Create animation at runtime

[shapper]

Hello,

I need to create the following code at runtime:

<ajaxToolkit:UpdatePanelAnimationExtender ID="upae"
BehaviorID="animation" runat="server" TargetControlID="updatePanel">
<Animations>
<OnUpdating>
<Parallel duration="0">
<ScriptAction Script="onUpdating();" />
</Parallel>
</OnUpdating>
</Animations>
</ajaxToolkit:UpdatePanelAnimationExtender>

I am having problems in creating the animation at runtime

Dim upaTags as new UpdatePanelAnimationExtender
With upaTags
.ID = "upaTags"
.OnUpdating = ????????????????????????????????????????????
.TargetControlID = "upTags"
End With

Could someone help me out?

Thanks,
Miguel