var openNav = "";

function openCloseNav(word){
	//close all the navs
	document.getElementById('menuSub').style.display='none';
	document.getElementById('wineSub').style.display='none';
	
	if(word == "menu"){
		if(openNav != "menu"){
			document.getElementById('menuSub').style.display='block';
			openNav = "menu";
		}else{
			openNav = "";
		}
	}else if(word == "wine"){
		if(openNav != "wine"){
			document.getElementById('wineSub').style.display='block';
			openNav = "wine";
		}else{
			openNav = "";
		}
	}
}