Milonic JavaScript Menu

pls note further, submenu is vertical

I am developing a list based menu my code is

<ul id=MyMenu>
<li>1
<ul>
<li>1.1</li>
<li>1.2</li>
<li>1.3</li>
<li>1.4</li>
<li>1.5</li>
<li>1.6</li>
<li>1.7</li>
</ul>
</li>
<li>2
<ul>
<li>2.1</li>
<li>2.2</li>
<li>2.3</li>
<li>2.4</li>
<li>2.5</li>
<li>2.6</li>
<li>2.7</li ...