'summary' Example
<html> <body> <script language="JavaScript"> function function1() { document.all.myTable.summary = "Table Contains 4 cells"; } </script> <table id="myTable" width="542" border="3" cellspacing="5" cellpadding="5"> <tr> <th>Header 1 content</th> <th>Header 2 content</th> </tr> <tr> <td>Cell 1 content</td> <td>Cell 2 content</td> </tr> </table> <button onclick="function1();">Add Summary</button> <button onclick="alert(document.all.myTable.summary);">View Summary</button> </body> </html>