asp:Label and Javascript

[OneSource]

Hi,

This should be simple ... I want to determine the value of an asp:label control in a javascript function on the same aspx page

<script language="javascript">
function GetDecisionTreeValue(){
				if (document.Form1.lblList.Value == 'Roles') {
				window.open('RoleDecisionTree.aspx','Lookup','scrollbars=yes,resizable=yes,status=yes,width=600,height=250');
				}
			}
		</script>

Any ideas?

Thx!