$(document).ready(
	function()
	{
		// changer links when clicked
		$('a.textsizeup,a.textsizedown').click(
			function()
			{
				//set the div with class mainText as a var called $mainText 
				var $mainText = $('.texte');
				// set the current font size of .mainText as a var called currentSize
				var currentSize = $mainText.css('font-size');
				// parse the number value out of the font size value, set as a var called 'num'
				var num = parseFloat(currentSize, 10);
				// make sure current size is 2 digit number, save as var called 'unit'
				var unit = currentSize.slice(-2);
				// javascript lets us choose which link was clicked, by ID
				if ($(this).is('.textsizeup'))
				{
					num = num * 1.4;
				}
				else if ($(this).is('.textsizedown'))
				{
					num = num / 1.4;
				}
				// jQuery lets us set the font Size value of the mainText div
				$mainText.css('font-size', num + unit);
			   return false;
			}
		);
	
	}
);