title: JS statement separator with commas
body: <p>I found the following js sample and am confused by the syntax.  Notice the statements are separated by commas instead of semicolons.  Are commas a valid statement separator in js?  I have not seen this before.</p>
  
  <pre><code>    $('selector').each(function () {
  
              this.onclick = function () {
                  this.select();
              },
  
              this.onblur = function () {
              },
  
              this.onfocus = function () {
              },
  
              this.onkeyup = function () {
              }
      });
  </code></pre>