JQuery - BlockUI & asp:Button controls

Using the BlockUI Jquery library to create a Yes/No prompt on the click event of an asp:Button control

* There were problems copying/pasting the jQuery function into here - So I had to screenshot for now

<div><asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" /></div>

<div id="question" style="display:none; cursor: default"> <h1>Would you like to contine?.</h1> <input type="button" id="yes" value="Yes" /> <input type="button" id="no" value="No" /> </div>