Trying to script some actions in Photoshop

Question

Hi, first time poster, so bear with me a bit.
I haven't used AppleScript since I was a kid in the days of Classic, when basically everything could be recorded, and have just started trying to play with it in OSX today. Actually typing out what you want things to do seems to be much harder, at least for me, who has zero programming experience.
For reference's sake, I'm running 10.6.8, and using Photoshop CS5.
What I'm trying to do here, essentially, is quicken the process of resizing and saving some .psds. Specifically, I need them as at a height of 1300 pixels, resolution of 72 dpi; and I need to change their color modes to Indexed Color. I also need them saved as non-interlaced PNGs, using the same filenames (other than extension) that they currently have, in a particular folder on my harddrive. While I could do all this easily enough using batch conversion, I'm trying to use AppleScript because there are more detailed edits that I need to do to each file in Photoshop, anyway. I figure if I can get a script that'll resize/remode my files the way I want, and one that'll save them how and where I want, I can just skip the batch conversion altogether and save them in the appropriate fashion immediately after I finish my manual edits.
So, using the example in CS5's AppleScript Reference guide, I tried making a script to save a file as a PNG. This is the script:
tell application "Adobe Photoshop CS5"
make new document
set myFile to "blahblah location"
set myOptions to {class:PNG save options}
save document in file myFile as PNG with options ¬
myOptions appending no extension without copying
end tell
For reference, this is the example script in the AppleScript Ref document. As you can see, they're identical except for the location/filename.
tell application "Adobe Photoshop CS5"
make new document
set myFile to "Data:docsamples:testfiles:PngTest.png"
set myOptions to {class:PNG save options}
save current document in file myFile as PNG with options ¬
myOptions appending no extension without copying
end tell
When I try to run it this way, I get a syntax error: "Expected 'given', 'with', 'without', other parameter name, etc. but found identifier." When I click "Okay," it highlights the word "options" in "PNG save options," so I assume that's the problem. I tried getting rid of the "save options" bit, but then I get another syntax error: "Expected end of line, etc. but found identifier," highlighting "myOptions" in the second to last line. If I try removing the stuff talking about options entirely, it gives me a general AppleScript error: "The variable PNG is not defined."
So it's quite clear that I have no idea what I'm doing, but I do find it strange that the example script with virtually no modifications isn't working.
If anybody can explain how to write a script for the other functions I'm trying to accomplish, I'd appreciate that, as well, as I do this sort of work on a fairly regular basis.
Thanks for reading!

Answer 1

Though I have not done it, I think you can if you add a checkbox bean (not the tableSelection) and specify an event for the checkbox bean.
Regards,
LC