function submenu(action, idName) {	
	if(action == "active") {
		document.getElementById(idName).style.backgroundPosition = "0 -60px";
	}
	else if(action == "out") {
		document.getElementById(idName).style.backgroundPosition = "0 0";
	}
	else if(action == "start") {
		document.getElementById(idName).style.backgroundPosition = "0 -60px";
	}
	else if(action == "start-out") {
		document.getElementById(idName).style.backgroundPosition = "0 0";
	}
}