Control Name Concatination with VBScript

[APD]

Hi, I have a HTML form with several textboxes named txt1, txt2... txtX, Where X is unknown as the textboxes are generated using a loop
<... name="txt<%=x%>">

In vbscript, how can i concatinate the control names to get the textbox's values. For example:

x = 1
Do While ...
val = txt & x & . value
x = x + 1
Loop

One restriction, due to my application's structure, I cannot use arrays

[sstalder]

Something like this, if you are grabbing the values from a form post.

Dim x:x = 1
Do
    If val = "" Then Exit Do
    val = Request.Form("txt" & x).value
    x = x + 1
Loop