สอบถามการเขียน code textbox popup asp.net in vb.net

	Dim hplDetail As HyperLink = DirectCast(e.Row.FindControl("hplDetail"), HyperLink)
	If (hplDetail IsNot Nothing) Then
		hplDetail.NavigateUrl = "JavaScript:void(0);"
		hplDetail.Attributes.Add("OnClick", "JavaScript:OpenPopup('Details.aspx?CusID=" & e.Row.DataItem("CustomerID") & "');")
	End If