function showwMenu(iid,obj){
	switch(iid){
		case 1:
			hiddenAll();
			obj.style.cursor="hand";
			document.getElementById("menu_01").style.display="block";
			break;
		case 2:
			hiddenAll();
			obj.style.cursor="hand";
			document.getElementById("menu_02").style.display="block";
			break;
		case 3:
			hiddenAll();
			obj.style.cursor="hand";
			document.getElementById("menu_03").style.display="block";
			break;
		case 4:
			hiddenAll();
			obj.style.cursor="hand";
			document.getElementById("menu_04").style.display="block";
			break;
		case 5:
			hiddenAll();
			obj.style.cursor="hand";
			document.getElementById("menu_05").style.display="block";
			break;
		case 6:
			hiddenAll();
			obj.style.cursor="hand";
			document.getElementById("menu_06").style.display="block";
			break;
		default:
			break;
	}

}

function hiddenAll(){
	document.getElementById("menu_01").style.display="none";
	document.getElementById("menu_02").style.display="none";
	document.getElementById("menu_03").style.display="none";
	document.getElementById("menu_04").style.display="none";
	document.getElementById("menu_05").style.display="none";
}