function showToggle(theID) {
	document.getElementById('overview').style.display = 'none';
	document.getElementById('features').style.display = 'none';
	document.getElementById('linkOverview').style.color = '';
	document.getElementById('linkFeatures').style.color = '';
	
	document.getElementById(theID).style.display = 'block';
	
	if (theID == 'overview')
	{
		document.getElementById('tirchNav').getElementsByTagName('a')[0].style.color="#FFFFFF";
	}
	else if (theID == 'features')
	{
		document.getElementById('tirchNav').getElementsByTagName('a')[1].style.color="#FFFFFF";
	}
	
}