function changeSize(size) {
	if ( size == "small" ) {
		size = '1em';
		newlineheight = '1.2em';
	}
	else if ( size == "medium" ) {
		size = '1.2em';
		newlineheight = '1.3em';
	}
	else if ( size == "large" ) {
		size = '1.4em';
		newlineheight = '1.4em';
	}

	//document.body.style.fontSize = size;
	if ( document.getElementById('content') != null ) {
		document.getElementById('content').style.fontSize = size;
		document.getElementById('content').style.lineHeight = newlineheight;
	}
}