How to capture images contained in text selections and apply object styles to the images?

I have selected some text, tables, and images, and I want to apply object styles(exapmle name:"AA") to the images.
How do I capture these images?
Sometimes they are imported from Word without links. Other times, they may be linked.

This is the original code for capturing the table:

       if (app.selection != null) {
            for (var f = 0; f < app.selection.length; f++) {
                var obj = app.selection[f];
                var t = obj.texts[0].tables;
. . . 

}