function [dirs]=get_dirs_from_url(url_base);
% GET_DIRS_FROM_URL Get subdirectories from a URL directory
s=urlread(url_base);
f1=strfind(s,'/DATAFILES/');
f2=strfind(s,'/">');
for i=1:length(f1);
    dirs{i}=s(f1(i)+11:f2(i+1)-1);
end