popup window according to CheckBox checked
<p>If user don't checked, I want to show asp:ModalPopupExtender and get numeric value from this form.</p>

<p>I'm using asp.net wizard control. I don't know "finish" button id. Can somebody help me?</p>

<p><img src="http://i.stack.imgur.com/V7ZnU.png" alt="enter image description here"></p>
