button created into a Place Holder OnClientClick not working

[MrSaints]

Hi i am trying to create a Update button for my web page for a control array creasted information, it adds in the CmdUpdate button in fine, however when i click the button nothing happens.\[code\]'code to add in Update form CmdUpdate.Text = "Update" CmdUpdate.OnClientClick = "CmdUpdate_click()" CmdUpdate.ID = "CmdUpdate" PlaceHolder1.Controls.Add(CmdUpdate)'Sub that should be called by the CmdUpdatePrivate Sub CmdUpdate_click(sender As Object, e As EventArgs) lblPatient.Text = Globalvar.TitleNames(5) lblPatientName.Text = Globalvar.TitleNames(6) Call SQLSuff()End Sub\[/code\]