function font_shrink() {
	document.getElementById('small').className = 'selected';
	document.getElementById('big').className = '';
	
	var content = document.getElementById('content');
	var elements = content.getElementsByTagName('DIV');
	for (var i = 0; i < elements.length; i++) {
		var child = elements[i];
		if (child.className && child.className == 'content') {
			var text = child;
		}
		if (child.className && child.className.indexOf('small') != -1) {
			child.style.display = 'block';
		}
		if (child.className && child.className.indexOf('big') != -1) {
			child.style.display = 'none';
		}
	}
	
	text.style.fontSize = '11px';
}



function font_enlarge() {
	document.getElementById('small').className = '';
	document.getElementById('big').className = 'selected';
	
	var content = document.getElementById('content');
	var elements = content.getElementsByTagName('DIV');
	for (var i = 0; i < elements.length; i++) {
		var child = elements[i];
		if (child.className && child.className == 'content') {
			var text = child;
		}
		if (child.className && child.className.indexOf('small') != -1) {
			child.style.display = 'none';
		}
		if (child.className && child.className.indexOf('big') != -1) {
			child.style.display = 'block';
		}
	}
	
	text.style.fontSize = '13px';
}