<%
if Request.Form("select")<>"" then
       Response.Redirect(Request.Form("select"))
end if
%>   

<html>
<body>

<form action="27basic.asp" method="post">

<input type="radio" name="select" 
value="1basic.asp">
Ejemplo basico 1<br>

<input type="radio" name="select" 
value="2basic.asp">
Ejemplo basico 2<br><br>
<input type="submit" value="Ir">

</form>

</body>
</html>