title: JQuery change text in label
body: <p>Code:</p>
  
  <pre><code>$('#FilesDataTable_length').children()[0];
  </code></pre>
  
  <p>Result: 
  <a href="http://prntscr.com/895z0y" rel="nofollow">http://prntscr.com/895z0y</a></p>
  
  <p>I need to change "Show " to "Show: ". Can anyone help?</p>