Loop playback BGM with enchant.js

This is how to loop playback the BGM with enchant.js.

// Loop playback the bgm
game.assets['bgm.mp3'].play();
game.assets['bgm.mp3'].src.loop = true;

Be careful because loop parameter must set after play.

// This case not loop playback the bgm
game.assets['bgm.mp3'].src.loop = true;
game.assets['bgm.mp3'].play();