-<%
-my $error = '';
-my $blocknum = $cgi->param('blocknum');
-my $addr_block = qsearchs('addr_block', { blocknum => $blocknum });
+%
+%my $error = '';
+%my $blocknum = $cgi->param('blocknum');
+%my $addr_block = qsearchs('addr_block', { blocknum => $blocknum });
+%
+%if ( $addr_block) {
+% $error = $addr_block->split_block;
+%} else {
+% $error = "Unknown blocknum: $blocknum";
+%}
+%
+%
+%if ( $error ) {
+% $cgi->param('error', $error);
+% print $cgi->redirect(popurl(4). "browse/addr_block.cgi?". $cgi->query_string );
+%} else {
+% print $cgi->redirect(popurl(4). "browse/addr_block.cgi");
+%}
+%