ASP function for SQL Injection Protection

[indigojo]

Can anyone help me with an ASP function that does something like below and one that I can include in all key pages as an include:

If page is Detail.asp? then only allow numerics and 5 characters max

or

If page is Items.asp? then only allow numerics and 4 characters max

or

If page is order.asp? then only allow numerics and 3 characters max

[stevelibby]

why not use a select case
something like
select case page
case "detail"
check length & numeric
result true /false
case "items"
check length & numericitems
result true /false
end select

[indigojo]

Thanks stevelibby, i'll try this