Form Element

I have a form that has dynamically assigned element names. How would I do the following:
(original code)
sub OnControlLoad
set Control = Document.getElementById("MsRdpClient")
if Not Control is Nothing then
if Control.readyState = 4 then
Document.all.connectbutton.disabled = FALSE
end if
end if
end sub

I want to get this line
Document.all.connectbutton.disabled = FALSE
to loop and look like
Document.all.connectbutton1.disabled = FALSE
Document.all.connectbutton2.disabled = FALSE
Document.all.connectbutton3.disabled = FALSE
etc....up to a predefined value