Spring MVC i18n problem

Hi

I am trying to do internalization in my sample Spring MVC 2.5 web app

mywebapp-servlet.xml

messages.properties

messages_en.properties

messages_de.properties

welcome.jsp

i have placed all properties files within WEB-INF folder along with mywebapp-servlet.xml.

When i am calling welcome.jsp on IE browser,i am getting below mentioned error

org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspTagException: No message found under code 'welcome.title' for locale 'en_US'.

Please help me to solve this error

Your resource bundles must be in your classpath. Put them under WEB-INF/classes.

thanks for the quick reply.
Yes. it worked

With this setup you can change the language in Browser's settings;

How can the language be changed on the web-page? EN DE ES...
What config modifications are required?

Regards