--- trunk/jsFind.pm	2004/07/21 15:34:03	7
+++ trunk/jsFind.pm	2004/07/21 15:44:15	8
@@ -695,7 +695,7 @@
 
 Create jsFind xml files
 
- my $nr=$tree->to_dot('/path/to/index','0');
+ my $nr=$tree->to_jsfind('/path/to/index','0');
 
 Returns number of elements created
 
@@ -707,6 +707,9 @@
 
 	return 0 if $self->is_empty;
 
+	confess("path is undefined.") unless ($path);
+	confess("file is undefined. Did you call \$t->root->to_jsfind(..) instead of \$t->to_jsfind(..) ?") unless (defined($file));
+
 	my $nr_keys = 0;
 
 	my ($k, $d, $s) = @$self;