.on() not working in 'Page transition events'

.on() not working in 'Page transition events'

I'm using JSDT and it shows that .live() is deprecated.

so using .on() like

$('#wow').on('pagebeforeshow',function(event){
alert("haha");
});

it didn't work (.live works well)

but when using .on like

$(this).on('pagebeforeshow',function(event){
alert("haha");
});

it works.
so i'm using .live() now, but using .on some day.
Thanks for taking a look and helping me out - any pointers appreciated.

development environments are jquery.mobile-1.2.0, jquery-1.8.2 and chrome.