title: Button shown disabled in IE9 but shown enabled in IE10
body: <p>I have a button in a webform which is shown as disabled in IE9 while when the same page is opened in IE10 it is shown as enabled.</p>
  
  <p>What is the reason why this behaviour is observed?</p>
  
  <p>BElow is the part of the aspx page.</p>
  
  <pre><code>&lt;div class="controlBox"&gt;
                &lt;asp:Button ID="btnYes" runat="server" OnClick="btnYes_Click" /&gt;
                &lt;asp:Button ID="btnNo" runat="server" OnClick="btnNo_Click" /&gt;
          &lt;/div&gt;
  </code></pre>
  
  <p>And this is how its visibility is controlled</p>
  
  <pre><code>document.getElementById("btnNo").style.visibility = "visible";  
  document.getElementById("btnNo").disabled=false; 
  </code></pre>
  
  <p>Is it got something to do with how disabled property is handled by IE10.</p>