var scale ={
	header:14,
	content:10,
	header_current:14,
	content_current:10,
	increment: function(){
		scale.header_current+=2;
		scale.content_current+=2;
	},
	decrement: function(){
		scale.header_current-=2;
		scale.content_current-=2;
	},
	reset: function(){
		scale.header_current = scale.header;
		scale.content_current = scale.content;
	},
	setSize: function(){
		var header = scale.header_current;
		var content = scale.content_current;
		$("#main-nav span").each(function(index, item){item.style.fontSize=header+"px"});
		$("#content-wrapper")[0].style.fontSize = content+"px";
	},
	bigger: function(){
		scale.increment();
		scale.setSize();
	},
	smaller:function(){
        scale.decrement();
		scale.setSize();
	},
	normal: function(){
        scale.reset();
		scale.setSize();
	}
}

$(document).ready(function(){
$("a.decrease").click(scale.smaller);
$("a.increase").click(scale.bigger);
$("a.reset").click(scale.normal);
});