//level 2/////////////////////////////////////////////////////////////////////////////////////////////////////
function there(text, level)
{
   document.writeln("<tr><td bgcolor=\"CFCFCF\">")
   if (level == 1) 
     document.writeln("<img src=\"http://toms.gsfc.nasa.gov/images/line.gif\">")
   if (level == 0) {
   document.writeln("<span class=sidelink><font size=-1>&nbsp;"+text+"</font></span><br>")
  } 
  else document.writeln("<span class=sidelink><font size=-1 color=black>"+text+"</font></span></A><br>")

   document.writeln("</td></tr>")
}

function notthere(url, text, level)
{
  document.writeln("<tr><td bgcolor=white>")
  if (level == 1) document.writeln("<img src=\"http://toms.gsfc.nasa.gov/images/line.gif\">")
  if (level == 0) {
  document.writeln("<a href=\""+url+"\"><span class=sidelink><font size=-1 color=black>&nbsp;"+text+"</font></span></A><br>")
  }
  else document.writeln("<a href=\""+url+"\"><span class=sidelink><font size=-1 color=black>"+text+"</font></span></A><br>")
  document.writeln("</td></tr>")
}

//level 1/////////////////////////////////////////////////////////////////////////////////////////////////////

function write(url, text, level)
{
 
  if (location.pathname == "http://toms.gsfc.nasa.gov/" + url)    there(text, level)
  else   notthere(url, text, level)
}

//level 0/////////////////////////////////////////////////////////////////////////////////////////////////////

// Here are tha linkz.

  document.writeln("<table width = 125 bgcolor=black cellpadding=1 cellspacing=0 border=0><tr><td bgcolor=black>")
  document.writeln("<table border=0 width = 124 cellspacing=0 cellpadding=0>")

  write("http://toms.gsfc.nasa.gov/index_v8.html", "<FONT color = \"0000ff\">Home</FONT>", 0);
  write("http://toms.gsfc.nasa.gov/fltmodel/spacecr.html", "<FONT color = \"0000ff\">Spacecraft</FONT>", 0);

  write("http://toms.gsfc.nasa.gov/eptoms/ep_v8.html", "<FONT color = \"ff0000\">Earth Probe<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/m3toms/m3toms.html", "<FONT color = \"ff0000\">Meteor 3<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/n7toms/nim7toms_v8.html", "<FONT color = \"ff0000\">Nimbus 7<\FONT>", 1);

  write("http://aura.gsfc.nasa.gov/instruments/omi/index.html", "<FONT color = \"ff0000\">OMI<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/index_v8.html", "<FONT color = \"0000ff\">Product</FONT>", 0);
  write("http://toms.gsfc.nasa.gov/aerosols/aerosols_v8.html", "<FONT color = \"ff0000\">Aerosols<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/ozone/ozone_v8.html", "<FONT color = \"ff0000\">Ozone<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/reflect/reflect_v8.html", "<FONT color = \"ff0000\">Reflectivity<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/ery_uv/euv_v8.html", "<FONT color = \"ff0000\">Erythemal UV<\FONT>", 1);
  write("http://toms.gsfc.nasa.gov/ery_uv/uv_irrad.html", "<FONT color = \"ff0000\">UV Irradiance<\FONT>", 1);
  write("http://hyperion.gsfc.nasa.gov/Data_services/cloud_slice", "<FONT color = \"ff0000\">Tropospheric Ozone<\FONT>", 1);
  write("http://so2.umbc.edu", "<FONT color = \"ff0000\">Volcano (SO<FONT size=\"-2\">2</FONT>)<\FONT>", 1);
write("http://toms.gsfc.nasa.gov/sci_team_members.html", "<FONT color = \"0000ff\">Science Team</FONT>", 0)
  write("http://toms.gsfc.nasa.gov/ftpimage_v8.html", "<FONT color = \"0000ff\">Direct Access</FONT>", 0)
  write("http://toms.gsfc.nasa.gov/news/news.html", "<FONT color = \"0000ff\">TOMS News", 0);
  write("http://toms.gsfc.nasa.gov/multi/multim.html", "<FONT color = \"0000ff\">Multimedia</FONT>", 0)
  write("http://toms.gsfc.nasa.gov/teacher/teacher.html", "<FONT color = \"0000ff\">Teachers</FONT>", 0)
  write("http://toms.gsfc.nasa.gov/links/links.html", "<FONT color = \"0000ff\">Links</FONT>", 0)

  document.writeln("</table></td></tr><tr><td height=10 bgcolor=white></td></tr></table>")