Someone

<script langauge="JavaScript" type="text/javascript"> 
function doMenu(item) 
	{ 
		obj=document.getElementById(item); col=document.getElementById("x" + item); 
	if (obj.style.display=="none") 
	{ 
		obj.style.display="block"; col.innerHTML="[-]";
	} 
	else 
	{ 
		obj.style.display="none"; col.innerHTML="[+]"; 
	}
} 
</script>

<a href="javascript:doMenu('main');" id=xmain>[+]</a> 
Main Item <div id=main style="margin-left:1em"> 
<a href=#>Test</a><br> 
<a href=#>Test</a><br> 
<a href=#>Test</a> 
</div>