Web-Harvest determine data type by table column header

[lexsus]

I am using Web-Harvest to do some web page "scraping". I have a table of values that I need to organize. The table is very simple. However, I need to use the table's column headings to determine the data types for each column. The table looks something like this....\[code\]<table> <tr class="header"> <td>Name</td> <td>Age</td> <td>Gender</td> </tr> <tr> <td>Bill</td> <td>25</td> <td>M</td> </tr> <tr> <td>Emily</td> <td>31</td> <td>F</td> </tr></table>\[/code\]I'm using XQuery, as shown in the Web-Harvest examples, and I know how to get the values by index and also using attributes (class, id, etc.) but in this case, I'm not sure how to determine that column 1 is name, column 2 is age, etc... I want to output XML in this form...\[code\]<person> <name>Bill</name> <age>25</age> <gender>M</gender></person><person> <name>Emily</name> <age>31</age> <gender>F</gender></person>\[/code\]I saw this code fragment from another post but I am not exactly sure how it works.\[code\]//tr[td[.="Jim"]]/td[count(ancestor::table/thead/tr/th[.="Credit"]/preceding-sibling::*)+1]\[/code\]It looks like for each row the ancestor (parent?) is referenced to find the corresponding column heading. Other than that, I'm lost. Any additional information would be very helpful.Thanks in advance.