I have an Applescript that I need to convert to a Javascript.
I have read some of the documentation for Javascript but I am finding it tough.
Can anyone show me the equivalent Javascript for this Applescript
set the thefolder to alias "macHD:Users:Smith:Desktop:PDFs:"
tell application "Adobe InDesign CS3"
    tell document 1
        set the ADSTACK to every text frame whose label starts with "Product"
        if (count of ADSTACK) = 1 then
            set the AdLabel to label of item 1 of ADSTACK
            set AdNumber to word 3 of AdLabel & ".pdf"
            tell item 1 of ADSTACK
                try
                    set thisAd to thefolder & AdNumber as text as alias
                    place thisAd
                on error
                    display dialog "Ad not found" buttons {"Cancel"} with icon 1
                end try
            end tell
        else
            repeat with i from 1 to count of ADSTACK
                set the AdLabel to label of item i of ADSTACK
                set AdNumber to word 3 of AdLabel & ".pdf"
                tell item i of ADSTACK
                    try
                        set thisAd to thefolder & AdNumber as text as alias
                         place thisAd
                    on error
                        display dialog AdNumber & " not found" buttons {"Cancel", "OK"} default button 2 with icon 1
                    end try
                end tell
            end repeat
        end if
    end tell
end tell