cat_txt[100-start_pic]="Andy Scarratt (president) presenting Joan Wright a 98th birthday card"
cat_txt[102-start_pic]="Andy Scarratt (president) presenting Joan Wright a 98th birthday card"
cat_txt[104-start_pic]="Chris Congreve lecturing"
cat_txt[112-start_pic]="The audience at Chris Congreve's lecture"
cat_txt[114-start_pic]="The audience at Chris Congreve's lecture"
cat_txt[122-start_pic]="Jon Gadd helping at Chris Congreve's lecture"
cat_txt[124-start_pic]="Jonathan Monks helping at Chris Congreve's lecture"
cat_txt[128-start_pic]="Oliver Williams and Jonathan Monks helping at Chris Congreve's lecture"
cat_txt[136-start_pic]="Steve Bowring helping at Chris Congreve's lecture".