title: Javascript append text to textarea with line break
body: <p>I have a button that the user can click to merge text from 2 textareas but when they click it the text from the second textarea is added to the end of the first so it is displayed in one line. I would like to add a line break to the end line of text so the appended text is on a new line.</p>
  
  <pre><code>&lt;input type="button" 
         class="copy_submit" 
         value="&lt;&lt; Copy"
         onclick="document.forms['merge_form'].notes1.value += document.forms['merge_form'].notes2.value;" /&gt;
  </code></pre>