possible bug. (this.each is not a function)

possible bug. (this.each is not a function)


hi.
please help me understand and solve the following conflict.
this code:
<html>
<head>
<title>title</title>
<script type="text/javascript" src="http://www.livejournal.com/
js/??core.js,dom.js"></script>
<script type="text/javascript" src="http://code.jquery.com/
jquery-1.2.3.js"></script>
</head>
<body>
body
</body>
</html>
fires up
Error: this.each is not a function
Source File: http://code.jquery.com/jquery-1.2.3.js
Line: 1332
as i understand, an arbitrary script ( http://www.livejournal.com/js/??core.js,dom.js
in the case ) can cause the error. i consider this a bug.
thank you.