title: Setting rounded corner types on jQuery UI Dialog
body: <p>I'm using the jquery dialog plugin and the default is to have all 4 corners of the titlebar rounded.   You can see the markup that the dialog produces here</p>
  
  <p><a href="http://jqueryui.com/demos/dialog/#theming">http://jqueryui.com/demos/dialog/#theming</a></p>
  
  <p>In the that example you can see on the <code>ui-dialog-titlebar</code> div there is a class called <code>ui-corner-all</code>, I would like to change that to <code>ui-corner-top</code>.   Is there a way to set the type of rounded corner class when I initiate the dialog?   </p>
  
  <p>There is the hacky option of editing the jquery UI dialog javascript file to have that class always in there but that seems inflexible.</p>
  
  <p>Thanks</p>