Stuff

<?php
	$nick = trim($_POST["nick"]);
	if ( isset($_POST["nick"]) ) {
		if (strlen($nick) <= 3) { ?>
			<div id="notice" style="font-weight:bold;">Nickname must be atleast 4 characters in length.</div>
			<hr />
			<div id="note">Enter a nickname:</div>
			<form method="post" action="chat.php" onsubmit="send_nick(this); return false;">
				<input type="text" name="n" size="30" />
				<input type="submit" value="Continue ->" name="btnSubmit" />
			</form>
		<? >} else { ?>
			<div id="notice" style="font-weight:bold;">Hello ".strtolower($nick).", Welcome to the chat.</div>
			<hr />
			<div id="container">
				<div id="chat"></div>
			</div>
			<div id="sndText">
				<form id="sndText" method="post" action="chat.php" onsubmit="change('chat',this); return false;">
					<input type="text" name="ctext" size="30" />
					<input type="submit" value="Send" name="btnSend" />
				</form>
			</div>
			<br />
			<?
		}
	}
?>