title: html Input Button onclick=display:None
body: <p>I placed a html button on my page and I want to hide or show a control. but following code is not working</p>
  
  <pre><code>&lt;input type="button" name="Button1" value="Show/Hide Phonetics Search" onclick="document.getElementByID('MSOZoneCell_WebPartWPQ7').style.display='none';" style="width: 225px; height: 40px;"/&gt;
  </code></pre>