// JavaScript Document
function swapNav(elm)	{
	var obj = document.getElementById(elm);
	obj.className = 'nav_item_over';
}

function swapNavBack(elm)	{
	var obj = document.getElementById(elm);
	obj.className = 'nav_item';
}

function setNav(elm)	{
	var obj = document.getElementById(elm);
	obj.className = 'nav_item_over';
}