Cacher is the code snippet organizer for pro developers

// =========================================================================
  // Go to sleep mode when the Page tab is inactivated
  // var muted_state_before_blur;// CJS mute while focus lost
  var is_hidden = false;
  
  $(document).on('visibilitychange', function (e) {
    
    console.log("visibilitychange: ", document.visibilityState );
    
    if( document.visibilityState == "hidden" ){
      is_hidden = true;
      // console.log("# BLUR");
      // muted_state_before_blur = CJSound.muted;
      // CJSound.muted = true;
    }else{
      is_hidden = false;
      // console.log("# FOCUS");
      // CJSound.muted = muted_state_before_blur;
    }

  });
  // =========================================================================