javascript - Jquery Mobile Expand Specefic Collapseset -

i have jquery mobile collapsibleset , need open set programmatically.

i have tried sots cant work.

for example have tried.

$("#myset").children(".second").trigger('expand'); $('.second').trigger('expand'); 

i have tried loads more can second 1 expand. here fiddle if helps?

http://jsfiddle.net/ytt9b/1225/

in jquery mobile docs, can see collapsible options

$(document).ready(function () {      $(".second").collapsible({ collapsed: false }); }); 

second

$(".second").collapsible({ collapsed: false }); 

jsfiddle example