With this HTML code you insert the chat in your page.
They put the code in your page before the </body> tag
<TABLE bgcolor="#ADBAC0" border="0" cellspacing="0" cellpadding="0" width="100%">
<TR valign=top>
	<TD>
		<iframe src="http://3dpt.selfip.org" width="100%" height="620" scrolling="auto" frameborder="0" name="input4">
		</iframe>
	</TD>
</TR>
</TABLE>
The HTML code is here for a complete HTML page:
<!DOCTYPE html public "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Chat-Raum.</title>

<style type="text/css">
<!--
* {
  scrollbar-face-color:#CCCCD9;
  scrollbar-track-color:#CCCCD4;
  scrollbar-arrow-color:#445E6B;
  scrollbar-highlight-color:#CCCCCC;
  scrollbar-3dlight-color:#DDDDDD;
  scrollbar-shadow-color:#445E6B;
  scrollbar-darkshadow-color:#20252D;
}

body { background-color:#ABABAB; margin:0px; }
 //-->
</style>

</HEAD>

<BODY>

<TABLE bgcolor="#ADBAC0" border="0" cellspacing="0" cellpadding="0" width="100%">
<TR valign=top>
	<TD>
		<iframe src="http://3dpt.selfip.org" width="100%" height="620" scrolling="auto" frameborder="0" name="input4">
		</iframe>
	</TD>
</TR>
</TABLE>

</BODY>
</HTML>
and the page looks so