Accordion - How to select header content

Accordion - How to select header content

I am very new to jQuery, so please forgive what might be a simple question
 
I have a jQuery Accordion working well.  I have implemented a Change event function.  How do I fetch the selected header's text content?   That it, how do I access the text from the <a> tag?
 
      < a href ="#" class ="ui-widget-header"> ... some text ... </ a >
 
Or, how to I access the ui.newHeader and/or ui.newContent objects
      
      change:
function (event, ui) {
         ...
      }
 
A small code sample would be very much appreciated! Thanks.