title: jQuery: .append() + replace text with random number in <textarea>?
body: <p><strong>Simplified Introduction:</strong> I am trying to append text to a already populated  element, without messing with it, in which that appended text is also a random number each page load.</p>
  
  <p><strong>The first issue:</strong> I've figured out how to append text with in a  element, but I  can't seem to figure out how to change the appended text to a random number in a  element. I've figured a few ways to do it within elements that are standard  or  elements, but appending elements to a  doesn't work correctly from my understanding.</p>
  
  <p>HTML:</p>
  
  <pre><code>&lt;textarea id="status"&gt;test https://twitter.com/test&lt;/textarea&gt;
  </code></pre>
  
  <p>Tested page URL:
  <a href="https://twitter.com/intent/tweet?url=&amp;text=test%20https://twitter.com/test&amp;original_referer=" rel="nofollow noreferrer">https://twitter.com/intent/tweet?......</a></p>
  
  <p>.Append() code used:</p>
  
  <pre><code>function callback() {
      $("#status").append(' aaa');
  };
  $(document).ready(function () {
      window.setTimeout(callback, 100);
  });
  </code></pre>
  
  <p><strong>The second issue:</strong> So I've found a better bit of code that I would have used in a situation that isn't  based (<strong>in link below</strong>), its probably the best solution I seek,  however it's function runs on click, I would like this to run every time the page loads; replacing appending text to a random number, not based on a click event method.</p>
  
  <p>What I would like to happen:</p>
  
  <pre><code>&lt;textarea id="status"&gt;test https://twitter.com/test 798&lt;/textarea&gt;
  </code></pre>
  
  <p>Footnote: the text excluding the random number between "> … 798&lt;", is assumed to be random with what the user types.</p>
  
  <p><a href="http://jsfiddle.net/h5u5b1wk/1/" rel="nofollow noreferrer">The sandbox Fiddle with code</a></p>