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";
}

function showpad(){
	document.getElementById('pad').style.display = "block";
	document.getElementById('showpadlink').style.display = "none";
	document.getElementById('hidepadlink').style.display = "block";
}
function hidepad(){
	document.getElementById('pad').style.display = "none";
	document.getElementById('hidepadlink').style.display = "none";
	document.getElementById('showpadlink').style.display = "block";
}