Ajax Captcha

[santoshkumar savadatti]

Iam using Ambethia recaptcha plugin.But, i need Ajax recaptcha.Hence, to display the recaptcha, i'm using the following in my js.erb:

$('#cap_<%=@video.id%>').each(function () {
    Recaptcha.create('6LcUkcISAAAAAHkKSVVg3BAYbwGNUukOmUZp8I9j', this);
});

and my controller code is:

  def vote
		if verify_recaptcha
		@video=Video.find(params[:id])
		@video.increment!(:votes)
		respond_to do|format|
		format.js  
	    end
    else
       @video=Video.find(params[:id])
       respond_to do|format|
		format.js  (render 'failure.js.erb')
	 end
 end

The captcha is displayed.But when the vote button is clicked, nothing happens.If i remove the recaptcha, the voting works fine and displays a success message.