// JavaScript Document
     $(document).ready(function(){
	 // changer links when clicked
	 $("img.changer").click(function(){

	 //set the div with class mainText as a var called $mainText 
	 var $mainText = $('#main');

	 // set the current font size of .mainText as a var called currentSize
	 var currentSize = $mainText.css('font-size');

	 // parse the number value out of the font size value, set as a var called 'num'
	 var num = parseFloat(currentSize, 10);

	 // make sure current size is 2 digit number, save as var called 'unit'
	 var unit = currentSize.slice(-2);

	 // javascript lets us choose which link was clicked, by ID
	 if (num < 18){
		 num = num * 1.25;
	 } else {
		 num = 12;
	 };

	 // jQuery lets us set the font Size value of the mainText div
	 $mainText.css('font-size', num + unit);
	 return false;
	 
	 });

});