gistfile1.txt

      var navItems = _.chain(Pressly.Manifest.sections).select(function(section) {
        // Select all the sections which are not shallow and..
        return !section.shallow && section.assets.length > 0;
      }).collect(function(section) {
        // Collect assets from these section which includes..
        return _(section.assets).detect(function(asset) {
          // The first article asset it finds that ..
          return asset.type === "article" && asset.children && _(asset.children).any(function(child) {
            // Has a a child asset with type of image
            return child.type === "image";
          });
        }) || _(section.assets).first(); // No assets with images were found so use the first asset and use a place holder image
      }).value();