code: function(html_container, html_element) {
  			var pos = html_container.search(/(<\/[^>]+>\s*)$/);
  			return html_container.substring(0, pos) + html_element + html_container.substring(pos);
  		}
docs: Appends an element as a child (with raw HTML).
  
  @param {string} html_container
  @param {string} html_element
  @return {string}