Code:

<table style="position: fixed; bottom: 50px; left: -0px;z-index:10000;-moz-border-radius :0px 60px 60px 0px ;
border-radius: 0px 60px 60px 0px;
border-width: 4px;


background: #9eb500; /* old browsers */

background: -moz-linear-gradient(top, #9eb500 0%, #404d00 78%, #536200 100%); /* firefox */

background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#9eb500), color-stop(78%,#404d00), color-stop(100%,#536200)); /* webkit */

filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#9eb500', endColorstr='#536200',GradientType=0 ); /* ie */

  border-top: 4px outset black;
  border-left: 0px solid black;
  border-right: 4px outset black;
  border-bottom: 4px outset black;

"><tr><td><iframe src="/chatbox/chatbox.forum?page=front&" id="chatboxpop" scrolling="no" style="width: 800px; height: 400px; display: none;" marginwidth="0" marginheight="0" frameborder="0"></iframe></td><td style="vertical-align: bottom;">
<img src="http://img211.imageshack.us/img211/6862/openo.png" onClick="document.getElementById('chatboxpop') .style.display=(this.src=='http://img211.imageshack.us/img211/6862/openo.png')?'block':'none';
this.src=(this.src=='http://img211.imageshack.us/img211/6862/openo.png')?'http://img443.imageshack.us/img443/9189/closej.png':'http://img211.imageshack.us/img211/6862/openo.png';"/></td></tr>

Personnellement je ne vois pas de chatbox latérale oO

Edit: Autant pour moi, après avoir rafraîchit quatre ou cinq fois, elle apparait.