Selecting the tables

This script will select all tables in the active document, one by one. That's not very useful -- or is it?

for (s=0; s<app.activeDocument.stories.length; s++)
{
 for (t=0; t<app.activeDocument.stories.tables.length; t++)
 {
  app.activeDocument.stories.tables.select();
 }
}

There doesn't appear to be any 'tables' collection that's document wide, but you can iterate through all tables in a document like this:

for (var f = 0; f < app.activeDocument.textFrames.length; f++){
     for (var t = 0; t < app.activeDocument.textFrames.tables.length; t++){
          var tempTable = app.activeDocument.textFrames.tables;
     }
}