Adobe Illustrator script to convert files to AI

IllustratorSaveAsAI.jsx

/**********************************************************

ADOBE SYSTEMS INCORPORATED 
Copyright 2005-2010 Adobe Systems Incorporated 
All Rights Reserved 

NOTICE:  Adobe permits you to use, modify, and 
distribute this file in accordance with the terms
of the Adobe license agreement accompanying it.  
If you have received this file from a source 
other than Adobe, then your use, modification,
or distribution of it requires the prior 
written permission of Adobe. 

*********************************************************/

/**********************************************************
 
Save as AI.jsx

DESCRIPTION

This sample gets files specified by the user from the 
selected folder and batch processes them and saves them 
as AIs in the user desired destination with the same 
file name.

Based on Adobe's "Save as PDFs" sample script, intended for Illustrator CS6
 
**********************************************************/

// Main Code [Execution of script begins here]

// uncomment to suppress Illustrator warning dialogs
// app.userInteractionLevel = UserInteractionLevel.DONTDISPLAYALERTS;

var destFolder, sourceFolder, files, fileType, sourceDoc, targetFile, IllustratorSaveOptions;

// Select the source folder.
sourceFolder = Folder.selectDialog( 'Select the folder with Illustrator files you want to convert to AI', '~' );

// If a valid folder is selected
if ( sourceFolder != null )
{
  files = new Array();
	fileType = prompt( 'Select type of Illustrator files to you want to process. Eg: *.ai', ' ' );
	
	// Get all files matching the pattern
	files = sourceFolder.getFiles( fileType );
	
	if ( files.length > 0 )
	{
		// Get the destination to save the files
		destFolder = Folder.selectDialog( 'Select the folder where you want to save the converted AI files.', '~' );
		for ( i = 0; i < files.length; i++ )
		{
			sourceDoc = app.open(files[i]); // returns the document object
									
			// Call function getNewName to get the name and file to save the AI
			targetFile = getNewName();
			
			// Save as AI
			sourceDoc.saveAs(targetFile, IllustratorSaveOptions );

			sourceDoc.close();
		}
		alert( 'Files are saved as AI in ' + destFolder );
	}
	else
	{
		alert( 'No matching files found' );
	}
}


/*********************************************************

getNewName: Function to get the new file name. The primary
name is the same as the source file.

**********************************************************/

function getNewName()
{
	var ext, docName, newName, saveInFile, docName;
	docName = sourceDoc.name;
	ext = '.ai'; // new extension for AI file
	newName = "";
		
	for ( var i = 0 ; docName[i] != "." ; i++ )
	{
		newName += docName[i];
	}
	newName += ext; // full AI name of the file
	
	// Create a file object to save the AI
	saveInFile = new File( destFolder + '/' + newName );
	

	return saveInFile;
}