XHTML Compliance :   should be  

I've found an issue

with the dialog and XHTML compliance. ThrushAAX was kind enough to

point out in #jquery-ui that if you don't have the title option set

when working with a page properly served up as application/xhtml+xml

that the dialog will cause an error. The exact error within Firefox is

as follows:

Error: undefined entity

Source File:

Line: 1, Column: 43

Source Code:

<div xmlns="http://www.w3.org/1999/xhtml"> </

Error: uncaught exception: [Exception... "Component returned failure

code: 0x80004003 (NS_ERROR_INVALID_POINTER)

[nsIDOMNSHTMLElement.innerHTML]" nsresult: "0x80004003

(NS_ERROR_INVALID_POINTER)" location: "JS frame ::

http://localhost/res/js/jquery/jquery-1.3.2.min.js :: anonymous ::

line 12" data: no]

Line 38 in jquery.ui.dialog.js is the immediate offender. The simple

fix is to replace instances of ' ' in the script to ' '.

  is an invalid xml entity, and   is the code replacement,

and is recognized in all browsers

Full conversation: http://groups.google.com/group/jquery-ui-dev/browse_thread/thread/baf677570ec9eefc/b55a74c0705b4fce?lnk=gst&q=xhtml#b55a74c0705b4fce