Table summary text

Table summary text
	Chapter 28. Tables

For HTML output, you can add a table summary to each table. A table summary is output as a summary attribute on the HTML TABLE element. You have two options for providing a table summary. If you don't use either option, then the table's title (if it has one) will be used as the summary.

If your DocBook table element has a textobject element that contains a phrase element, then that text will be used in the summary. The DTD permits table to have a textobject element between the title and the tgroup elements.
```
<table>
<title>Mouse buttons</title>
<textobject>
  <phrase>Summarizes the click sequences for mouse buttons</phrase>
</textobject>
<tgroup>
...
```

You can add a processing instruction for a table summary. It must appear inside the tgroup element to work.

<table>
<title>Mouse buttons</title>
<tgroup>
<?dbhtml table-summary="Summarizes the sequences for mouse buttons" ?>
<row>
...