gistfile1.js

var categoryClassTransformer = function(value) {
    return (value) ? value.toLowerCase().replace(/ /g, '') : '';
};

var triedClassTransformer = function(value) {
    return (value == true) ? 'tried' : 'todo';
};

var Meal = Backbone.Model.extend({}),
    MealLogView = Backbone.View.extend({
        tagName: 'form',
        className: 'meal-log',
        template: _.template($('#meal-log').html()),
        bindings: {
            'class': ['category', categoryClassTransformer],
            'class': ['tried', triedClassTransformer],
            'text h1.name': 'name',
            'value input[name="name"]': 'name',
            'value textarea[name="notes"]': 'notes',
            'checked input[name="tried"]': 'tried'
        },
        events: {
            'submit': 'save'   
        },

        save: function(event) {
            alert("Save: " + JSON.stringify(this.model.toJSON()));
            return false;
        },
        render: function() {
            this.$el.html(this.template());
            return this.bindModel();
        }
    });