title: Get same html Element without id using JavaScript
body: <p>I am getting element with <code>event.target</code> or <code>event.srcElement</code>.</p>
  <p>What information of event can I save to know exactly the previously element selected, without set a id?</p>
  <p>If I close the page, how to get the same element?</p>
  <p>Save all <code>parentNode</code> seems to be a very slow way to get the element again.</p>
  <p>Is there a more efficient way?</p>
  <p>The page will contain a fixed number of elements. But this page can not be changed, I could not include the id attribute. However, I would mark the last tag that was clicked when the user open the page again.</p>