// JavaScript Document
function showSubMenu(id) {
	switch(id) {
		case 1:
			document.getElementById("navi-sub-img-1").style.display="none";
			break;
		case 2:
			document.getElementById("navi-sub-img-2").style.display="none";
			break;
		case 3:
			document.getElementById("navi-sub-img-3").style.display="none";
			break;
		case 4:
			document.getElementById("navi-sub-img-4").style.display="none";
			break;
		case 5:
			document.getElementById("navi-sub-img-5").style.display="none";
			break;
	}
}

function hideSubMenu(id) {
	switch(id) {
		case 1:
			document.getElementById("navi-sub-img-1").style.display="block";
			break;
		case 2:
			document.getElementById("navi-sub-img-2").style.display="block";
			break;
		case 3:
			document.getElementById("navi-sub-img-3").style.display="block";
			break;
		case 4:
			document.getElementById("navi-sub-img-4").style.display="block";
			break;
		case 5:
			document.getElementById("navi-sub-img-5").style.display="block";
			break;
	}
}