Adding content to jQuery mmenu - but how?

Adding content to jQuery mmenu - but how?

Hey Guys,
and first off all - i'm sorry for this (maybe) dumb question but i can't figure out how to add a second page to jQuery mmenu . I want to use that plugin for a mobile application but i'm not able to change the content when i click on one of those links.

The Plugin works fine but my content is not changing. I already found an answer from 2012: http://jsfiddle.net/hQ7y5/

So that looks but but i'm not able to implement this so, that it is working together with the plugin. The Plugin-Code looks like this:

  1.     <body>
            <div id="page">
                <div class="header">
                    <a href="#menu"></a>
                    Demo
                </div>
                <div class="content">
                    <p><strong>This is a demo.</strong><br />
                        Click the menu icon to open the menu.</p>
                    <p>For more demos, a tutorial, documentation and support, please visit <a href="http://mmenu.frebsite.nl" target="_blank">mmenu.frebsite.nl</a></p>           
                </div>
                <nav id="menu">
                    <ul>
                        <li id="link1"><a href="#">Home</a></li>
                        <li id="link2"><a href="#about">About us</a>
                            <ul>
                                <li id="link3"><a href="#about/history">History</a></li>
                                <li><a href="#about/team">The team</a>
                                    <ul>
                                        <li><a href="#about/team/management">Management</a></li>
                                        <li><a href="#about/team/sales">Sales</a></li>
                                        <li><a href="#about/team/development">Development</a></li>
                                    </ul>
                                </li>
                                <li><a href="#about/address">Our address</a></li>
                            </ul>
                        </li>
                        <li><a href="#" id="link1">Contact</a></li>
                    </ul>
                </nav>
            </div>
        </body>

A Demo from that Plugin can be found here: http://mmenu.frebsite.nl/demo/index.html?demo=menu-contacts but that also doesn't help me.


Hopefully someone here can tell me, how to change the div content to another container i added under that code.