title: How to auto submit a form with an textbox onchange value?
body: <pre><code>&lt;html&gt;
  &lt;head&gt;&lt;/head&gt;
  &lt;body&gt;
      &lt;div class="col"&gt;
          &lt;form action="#" method="post"&gt;
              &lt;select id="periodname" class="drpdwn" value=" " onchange='myFunction()'&gt;
                  &lt;?php foreach($period as $period): ?&gt; 
                      &lt;option&gt;&lt;?= $period['period']; ?&gt;&lt;/option&gt;
                  &lt;?php endforeach; ?&gt;
              &lt;/select&gt;
          &lt;/form&gt;
      &lt;/div&gt;
      &lt;div class="col" style="width:200px"&gt;
          &lt;form action="myprofile.php" method="post" name='periodGet' id='periodGet'&gt;
              &lt;input name='periodText' autocomplete="off" value="Period"&gt;
              &lt;input type="submit" value="Go"&gt;
          &lt;/form&gt;
      &lt;/div&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>that is partial of my whole system, im asking how to auto submit a form if an textbox value is change without pressing submit button or enter button thank you</p>