I am using the EpiServer:PageTree control to generate a nested <ul><li> list in the format below.

However I am also using a dropdown menu system called UDM which requires that the class and id "udm" are on the first <ul> tag.

http://www.udm4.com/manual/quickstart/#quickstart-qsetup

The EpiServer:PageTree IndentTemplate in the user control markup is used to generate the nested <ul> tags in each <li>.
However the IndentTemplate means that the <ul> tag is always the same at all levels and doesn't allow me to have <ul id="udm" class="udm"> just for the first <ul>

I have tried to acheive this in the code behind but haven't been able to find the correct methods to use.

<ul id="udm" class="udm">
	<li><a href="/">Home</a></li>
	<li><a href="/about/">About</a>
         <ul>
            <li><a href="/about/item1/">Item 1</a></li>
            <li><a href="/about/item2/">Item 2</a></li>
         </ul>
     </li>
	<li><a href="/contact/">Contact</a></li>
</ul>

Hope someone can point me in the right direction.

Regards

David Green