title: htm form to disappear after submission
body: <p>I am a bit new to coding. I have made a HTML form which is posting to one website after submission and is also landing on the other page for acknowledgement. but my form page is not disappearing. i am using google sites for this form so cant use any scripting language. Have to rely on html only</p>
  
  <pre><code>&lt;form action="https://www.salesforce.com/servlet/servlet.WebToCase?encoding=UTF-8" method="POST"&gt;
  </code></pre>
  
  <p>
  </p>
  
  <pre><code>    &lt;!-- ---------------------------------------------------------------------- --&gt;
      &lt;!-- NOTE: These fields are optional debugging elements. Please uncomment --&gt;
      &lt;!-- these lines if you wish to test in debug mode. --&gt;
      &lt;!-- &lt;input type="hidden" name="debug" value=1&gt;                              --&gt;
      &lt;!-- &lt;input type="hidden" name="debugEmail" value="smoiz88@gmail.com"&gt;       --&gt;
      &lt;!-- ---------------------------------------------------------------------- --&gt;
      &lt;label for="first_name"&gt;First Name&lt;/label&gt;
      &lt;input id="first_name" maxlength="40" name="first_name" size="40" type="text" required /&gt;
      &lt;br&gt;
      &lt;label for="last_name"&gt;Last Name&lt;/label&gt;
      &lt;input id="last_name" maxlength="40" name="last_name" size="40" type="text" required /&gt;
      &lt;br&gt;
      &lt;label for="email"&gt;Email&lt;/label&gt;
      &lt;input id="email" maxlength="80" name="email" size="40" type="text" required /&gt;
      &lt;br&gt;
      &lt;label for="phone"&gt;Phone&lt;/label&gt;
      &lt;input id="phone" maxlength="40" name="phone" size="40" type="number" /&gt;
      &lt;br&gt;
      &lt;label class="label"&gt;Site&lt;/label&gt;
      &lt;select class="select" id="Site" name="site" title="Site"&gt;
          &lt;option value="None"&gt;None&lt;/option&gt;
          &lt;option value="Armadale"&gt;Armadale&lt;/option&gt;
          &lt;option value="Elsternwick"&gt;Elsternwick&lt;/option&gt;
          &lt;option value="Hawthorn"&gt;Hawthorn&lt;/option&gt;
          &lt;option value="Manila"&gt;Manila&lt;/option&gt;
          &lt;option value="UK"&gt;UK&lt;/option&gt;
          &lt;option value="Other"&gt;Other&lt;/option&gt;
      &lt;/select&gt;
      &lt;br&gt;
      &lt;br&gt;
      &lt;label class="label"&gt;Salesforce Profile&lt;/label&gt;
      &lt;select class="select" id="Profile"&gt;
          &lt;option value="None"&gt;None&lt;/option&gt;
          &lt;option value="Acquire Career Champion"&gt;Acquire Career Champion&lt;/option&gt;
          &lt;option value="Acquire Career Advisor"&gt;Acquire Career Advisor&lt;/option&gt;
          &lt;option value="Acquire Career Hunter"&gt;Acquire Career Hunter&lt;/option&gt;
          &lt;option value="Acquire Data Analyst"&gt;Acquire Data Analyst&lt;/option&gt;
          &lt;option value="Acquire Retention Specialist"&gt;Acquire Retention Specialist&lt;/option&gt;
          &lt;option value="Acquire Training Admin"&gt;Acquire Training Admin&lt;/option&gt;
          &lt;option value="Acquire Qualifier"&gt;Acquire Qualifier&lt;/option&gt;
      &lt;/select&gt;
      &lt;br&gt;
      &lt;br&gt;
      &lt;label for="fault"&gt;Fault Title&lt;/label&gt;
      &lt;input id="fault" maxlength="20" name="fault" size="30" type="text" required /&gt;
      &lt;br&gt;
      &lt;br&gt;
      &lt;label&gt;Fault Type&lt;/label&gt;
      &lt;select class="select" id="Type"&gt;
          &lt;option value="None"&gt;None&lt;/option&gt;
          &lt;option value="Password Reset"&gt;Password Reset&lt;/option&gt;
          &lt;option value="Report Required"&gt;Report Required&lt;/option&gt;
          &lt;option value="Login Details"&gt;Login Details&lt;/option&gt;
          &lt;option value="End Of Employment"&gt;End Of Employment&lt;/option&gt;
          &lt;option value="File Merge"&gt;File Merge&lt;/option&gt;
          &lt;option value="Insufficient Privilege"&gt;Insufficient Privilege&lt;/option&gt;
          &lt;option value="Other"&gt;Other&lt;/option&gt;
      &lt;/select&gt;
      &lt;br&gt;
      &lt;br&gt;
      &lt;label for="description"&gt;Description&lt;/label&gt;
      &lt;textarea name="description"&gt;&lt;/textarea&gt;
      &lt;br&gt;
      &lt;div id="submit"&gt;
          &lt;input type="submit" name="submit"&gt;
      &lt;/div&gt;
  
  &lt;/form&gt;
  </code></pre>
  
  <p>any suggestions how can i make it disapper once it is submitted.</p>