title: How to stop all p:poll with event onclick button
body: <p>Example, i have 20 charts. there are have time refresh different. When <code>updateChart</code>, i'll dosomething and update success.</p>
  
  <pre><code>&lt;c:foreach var="chart" items="#{bean.charts}&gt;
    &lt;p:poll interval="#{chart.timeRefresh}" listener="#{bean.updateChart(chart)}"/&gt;
    &lt;div&gt;..draw one-by-one chart here.&lt;/div&gt;
  &lt;/c:foreach&gt;
  &lt;p:commandButton id="showInforDialog" actionlistener="#{bean.dosomething()}" onsuccess="PF('dlgInfor').show();"/&gt;
  </code></pre>
  
  <p>for example, alls chart have same time refresh and equal 1s. when i click button <code>btnStopAllPoll</code> will call <code>dosomething()</code> and will show dialog, but I have to wait a very long time. I think 20 request are processed in turn.
  i have one idea, create <code>button</code> and <code>onclick</code> will stop all poll i tried :</p>
  
  <pre><code>&lt;p:commandButton id="stoppAllPoll" onclick="stopAllPoll()"/&gt;
  </code></pre>
  
  <p>but I do not know how to do it. please help me! or you have new idea.
  i don't understand why 20 request are processed in turn, or I'm wrong</p>