events: {
     'click .service-button': 'next',
     'click #start': 'start'
},

events: {
        'click .service-button': 'next',
        'touchend .service-button': 'touch_filter',
        'click #start': 'start'
    },

touch_filter: function(e){
    e.preventDefault();
    $(e.target).trigger('click');
},