// JavaScript Document
function hideMenu(){
	
	var totalMenus = 4;
	
	for(i=1; i<=totalMenus; i++){
	
		document.getElementById('menu'+i).style.display = 'none';
		
	}

}

function showMenu(menuNumber){

	hideMenu();
	document.getElementById(menuNumber).style.display = 'block';
	
}