li.treeMenu_opened ul {
	display: block;
}
li.treeMenu_closed ul {
	display: none;
}


  ul#Navigation {
    width: 180px;
    margin: 0; 
    padding: 0;
    border: 1px solid black;
    background-color: silver;
  }
  

  ul#Navigation li {
    list-style: none;

    margin: 0;
  }
  
  ul#Navigation li ul {
    margin: 0 0 0 0; 
    padding: 0;
  }
  ul#Navigation li ul li {
    margin: 0 0;
  }


  ul#Navigation h1 {
    
    padding: 3px;
    text-decoration: none; 
    font-weight: bold;
    font-size: 12px;
    border: 1px solid black;
    border-left-color: white; 
    border-top-color: white;
    color: #000;
    background-color: #aaa;
    margin: 0;
  }
  
  ul#Navigation h2 {
    display:block;
    padding: 3px;
    margin: 0;
    text-decoration: none; 
    font-weight: bold;
    border: 1px solid black;
    border-left-color: white; 
    border-top-color: white;
    color: maroon; 
    background-color: #ccc;
    font-size: 12px;
  }

  ul#Navigation h2:hover {
    border-color: white;
    border-left-color: black; 
    border-top-color: black;
    color: white; 
    background-color: gray;
    font-size: 12px;
  }
  

  ul#Navigation a {
    display:block;
    padding: 3px;
    text-decoration: none; 
    font-weight: normal;
    border: 1px solid black;
    border-left-color: white; 
    border-top-color: white;
    color: black; 
    background-color: #ddd;
  }

  ul#Navigation a:hover {
    border-color: white;
    border-left-color: black; 
    border-top-color: black;
    color: black; 
    background-color: #e8edff;
  }



 /* 1. Unterebene */
 ul#Navigation li ul li a{
    padding-left: 10px;
    background-color: #fff;
  }
  
 ul#Navigation li ul li  h1{
    padding-left: 10px;
    background-color: #e6e6e6;
    font-size: 12px;
  }
  
 ul#Navigation li ul li  h2{
    padding-left: 10px;
    background-color: #e6e6e6;
    font-size: 12px;
  }
  
 /* 2. Unterebene */
 ul#Navigation li ul li  ul li a {
    padding-left: 20px;
  }
  
 ul#Navigation li ul li  ul li h1 {
    padding-left: 20px;
    background-color: #f2f2f2;
    font-size: 11px;
  }
  
 ul#Navigation li ul li  ul li h2 {
    padding-left: 20px;
    background-color: #f2f2f2;
    font-size: 10px;
  }
  
 /* 3. Unterebene */
 ul#Navigation li ul li  ul li  ul li a {
		padding-left: 30px;
	}

 ul#Navigation li ul li  ul li  ul li h1 {
		padding-left: 30px;
		background-color: #F9F9F9;
		font-size: 11px;
 }
 
  ul#Navigation li ul li  ul li  ul li h2 {
 		padding-left: 30px;
 		background-color: #F9F9F9;
 		font-size: 10px;
 }