manage the menu-button (android) 1

//Phonegap specific init
	document.addEventListener("deviceready", function(){
	//todo block if not on device
	device.overrideBackButton();
	document.addEventListener("backKeyDown", function(){
	if (actions.length>1) {
	current = actions.pop();
	recent = actions.pop();
	method = recent[0];
	args = recent[1];
	method(args);
	} else {
	BackButton.reset();
	BackButton.exitApp();
	}
	}, false);
	document.addEventListener("menuKeyDown", function(){
	menu();
	}, false);
	// watchAccel();
	}, false);