window.addEvent("domready", function(){	
	$$(".amas").addEvent("click", function(evento){		
		(new Event(evento)).stop();
		changeFontSize(2);
	});
	
	$$(".amenos").addEvent("click", function(evento){		
		(new Event(evento)).stop();
		changeFontSize(-2);
	});
	
	$$(".anormal").addEvent("click", function(evento){
		(new Event(evento)).stop();
		revertStyles();
	});
});