function increaseFontSize() {
	document.getElementById('mainNav').style.fontSize = '77%';
	var elementId = 'inner-wrapper';
	var elm = document.getElementById(elementId);
	elm.className = 'fontLRG';
}

function decreaseFontSize() {
	document.getElementById('mainNav').style.fontSize = '93%';
	document.getElementById('mainNav').style.fontSize = '93%';
	var elementId = 'inner-wrapper';
	var elm = document.getElementById(elementId);
	elm.className = 'fontSML';
}
	
function resetFontSize() {
	document.getElementById('mainNav').style.fontSize = '100%';
	var elementId = 'inner-wrapper';
	var elm = document.getElementById(elementId);
	elm.className = '';
}