title: Found the following on a page - title="header=[] body=[ - how does it work?
body: <p>Go to <a href="http://www.paperbackswap.com/Science-Fiction-Hall-Fame-Volume/book/0765305372/" rel="nofollow">http://www.paperbackswap.com/Science-Fiction-Hall-Fame-Volume/book/0765305372/</a></p>
  
  <p>Scroll down looking for a button labeled "Order This Book" and hover over it.</p>
  
  <p>It displays a multi-line "title"</p>
  
  <p>The source shows:</p>
  
  <pre><code>title="header=[] body=[Did you know that you help the club if you make your Amazon purchases by starting on our site?  Just click here when you want to buy anything from Amazon and your purchase will support PBS!]"
  </code></pre>
  
  <p>Note - if you inspect the entity using Firebug, it shows <code>title=""</code></p>
  
  <p>To see the source that I am showing you, view the source of the page.</p>
  
  <p>Tried to search on <code>title="header[]</code> but Google can't handle it with the double quote and [] characters.</p>
  
  <p>Does anyone know how this is working?</p>
  
  <p>It would appear to be a facility by which the text in "header[]" is displayed, perhaps, as a header line for the "title" and the text in "body[]" is the body of the "title."</p>
  
  <p>Here is another example with line breaks:</p>
  
  <pre><code>title="header=[] body=[- Order this book for $4.94 (price includes S&amp;H).&lt;br /&gt;- If you are a member, please Log In to request it.&lt;br /&gt;- Or join the Club and get this book for 1 credit and a $0.49 swap fee.]"
  </code></pre>
  
  <p>To see the results, hover over the image of a key to the right of the "Order This Book" button.</p>
  
  <p>Bob</p>