code: function(source, id, url) {
              module.debug('Generating embed html');
              var
                width = (settings.width == 'auto')
                  ? $module.width()
                  : settings.width,
                height = (settings.height == 'auto')
                  ? $module.height()
                  : settings.height,
                html
              ;
              if(source && id) {
                if(source == 'vimeo') {
                  html = ''
                    + '<iframe src="http://player.vimeo.com/video/' + id + '?=' + module.generate.url(source) + '"'
                    + ' width="' + width + '" height="' + height + '"'
                    + ' frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>'
                  ;
                }
                else if(source == 'youtube') {
                  html = ''
                    + '<iframe src="http://www.youtube.com/embed/' + id + '?=' + module.generate.url(source) + '"'
                    + ' width="' + width + '" height="' + height + '"'
                    + ' frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>'
                  ;
                }
              }
              else if(url) {
                html = ''
                  + '<iframe src="' + url + '"'
                  + ' width="' + width + '" height="' + height + '"'
                  + ' frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>'
                ;
              }
              else {
                module.error(error.noVideo);
              }
              return html;
            }
docs: generates iframe html