Trigger Pusher event from javascript

I am using Pusher for real-time page update for my static JavaScript app. when i tried to invoke trigger event its not responding anythin. here is my code

var pusher = new Pusher('5f5ebdf0612fbafff349');  
var myChannel = pusher.subscribe('channe开发者_StackOverflowl_1')  
myChannel.trigger("say_hello", {'name':"Jai", 'age':22});

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You can only trigger events Using JS ( It is not advisable until you clearly know what you are doing) once you have a subscription successfully registered with Pusher for Client Side Triggers.

It is important that you apply additional care when binding to client- prefixed events, since these originate from other users (client side), and could be subject to tampering by a malicious user of your site (any one can modify and execute your JS).

Read this for getting acces to client side event triggering: http://pusher.com/docs/client_api_guide/client_events#trigger-events