Place random image in Messages with Applescript - TextExpander

Question

I've been using Apple computers since '84 but I've never used Appplescript and was hoping for some help.
I'd like to be able to place a random image in Messages with an Applescript through TextExpander. When I type my snippet into Messages  the Finder will open a random image from a folder using something like this:
tell application "Finder"
set randomImage to some file of folder "Mac HD:Users:me:photos:chat pics"
get randomImage
open randomImage
end tell
If I replace "Finder" with "Messages" it doesn't work. Do I need to combine 2 Applescripts to make this happen?
TIA

Answer 1

I tried using the following code, but it�din�t work.
<%@ page import="java.io.*" %>
<%
// File (or directory) to be moved
File file = new File("banner2.bmp");
// Destination directory
File dir = new File("banner");
// Move file to new directory
boolean success = file.renameTo(new File(dir, file.getName()));
if (!success) {
System.out.println("File was not successfully moved");
  // File was not successfully moved
else{
System.out.println("File was successfully moved");
%>Andreas