// JavaScript Document

function showLayer(layerName)
{
	elem = document.getElementById('nav'+layerName);
	elem.style.display = 'block';
	
	if(document.getElementById('navLogo'))
	{
		document.getElementById('navLogo').style.display = 'none';	
	}
}

function showNavigationLogo()
{
	document.getElementById('navLogo').style.display = 'block';	
}

function hideLayer(layerName)
{
	elem = document.getElementById('nav'+layerName);
	elem.style.display = 'none';
}

function showImage(newImage, imageHolder)
{
	imageHolder.src='images/'+newImage+'.jpg';	
}