MS Access VBA Sub Routine (Clueless)

Was hoping someone could help me out a sec, doing some database work and basically trying to shorten some code. The example I'll use is one of the smaller bits to make it easy to explain what I'm trying to achieve.

Code:

Private Sub qst_11_Change()

If qst_11 = "Other" Then
Me.Form!qst_11_other.Visible = True
Else
Me.Form!qst_11_other.Visible = False
End If

End Sub

Essentially all this does is say that on qst_11 changing value (its a combo box), if "Other" is selected I want it to show qst_11_other (a text box), if its any other value I want qst_11_other to remain hidden.

That all works fine, but for every combo box I want to do this with, its a copy and paste and mistakes can be made. So what I wanted to do was turn it into a VBA Sub procedure. I came up with something along the following lines in a module but clearly my syntax is totally wrong and I don't know how to call the sub or pass the required variables to it:

Sub HideMe(varFieldNumber As String, varFieldCondition As String)

If qst_varFieldNumber$ = varFieldCondition$ Then
Me.Form!qst_varFieldNumber$_other.Visible = True
Else
Me.Form!qst_varFieldNumber$_other.Visible = False
End If

End Sub

I would then assume I would just be able to write the following in a form to call the routine and pass the variables:

call HideMe(11,other)

However as you might guess, it throws up nice errors, specifically with relation to the variable syntax, it doesn't like varFieldNumber$, I've tried $varFieldNumber and a number of other things but it doesn't like it. Any ideas would be most appreciated.

Cheers