This plugin adds a Model to add browsers to notify that is old.

To show the message you can use the templatetag oldbrowser:

{% load oldbrowser_tags %}

<div id="oldbrowser">
    <p>
        {% oldbrowser %}
    </p>
</div>

Or you can use the ifoldbrowser templatetag:

{% load oldbrowser_tags %}

{% ifoldbrowser %}
    ({{ bad_user_agent }}) your browser is too old, update it.
{% else %}
    Everything is ok.
{% endifoldbrowser %}

In model you can put regular expresion, so you can detect multiple old
browsers in one.
