<% Root.sys_url %>
macro rendering siteurl

Sourcecode in Root/sysmgr_macros.js:
1:   function sys_url_macro(param) {
2:      if (param.as == "editor")
3:         Html.input(this.createInputParam("sys_url", param));
4:      else
5:         res.write(this.sys_url);
6:      return;
7:   }