Changing the appearance of my accordion's currently open panel's header
 Hey guys,
 
This is my HTML code (edited/streamlined of course, but with the structure in tact) for the accordion:
     
      -             <div class='accordion'>
            
                <div class='text-long wo-padding'>
 
      -                         <div class='text-short header wo-margin'>Background</div>
 
      -                 </div>    
                <div class='float-left'>
                    <div class='text-short text-right'>Colour</div>
                    <div class='text-medium wo-float'></div>
                </div>    
                    
                <div class='text-long wo-padding'>
 
      -                         <div class='text-short header wo-margin'>Border</div></div>    
                        <div class='float-left'>
                                  <div class='text-short text-right'>Colour</div>
                                  <div class='text-medium wo-float'></div>
 
      -                         </div>
 
      -                 </div>
               
            </div>
 
     
And now the JS:
       
        -             $(document).ready(function () {
            
                $('.accordion').accordion({
                    header: '.text-long',
                    autoHeight: false
                });
 
        -             });
 
       
Everything is working fine, but I'd like to change the appearance of my 'text-short header' div if it's in the currently open panel. Currently, all divs have the same style/appearance regardless on whether or not they're open. 
I'm not sure if the 'selectedClass' option that was recommended in a book is now deprecated, or if I just wasn't able to supply it the right class name or more likely create the correctly named CSS selector for it.
Any help is much appreciated!
Thanks,
Bardi