Web App for AS400 database

Hi Guys,

Ok first of all just to let you know I'm a newbie to AS400.

I have joined a new company and here we have AS400 running which contains
prices, stock availability etc... Currently our customers ring us to enquire
price and availability for a part and someone from customer services dept
will search for the part using the emulator on there PC and read out the
results to the customer.

We would like to provide this facility of searching a part price and
availability etc directly to our customers. We have massive amounts of
customers across the country so best way would be to design a web app and
make it available on our website.

My question is that first of all which programming language should I use to
program the we app i.e. asp or jsp or php or any other suggestions? And how
would I link the app with the AS400 database? When suggesting please keep in
mind the app has to be efficient because 100s of companies would be
interrogating the database simultaneously.


Many thanxxxx

Laura