window.addEvent('load', function() {
	$('chooseSize').getChildren().forEach(function(item,index) {
		item.addEvent('click',function(event) {
			if (!window.ie) {
				event = new Event(event);
				event.preventDefault();
			}else {
			    event.cancelBubble = true;
			    event.returnValue = false;
			}
			
			if (document.body.style.fontSize == "") {  
				document.body.style.fontSize = "1.0em";  
			}  
			
			var multiplier = this.get('rel').toFloat();
			
			document.body.style.fontSize = parseFloat(document.body.style.fontSize) + (multiplier * 0.2) + "em";  
		}.bind(item));
	});
});