[jQuery] Table sorter plugin not properly sorting Distance column (ie: 17 Miles)

[Yvan]

I'm using the tableshorter plugin on a table which lists multiple
locations, and that contains a "Distance" column which displays
distances in the format of "17 Miles" and "5 miles", etc.

I have the following javascript in my head section, which defines the
sort order of the 1 column that I want to have sortable (and that
specifies which columns I do not want to make sortable):

        <script type="text/javascript">
                $(document).ready(function() {
                        $("#locationsTable").tablesorter( {sortList:
[[1,0]],
                        headers: {
                        0: { sorter: false },
                        2: { sorter: false },
                        3: { sorter: false }
                                        }
                                }
                        );
                });
        </script>

I'm finding that I am not able to properly sort the distance column
when I include the word "Miles" in that table cell.  It's only when I
remove the word "Miles" from the table cell that the column sorts
properly.

How can I fix this?

Thanks,
- Yvan