Guild Bank issue

[Mayron]

Hi, I am trying to hide the emblem of the guild bank frame called "GuildBankEmblemFrame" but it does not recognise the frame name so I looked at Blizzards code at: http://wowprogramming.com/utils/xmlb...uildBankUI.lua

And thought I could do this:

hooksecurefunc("GuildBankFrame_OnLoad", function() 
    GuildBankEmblemFrame:Hide()
end)

But I get: hooksecurefunc(): GuildBankFrame_OnLoad is not a function

This is probably an obvious problem I am causing but does anyone know how I can do this? Thanks!