function navOver(parentLink){	
	theLink = document.getElementById(parentLink);
	theLink.style.backgroundColor = "#01247E";
}

function navOut(parentLink){
	theLink = document.getElementById(parentLink);
	theLink.style.backgroundColor  = "transparent";
}

function showHideSub(n){
	theSub = document.getElementById('sub'+ n);
	
	if(theSub.style.display == "none"){
		theSub.style.display = "block";
	} else {
		theSub.style.display = "none";
	}
}