$('document').ready(function(){  
                $('#accessibility').ability({ 
                    textsizer: true, 
                    textsizeclasses: ['m', 'l', 'xl', 'xxl'], 
                    switcher: true, 
                    switcherstyles: ['default.css', 'high-contrast.css'], 
                    styledir: "fileadmin/templates/", 
                    savecookie: true, 
                    defaultcss: 'default.css' 
                }); 
            });