how to send push notification using phonegap and parse

I am creating an android app using php,jquery and phonegap. I have searched so many things in google but i cant find to send push notification. I have seen this Phonegap and Parse.com Push Notifications IOS But i am not clear ho can i get deviceToken.

I have also seen the below

https://parse.com/questions/php-rest-example-of-targeted-push

I understood how to send notification. But without devicetoken how can i send push notification. Can anybosy tell me how can i get the device token.