var uppermost = 0, upperZ = 8;

function changeOrder(number){
	if(document.getElementById){
		if(number == uppermost) { return; }
		document.getElementById("sabMenu" + number).style.zIndex = upperZ + 1;
		document.getElementById("menu" + number).style.zIndex = upperZ + 2;
		uppermost = number;
		upperZ += 2;
	}
}