Is it a bug? JS disabled, but works...

[H.Z.]

I found an interesting thing on this page: https://annostore.hu/index.php?page=sho ... t&Itemid=1
Although I disabled JS in Firefox's preferences and denied the site in Noscript, some JS functions still work.
Take a look at that page with installed noscript, and disabled javascript!
If you change the value of "Tételek #", you will see, it changes the number of displayed items automatically (there is no need to click on button "Küldés" as I expected)

I've tried it with Firefox11+Noscript2.3, and Firefox14+Noscript 2.5

Could you help me please? What is it? Bug or feature?

[H.Z.]

Sorry, I've found the solution: http://forums.informaction.com/viewtopi ... nge#p37658
(someone show me)