<%
if (is_home() || is_category() || is_archive() || is_tag() || page.layout == 'list') {
  if (page.sidebar == undefined) {
    if (theme.layout.on_list.sidebar.length == 0) {
      page.sidebar = [];
    } else {
      page.sidebar = theme.layout.on_list.sidebar;
    }
  }

} else {
  if (page.sidebar == undefined) {
    if (theme.layout.on_page.sidebar.length == 0) {
      page.sidebar = [];
    } else {
      page.sidebar = theme.layout.on_page.sidebar;
    }
  }
}
%>