function menuOff(whichMenu){
	var menuID = new Array(2)
	menuID[1]= "sub1";
	menuID[2]= "sub2";
	menuID[3]= "sub3";
	menuID[4]= "sub4";
	menuID[5]= "sub5";
	menuID[6]= "sub6";
	menuID[7]= "sub7";
	menuID[8]= "sub8";
	
	if (whichMenu != 0) {
	document.getElementById(menuID[whichMenu]).style.display = 'block';
	}
	
	for (i=1; i<=2; i++) {
	if (whichMenu != i){
			document.getElementById(menuID[i]).style.display  = 'none';
			}
	}

};