function checkIndex(){
var pagina = location.pathname;
if(!parent.mainFrame){
top.location.href="<a href="www.lambdaweb.org/casal.asp?p="+pagina;>
}
}
checkIndex();

<%
Dim strFrameUrl
If request.querystring("p") <> "" then
strFrameUrl = request.querystring("p")
else
strFrameUrl = "www.lambdaweb.org/primer.htm"
End if
%>