I'm currently working on a web site in which I need to merge some data cells within a bunch of tables.
The site is mostly product-oriented. It contains more than 100 product pages, each containing a data table showing the variations of that product family. There are certain data cells that will be identical to the same cell in the previous row. We would like to merge these cells visually, but we also want to retain the original HTML. (We will be using these tables in a related web application—served via Drupal web services.)
Here is a sample of the product data: