How can I replicate the "Add heading" functionality of the left quick launch bar with the client side object model? The task looks simple. Update the left bar of several sites by with a few links grouped by header like: Link group 1 Link 1 Link 2 Link group 2 Link 3 I can create the nodes and arrange them, but the "Link group x" nodes also turn into hyperlinks, even if I don't set the URL property of the NavigationNodeCreationInformation object in Sharepoint 2010, VB. How can I either create a blank group without link? The related part of the code (removed the actual links)

nciHead.Title = "Group 1"
nciHome.Title = "Homepage"
nciHead.IsExternal = True 'otherwise it fails
nciHome.Url = "link1"
nd = qlColl.Add(nciHead)
nd.Children.Add(nciHome)
nd.Update()
context.ExecuteQuery()