title: How get value in parent element? (JQuery)
body: <p>How can i get value in <code>&lt;tr cost="xx.xx"&gt;</code> if i click on some button with <code>id="minus"</code> or <code>id="plus"</code>?</p>
  
  <p><a href="http://jsfiddle.net/YD9uB/3/" rel="nofollow">http://jsfiddle.net/YD9uB/3/</a></p>