title: Hide form field when clicking a button
body: <p>Sorry, I speak English very badly.</p>
  
  <p>I have one form that, when called from various buttons, should hide some fields.</p>
  
  <p>Here are the buttons:</p>
  
  <pre><code>&lt;a  data-target="#call"&gt;Button 1&lt;/a&gt; 
  &lt;a  data-target="#call"&gt;Button 2&lt;/a&gt;
  </code></pre>
  
  <p>Here is the form:</p>
  
  <pre><code>&lt;div id="call"&gt;
  &lt;form&gt;
  &lt;div class="pole1"&gt;Field 1&lt;/div&gt;
  &lt;div class="pole2"&gt;Field 2&lt;/div&gt;
  &lt;/form&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>A form can have only one ID, in my case it is a "call".</p>
  
  <p>How to make that when you click on the "Button 1" only displayed "Field 1"?
  How to make that when you click on the "Button 2" only displayed "Field 2"?</p>