title: additional menu in a content box
body: <p>I'm sorry if my problem is already explained somewhere, but I have no idea how actually call it / define my problem for search.</p>
  
  <p>Im "drawing" a homepage in html5 and it works well. I've got my menu on top an it navigates me on the page (like <code>index.html#abc</code>). In one of those content boxes I want to have an additional menu inside the box. I want to load the content depending on what I've chosen / clicked there. I was thinking about including the content with php, but I don't have experience with html5 and php - so don't know if that's even possible. </p>
  
  <pre><code>__________
  |Menu #1 #2# 3#
  ______
  |#1
  ______
  |#2
  ______
  |#3
  |submenu (#a #b #c)
  |content=a (or b/c if i click on that
  _________
  </code></pre>
  
  <p>I'm a newbie! sorry!</p>