+%
+%my $error = '';
+%my $blocknum = $cgi->param('blocknum');
+%my $routernum = $cgi->param('routernum');
+%
+%my $addr_block = qsearchs('addr_block', { blocknum => $blocknum });
+%my $router = qsearchs('router', { routernum => $routernum });
+%
+%if($addr_block) {
+% if ($router) {
+% $error = $addr_block->allocate($router);
+% } else {
+% $error = "Cannot find router with routernum $routernum";
+% }
+%} else {
+% $error = "Cannot find block with 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");
+%}
+%