+if ( $cgi->param('error') ) {
+ $taxnum = $cgi->param('taxnum');
+ $delim = $cgi->param('delim');
+ $expansion = $cgi->param('expansion');
+} else {
+ my ($query) = $cgi->keywords;
+ $query =~ /^(\d+)$/
+ or die "Illegal taxnum!";
+ $taxnum = $1;
+ $delim = 'n';
+ $expansion = '';
+}