function showAbout(){
	document.getElementById('about').style.display = "block";
	document.getElementById('showaboutlink').style.display = "none";
	document.getElementById('hideaboutlink').style.display = "block";
}
function hideAbout(){
	document.getElementById('about').style.display = "none";
	document.getElementById('hideaboutlink').style.display = "none";
	document.getElementById('showaboutlink').style.display = "block";
}