlHttpRequest Object.  Consider upgrading your browser.';
		}
	}