<%
if (page.cover == undefined && theme.cover) {
  if (is_home() && page.prev == 0) {
    page.cover = theme.cover.display.home;
  } else if (is_archive()) {
    page.cover = theme.cover.display.archive;
  } else {
    page.cover = theme.cover.display.others;
  }
}
if (site.data && site.data.layout) {
  theme.layout = site.data.layout;
}
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;
    }
  }
}
if (page.sidebar == false) {
  page.sidebar = [];
}
%>