$(document).ready(function(){
        $('.middle').click(function(){
				$('link[title=styleswitcher]').attr({ href: '/css/lettersize/middle.css' });
        });
});

$(document).ready(function(){
        $('.large').click(function(){
				$('link[title=styleswitcher]').attr({ href: '/css/lettersize/large.css' });
        });
});