text: ;wax = wax || {};
  
  // Attribution
  // -----------
  wax.attribution = function() {
      var container,
          a = {};
  
      function urlX(url) {
          // Data URIs are subject to a bug in Firefox
          // https://bugzilla.mozilla.org/show_bug.cgi?id=255107
          // which let them be a vector. But WebKit does 'the right thing'
          // or at least 'something' about this situation, so we'll tolerate
          // them.
          if (/^(https?:\/\/|data:image)/.test(url)) {
              return url;
          }
      }
  
      function idX(id) {
          return id;
      }
  
      a.set = function(content) {
          if (typeof content === 'undefined') return;
          container.innerHTML = html_sanitize(content, urlX, idX);
          return this;
      };
  
      a.element = function() {
          return container;
      };
  
      a.init = function() {
          container = document.createElement('div');
          container.className = 'wax-attribution';
          return this;
      };
  
      return a.init();
  };
  