title: How to get the id dropdown list on click event
body: <p>This is my jspPage.</p>
  
  <pre><code>&lt;select id="class_Teacher" name="classTeacher" style="height:25px; width: 190px;" onchange="Class(this.id)"&gt;
  &lt;option id="1"&gt;Manager&lt;/option&gt;    
  &lt;option id="2"&gt;Supervisor&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>And here is javascript</p>
  
  <pre><code> function Class(str)
  {
      alert(str);
  }
  </code></pre>
  
  <p>i want to get the id of Option on onchange Event. Thanks :)</p>