Generated Source of Later Pages
<html><head></head><body>
<form action=http://sirah...:8081/dbc/servlet/VendingMachine>
<input type=submit name=selection value="Chips">
<input type=hidden name=selection value=”Peanuts">
<input type=hidden name=selection value=”Chips">
</form>
<form action=http://sirah...:8081/dbc/servlet/VendingMachine>
<input type=submit name=selection value="Popcorn">
<input type=hidden name=selection value=”Peanuts">
<input type=hidden name=selection value=”Chips">
</form>
...
</body></html>
Every form now contains hidden fields holding values that were in selections.