title: Web Page Button is not getting Enabled after triggering Jquery
body: <p>The Scenario is:
  I have a checkbox and a button inside my web page ,when we manuallly checks the check box button is getting enabled ,but when i use the jquery to automate this process button is not getting enabled after checkbox is checked:</p>
  
  <p>following are the steps i am automating:</p>
  
  <ul>
  <li>user checks the checkbox-----checking fine </li>
  <li>user clicks on button------button is not getting enabled</li>
  </ul>
  
  <p>below the jquery i am using for checking the checkbox:</p>
  
  <pre><code>$("#id").attr( "checked", "checked" )
  </code></pre>
  
  <p>In HTML:
  CheckBox:</p>
  
  <pre><code>&lt;input id="preaccountconfirm" class="scp-input-check" type="checkbox" value="1" name="preaccountconfirm" tabindex="20"&gt;
  </code></pre>
  
  <p>Button:</p>
  
  <pre><code>&lt;button id="button-next" type="button" disabled="" class="scp-button-next scp-disabled" tabindex="1000"&gt;Next&lt;/button&gt;
  </code></pre>