function get_1980(){
   var loc=document.seminar1980.pulldown_1980.options[document.seminar1980.pulldown_1980.selectedIndex].text;
if (loc == "1986") { location="http://www.pmel.noaa.gov/foci/seminars/1980/seminar_86.pdf"; }
   else if (loc == "1987") { location="http://www.pmel.noaa.gov/foci/seminars/1980/seminar_87.pdf"; }
   else if (loc == "1988") { location="http://www.pmel.noaa.gov/foci/seminars/1980/seminar_88.pdf"; }
   else if (loc == "1989") { location="http://www.pmel.noaa.gov/foci/seminars/1980/seminar_89.pdf"; }
}
function get_1990(){
   var loc=document.seminar1990.pulldown_1990.options[document.seminar1990.pulldown_1990.selectedIndex].text;
if (loc == "1990") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_90.pdf"; }
   else if (loc == "Fall 1991") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall91.pdf"; }
   else if (loc == "Winter 1991") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter91.pdf"; }
   else if (loc == "Winter 1992") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter92.pdf"; }
   else if (loc == "Fall 1993") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall93.pdf"; }
   else if (loc == "Winter 1993") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter93.pdf"; }
   else if (loc == "Fall 1994") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall94.pdf"; }
   else if (loc == "Winter 1994") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter94.pdf"; }
   else if (loc == "Fall 1995") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall95.pdf"; }
   else if (loc == "Winter 1995") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter95.pdf"; }
   else if (loc == "Fall 1996") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall96.pdf"; }
   else if (loc == "Winter 1996") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter96.pdf"; }
   else if (loc == "Fall 1997") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall97.html"; }
   else if (loc == "Winter 1997") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter97.html"; }
   else if (loc == "Fall 1998") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall98.html"; }
   else if (loc == "Winter 1998") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter98.html"; }
   else if (loc == "Fall 1999") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_fall99.html"; }
   else if (loc == "Winter 1999") { location="http://www.pmel.noaa.gov/foci/seminars/1990/seminar_winter99.html"; }
}