how to batch process, merging of 3 different images? i have action for merging and total of 240 different images.

////////////////////////////////////

// open first image;

theFile = app.open(theFiles[0]);

var basename = theFile.name.match(/(.*)\.[^\.]+$/)[1];

// place other files;

for (var m = 1; m < theFiles.length; m++) {

placeScaleRotateFile (theFiles, 0, 0, 100, 100, 0, false);

// set to screen;

theFile.activeLayer.blendMode = BlendMode.SCREEN

};

// save as psd;

psdOpts = new PhotoshopSaveOptions();

psdOpts.embedColorProfile = true;

psdOpts.alphaChannels = true;

psdOpts.layers = true;

psdOpts.spotColors = true;

theFile.saveAs((new File(theFolder+'/'+basename+".psd")),psdOpts,false);

};

};

////////////////////////////////////

////// place //////

function placeScaleRotateFile (file, xOffset, yOffset, theXScale, theYScale, theAngle, linked) {

// =======================================================

var idPlc = charIDToTypeID( "Plc " );

    var desc5 = new ActionDescriptor();

    var idnull = charIDToTypeID( "null" );

    desc5.putPath( idnull, new File( file ) );

    var idFTcs = charIDToTypeID( "FTcs" );

    var idQCSt = charIDToTypeID( "QCSt" );

    var idQcsa = charIDToTypeID( "Qcsa" );

    desc5.putEnumerated( idFTcs, idQCSt, idQcsa );

    var idOfst = charIDToTypeID( "Ofst" );

        var desc6 = new ActionDescriptor();

        var idHrzn = charIDToTypeID( "Hrzn" );

        var idPxl = charIDToTypeID( "#Pxl" );

        desc6.putUnitDouble( idHrzn, idPxl, xOffset );

        var idVrtc = charIDToTypeID( "Vrtc" );

        var idPxl = charIDToTypeID( "#Pxl" );

        desc6.putUnitDouble( idVrtc, idPxl, yOffset );

    var idOfst = charIDToTypeID( "Ofst" );

    desc5.putObject( idOfst, idOfst, desc6 );

    var idWdth = charIDToTypeID( "Wdth" );

    var idPrc = charIDToTypeID( "#Prc" );

    desc5.putUnitDouble( idWdth, idPrc, theYScale );

    var idHght = charIDToTypeID( "Hght" );

    var idPrc = charIDToTypeID( "#Prc" );

    desc5.putUnitDouble( idHght, idPrc, theXScale );

    var idAngl = charIDToTypeID( "Angl" );

    var idAng = charIDToTypeID( "#Ang" );

    desc5.putUnitDouble( idAngl, idAng,theAngle );

if (linked == true) {

    var idLnkd = charIDToTypeID( "Lnkd" );

    desc5.putBoolean( idLnkd, true );

  };

executeAction( idPlc, desc5, DialogModes.NO );

// get layerid;

var ref = new ActionReference();

ref.putProperty (stringIDToTypeID ("property"), stringIDToTypeID ("layerID"));

ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );

var layerDesc = executeActionGet(ref);

var layerID = layerDesc.getInteger (stringIDToTypeID ("layerID"));

// =======================================================

return [app.activeDocument.activeLayer, layerID];

};

////// get folders //////

function getFolders (theObj) {

if (theObj.constructor == Folder) {return true}

};