function showSubmenu(mid){
	hideSubmenus();
	document.getElementById("submenu"+mid).style.display = "block";
}

function hideSubmenus(){
	var menuCount = 9;
	for(i=1; i<=menuCount; i++){
		document.getElementById("submenu"+i).style.display = "none";
	}
}

function showTab(tid){
	document.getElementById("folder1").style.display = "none";
	document.getElementById("folder2").style.display = "none";
	document.getElementById("folder3").style.display = "none";
	document.getElementById("folder"+tid).style.display = "block";
}