Inter-script communication and script cloning

Question

How does a calling script pass information about itself to a script it calls via a tell statement? I'd want to pass the name and path of the calling script's application file, among other things. The called script would then talk back to the calling script, and so forth. Must this be done explicitly by, say, having the called script invoke a script object in the calling script, or can information about the calling script be passed by the call itself?
Also, how would one get a script application to clone a copy of itself? Would having the Finder just make a copy of the application file from within the script itself work?
Thanks for any insights.

Answer 1

I saved the following as an application and ran it as an application (outside the Script Editor!) and it 'cloned' itself as expected.
click here to open this script in your editor<pre style="font-family: 'Monaco', 'Courier New', Courier, monospace; overflow:auto; color: #222; background: #DDD; padding: 0.2em; font-size: 10px; width:400px">tell application "Finder" to duplicate (path to me)</pre>Another interesting feature of script objects, however, is that you don't need to duplicate scripts with the Finder to get multiple script objects. The preferred method is to load the same script into multiple variables of the calling script, and then assign different properties to each new instance of the called script.
You can even do this with scripts that you define within the calling script itself, or with particular handlers or scripts defined in other files. I've rarely needed to go that far in my own scripting adventures, but I've done it before. More frequently I just use the much simpler run script command to pass parameters and return results from a called script file. See this thread for info on that:
http://discussions.apple.com/message.jspa?messageID=1163768