JQuery with mask plugin not working in Chrome

Im using JQuery Mask Plugin: http://plugins.jquery.com/mask/

My script:

<script type="text/javascript" language="javascript">
            $(document).ready(function () {
                $(".txtday").mask('Z99', { reverse: true, translation: { 'Z': { pattern: /[0-1]/, optional: true}}, placeholder:"%" });
            });
        </script>

<asp:TextBox runat="server" ID="txtday0" Width="25" CssClass="txtday" />

      

        
        
        
      

    

Works fine in IE 11, but in Chrome it just displays as a normal textbox without a mask.

Im coding asp.net using Visual Studio 2010.

If anyone knows about this. Thanks in advance.