I created simple dialog window using jquery-ui. It's look like this:
<div id="dialog-form" title="Add Attribute Category">
<input type="radio" id="priceable" name="price" value="true" checked="checked"/> Priceable
<input type="radio" id="priceless" name="price" value="false"/> Priceless
</div>
This code works only in Firefox.

In other browsers like Chrome or IE all radio buttons not checked.

Maybe someone can help me and give advice?
Sorry for my bad English.
UPDATE add whole picture in chrome

the same dialog box in firefox

try:
=checkedand it should work - although your code works fine on all three browsers on my system :salthough your code works fine on all three browsersif I create simple html page and past this code into body it also work fine on my machine, but I need to create dialog window with radio buttons