title: image button onclick event not fired
body: <p>I have created a HTML Image button in a web application with an <code>onclick</code> event handler. But the event is not firing. I am using the code below to create a button and its <code>onclick</code> event handler.</p>
  
  <pre><code>&lt;input type="image" runat="server" src="Plan_search/images/buy.png" onclick="goto_click" /&gt;
   protected void goto_click(object sender, EventArgs e)
   {
              try
              {
  
              }
              catch(Exception e1)
              {
                  throw;
              }
    }
  </code></pre>