$(function(){
	var currentstyle = readCookie('fontStyle');
	if (currentstyle){
		switchFont(currentstyle);
		};
		
		$('.sizeL a').click(function(){
			switchFont('fontL');
			selectedFont();
			return false;
		});
		
		$('.sizeM a').click(function(){
			switchFont('fontM');
			selectedFont();
			return false;
		});
		
		$('.sizeS a').click(function(){
			switchFont('fontS');
			selectedFont();
			return false;
	});
	selectedFont();
});

function switchFont(className){
	$('#wrapper').removeAttr('class').addClass(className);
	createCookie('fontStyle', className, 365);
}

function selectedFont(){
	var nowFontSize = $('#wrapper').attr('class');
	
	switch (nowFontSize) {
		case 'fontL':
			$('.selectedFont').removeClass('selectedFont');
			$('.sizeL a').addClass('selectedFont');
			break;
			
		case 'fontM':
			$('.selectedFont').removeClass('selectedFont');
			$('.sizeM a').addClass('selectedFont');
			break;
			
		case 'fontS':
			$('.selectedFont').removeClass('selectedFont');
			$('.sizeS a').addClass('selectedFont');
			break;
		
		default:
			$('.selectedFont').removeClass('selectedFont');
			$('.sizeM a').addClass('selectedFont');
			break;
	}
}

// cookie script http://www.quirksmode.org/js/cookies.html
function createCookie(name,value,days){
   if (days){
   var date = new Date();
   date.setTime(date.getTime()+(days*24*60*60*1000));
   var expires = "; expires="+date.toGMTString();
   }
   else var expires = "";
   document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name){
   var nameEQ = name + "=";
   var ca = document.cookie.split(';');
   for(var i=0;i < ca.length;i++)
   {
   var c = ca[i];
   while (c.charAt(0)==' ') c = c.substring(1,c.length);
   if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
   }
   return null;
}