$(function(){
	$('#typeSize a').click(function(event){
		var theText = $('p, li, article');
		var triggerEle = this; // save reference of clicked element 
		theText.each( function(idx, ele){ // iterate over each found element
			var $e = $(ele); // current element wrapped with jQuery 
			var currentSize = $e.css('fontSize');
			var newSize = parseFloat(currentSize, 10);
			var endString = currentSize.slice(-2);
			if(triggerEle.id == 'largerType') {
				newSize *= 1.2;
			}
			else if (triggerEle.id == 'smallerType'){
				newSize /=1.2;
			}
			$e.css('fontSize', newSize + endString);
			event.preventDefault(); 
		});
	});
});