B4J Question ABMTable - how to hide the header?

Dim tbl1 as ABMTable
tbl1.Initialize(page, "tbl1", True, False, True, "tbl1theme")
...
page.Refresh
page.FinishedLoading

' use AFTER page refreshed (or when the table is loaded/refreshed)
' ID must be lowercase and, if used in e.g. a modalsheet or container this name may vary
' use Chrome - F12 - elements to find the correct id
Dim TableID As String = "tbl1"    
Dim Script As String = $"$('#${TableID} > thead').css('display', 'none')"$
page.ws.eval(Script, Null)
page.ws.flush