Getting Variable from JScript in Batch File

Hi Guys,

I am trying to write some batch files and have got a bit stuck.  The batch program calles a JScript prgram to get the name of a folder created three days ago:

// Create Date object
objToday = new Date();

// Get today's year, month and day
year  = objToday.getFullYear();
month = objToday.getMonth() + 1;
if ( month < 10 )
      {
      month = "0" + month;
      };
day   = objToday.getDate();
if ( day < 10 )
      {
      day = "0" + day;
      };

// Format output for today
strToday = "Today:      " + year + month + day + "  (" + day;
strToday = strToday + "/" + month + "/" + year + ")";

// Get current date in milliseconds since January 1, 1970
today = objToday.valueOf();

// Subtract 3 days
threeDay = 1000 * 24 * 60 * 60 * 3;
yesterday = today - threeDay;
objToday.setTime(yesterday);

// Get threeDay's year, month and day
year  = objToday.getFullYear();
month = objToday.getMonth() + 1;
if ( month < 10 )
      {
      month = "0" + month;
      };
day   = objToday.getDate();
if ( day < 10 )
      {
      day = "0" + day;
      };

// Format output
strFolder = "" + year + month + day;
//display output
//WScript.echo( strFolder );
WScript.quit( strFolder );

The problem is I can't get the variable strFolder to be returned to the batch script.  I have tried:

OldFolder.js %*

echo %strFolder%

and

for /f "tokens=*" %%i in ('OldFolder.js') do set var=%%i

echo %var%

But neither have worked.  What am I doing wrong please?

Cheers
Tom