oldOnload = function() {};
if (typeof(window.onload) == 'function')
	oldOnload = window.onload();

window.onload = function() {
	oldOnload();
	funActiveNav();
}

function funActiveNav()
{
	var navRef = document.getElementById('nav');
	var navA = navRef.getElementsByTagName('a');
	
	for(i=0;i<navA.length;i++)
	{
		if (navA[i].parentNode.parentNode.id == 'nav')
		{
			refParent = navA[i];
			if (document.location == navA[i].href)
				navA[i].id = "nav-active";
		}
		else
		{
			if (document.location == navA[i].href)
				refParent.id = "nav-active";
		}
		
	}
}