Cordova blackberry convenience key

I want to reprogram my Blackberry convenience key using Cordova.

document.addEventListener("volumeupbutton", onVolumeUpKeyDown, false);

function onVolumeUpKeyDown() {
    // Handle the volume up button
}

I get the above code to handle the volume keys. But how can I handle blackberry convenience key in Cordova?

Any help will be appreciated

from Cordova blackberry convenience key