a:link {color: #0000ff; text-decoration: none}
a:visited {color: #0000ff; text-decoration: none}
a:hover {color: #aa0000; text-decoration: underline}

a.button {
  font-family: arial, sans-serif; 
  font-weight: bold}

td.page_title {
  font-family: arial, sans-serif; 
  font-weight: bold;
  width:  33%; }

td.nav_button {
  text-align: center;
  width: 40px}

img.nav_button {
  border-style:  none;
  width:  30px;
  height: 30px;}

img.plain {
  border-style:  none;}

td.thumbnail {
  text-align: center;
  }

img.thumbnail {
  border-style:  none;}