title: addEventListener overwrites other event actions?
body: <p>Does addEventListener overwrites previously defined actions for a particular event?For example,</p>
  
  <pre><code>&lt;input type="text" name="ele" id="eleID" onfocus="doSomeThing();"/&gt;
  </code></pre>
  
  <p>Now if I add another action for the same event,will both both function get executed?</p>
  
  <pre><code>eleID.addEventListener('focus',doSomethingElse,false);
  </code></pre>
  
  <p>If <code>doSomethingElse()</code> overwrites <code>doSomeThing()</code>, is there any other way to do it?</p>