[JS CS3] Making the #includepath work

Question

Hello,
I have a script that will be used on both PCs and Macs. As the script refers to many other scripts I need a path to them. However there is something wrong with the following line:
#includepath "myPath+'/FormatResources/'"
I get an error message that says the firstScript.jsxinc cannot be found. Well, it and about many others that follow are there but the path to them is failing. I cannot see what is wrong, nor can find where in the ESTK data browser the #includepath statement might be.
Any help would be appreciated.
Tom
if(File.fs == "Macintosh"){   
     var myPath = "~/Library/Preferences/Adobe InDesign/Version 5.0/Scripts/Scripts Panel" ;//Macs
     }//end if
else {
     var myPath = "~/Application Data/Adobe/InDesign/Version 5.0/Scripts/Scripts Panel";//PCs
     }//end else
#includepath "myPath+'/FormatResources/'"
#include "_firstScript.jsxinc"

Answer 1

I'm guessing, but don't worry -- it's an educated guess!
Lines starting with '#' are not really part of Javascript-the-language, so you cannot use Javascript command syntax in them. Concatenating two strings this way is Javascript syntax, as is looking up a string value from a variable.
Since this line doesn't get parsed and evaluated, everything inside the "quotes" is treated as being the path name, and the path name
myPath+'/FormatResources/'
is not found on your system.
[Edit] I forgot to add a solution. Since the script will (presumably) be run from the Scripts panel, you can use this variable
app.activeScript.fullName
to get the effective path of the script that's running. You can tack on "FormatResources" to get to your data.