popupBehavior

[barry]

1. Using the ASP.NET 2.0 AJAX Futures January CTP
2. Have a dropdownlist defined in a <asp:UpdatePanel
3. popupBehavior = $create(Sys.Preview.UI.PopupBehavior, {'parentElement'
:$get('chooseDepartment'),'positioningMode'
:Sys.Preview.UI.PositioningMode.BottomLeft}, null, null, toolTipDiv);
4. chooseDepartment is the dropdownlist and the toolTipDiv is the literal
that the hover will show
5. code is located in function pageLoad(sender , e)
6. problem is the following abend takes place when executing line 3
Sys.ArgumentUndefinedException; value cannot be undefined
Parameter name: type

thanks