# ($min, $max) = stratify_tags($strata, $tags);
# $stratum: the number of divisions you want
# $tags: the tags, as provided by get_approval_rows
-# $min: the minumum stratum value
+# $min: the minimum stratum value
# $max: the maximum stratum value. This may be the same as $min if there
# is only one weight. Beware of divide by zeros.
# This will add a field to the tag called "stratum" containing the calculated
approved - Negative, 0 or positive if tag is rejected, pending or approved.
date_approved - date of last action
approved_by - staffer performing the last action
- weight_total - total occurance of term in any biblio by any users
+ weight_total - total occurrence of term in any biblio by any users
tags_index - This table is for performance, because by far the most common operation will
be fetching tags for a list of search results. We will have a set of biblios, and we will