var RandomFileInDirectory = app.browseForDoc({});
var OpenRandomDocument = app.openDoc(RandomFileInDirectory);
var WorkingDirectory = OpenRandomDocument.path.replace(/(.*\/)(.*)/g,"$1");
OpenRandomDocument.closeDoc(true);
var FilenamesStream = util.readFileIntoStream(WorkingDirectory + "filenames.txt");
var FilenamesString = util.stringFromStream(FilenamesStream);
var Filenames = FilenamesString.split("\n");
Filenames.pop();
for (var ThisFilename = 0; ThisFilename < Filenames.length; ThisFilename++)
	{
	if (! /\s/.test(Filenames[ThisFilename]))
		{
		continue;
		}
	var SecondDocumentFilename = Filenames[ThisFilename].replace(/([^ ]+)(.*)(\.pdf)/gi,"$1$3");
	var FirstDocument = app.openDoc(WorkingDirectory + Filenames[ThisFilename]);
	try
		{
		FirstDocument.insertPages ({nPage: FirstDocument.numPages - 1, cPath: WorkingDirectory + SecondDocumentFilename});
		FirstDocument.saveAs(WorkingDirectory + "A-" + Filenames[ThisFilename]);
		}
	catch(e)
		{
		}
	FirstDocument.closeDoc(true);
	}
