Producing a nested collapsible list for a sidebar Options

[Melinda]

Hi,

Could I get some assistance with producing code for a collapsible list please?

Ive fond some tags/ code but I dont know what the ahref should refer to.

CODE

<ul id="someID">
  <li>The January Garden
    <ul><a href="java script:cl_expcol('ex3');">[+]</a>
      <li><a href="someHref">The lawn</a></li>
      <li><a href="someHref">The Greenhouse</a></li>
      <li><a href="someHref">Vegetables</a></li>
      <li><a href="someHref">FRuit</a></li>
    </ul>
  </li>