#leftcolumn {
  display: none;
  width: 0;
}

#maincolumn, #maincolumn_full {
  margin-left: 0;
  width: 100%;
  padding-left: 0;
}

div#logo {
  margin-left: 25px;
}

div#tabarea, #pathway, #search, #power_by, #syndicate, #copyright_sitemap {
  display: none;
}