Java Script Code Snippet

$(document).ready(function() {
$("#button").click(function(){
    $cityName = document.getElementById("name").value;
    $.post("AddServlet", {
        name:$cityName
    }, function(xml) {
        $("#feedback").html(
            $("result", xml).text()
            );         
    });
});
});

In Servlet

        String name= request.getParameter("name");
        if (name.equals("shahid")) {

            response.setContentType("text/xml");
            out.println("<result>You are shahid</result>");

        }
        else{


            response.setContentType("text/xml");
            out.println("<result>You are not shahid</result>");


        }

This is working fine! but I want to change the background color of div (feedback) accordingly , means if condition true, background color should be Green otherwise background color should be Red (else)