title: Bootstrap Multi-Select Form submit twice
body: <p>I'm having an issue using bootstrap-multiselect and ajax. </p>
  
  <p><strong>My Form</strong> :</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;form class="fill" method="POST" id="inputForm"&gt;  
    &lt;select id="SelectIDExample"&gt;
      &lt;option value="1"&gt;Option 1&lt;/option&gt;
      &lt;option value="2" selected="selected"&gt;Option 2&lt;/option&gt;
      &lt;option value="3" &gt;Option 3&lt;/option&gt;
      &lt;option value="4"&gt;Option 4&lt;/option&gt;
      &lt;option value="5"&gt;Option 5&lt;/option&gt;
      &lt;option value="6"&gt;Option 6&lt;/option&gt;
    &lt;/select&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p><strong>My libraries</strong>:</p>
  
  <ul>
  <li>css/bootstrap.min.css</li>
  <li>js/jquery.min.js</li>
  <li>js/bootstrap.min.js</li>
  <li>js/bootstrap-multiselect.js</li>
  <li>bootstrap-multiselect.css</li>
  </ul>
  
  <p><strong>Here's a small snippet of my JavaScript</strong>:</p>
  
  <pre class="lang-js prettyprint-override"><code>$(document).ready(function() {
    $('#SelectIDExample').multiselect({
      buttonWidth: '400px',
      dropRight: true,
      onChange: function(option, checked, select, event) {
        event.preventDefault();
        return false;
      },
  
    });
  
    $('#inputForm').change(function(e) {
      e.preventDefault();
      var form = $(this);
      var post_data = form.serialize();
  
      $.ajax({
        type: 'POST',
        data: post_data,
        success: function() {
          alert("I am Called...");
        }
      });
    });
  });
  </code></pre>
  
  <p><strong>Problem</strong></p>
  
  <p>Whenever I change the Option's, I am alerted twice "I am Called...", meaning the form is submitted twice. </p>
  
  <p><strong>Expectation</strong></p>
  
  <p>I want this to be submitted once or called once. </p>
  
  <p><strong>Note</strong>:
  I know that with Simple Select option, the alert is called once, but when I use Bootstrap multi-select, the alert is called twice. </p>
  
  <p>How can I fix this?</p>
  
  <p>I need have control on submit of the form and do not required it from Bootstrap multiselect or any other hidden methods from the  plugin that use. </p>