jquery - Isotope - Start with specific category rather than All elements -

i have small issue isotope plugin. when web page loaded, isotope display elements. i'd have display single category instead. how can achieve it?

thanks in advance help!

just supply filter in options of initial call isotope select items want:

$('#someid').isotope({filter: '.someclassonmycategoryelements'}); 

ps. if show existing code, have context work :)