AJAX core library: possible breaking change, readystatechange functions are now called with the XHR instance as the first parameter, to allow requests to run in parallel. This means much better stability but may break some applets (compatibility hack is included)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Firebug</title>
<link rel="stylesheet" type="text/css" href="firebug.css">
</head>
<body>
<div id="toolbar" class="toolbar">
<a href="#" onclick="parent.console.clear()">Clear</a>
<span class="toolbarRight">
<a href="#" onclick="parent.console.close()">Close</a>
</span>
</div>
<div id="log"></div>
<input type="text" id="commandLine">
<script>parent.onFirebugReady(document);</script>
</body>
</html>