Move/Copy multiple Layers to other document with Script

Question

Hello, I have one question to how move or copy multiple layers to other document?.
With this script i can move one by one:
var docRef = app.activeDocument;
var moveLayer1 = docRef.artLayers.getByName('Title');
var moveLayer2 = docRef.artLayers.getByName('Background');
var moveTo = app.documents.getByName('Untitled-1');
var layerRef = moveLayer1.duplicate( moveTo, ElementPlacement.PLACEATBEGINNING);
var layerRef2 = moveLayer2.duplicate( moveTo, ElementPlacement.PLACEATBEGINNING);
but i need move two layer in one step....

Answer 1

var docRef = app.activeDocument;
select_layer("Title");
select_layer("Background", true);
var moveTo = app.documents.getByName('Untitled-1');
duplicate_active_layer(docRef, moveTo);
function select_layer(name, add_to_sel)
    try {
        var desc = new ActionDescriptor();
        var ref  = new ActionReference();
        ref.putName( charIDToTypeID( "Lyr " ), name);
        desc.putReference( charIDToTypeID( "null" ), ref );
        desc.putBoolean( charIDToTypeID( "MkVs" ), false );
        if (add_to_sel) desc.putEnumerated( stringIDToTypeID( "selectionModifier" ), stringIDToTypeID( "selectionModifierType" ), stringIDToTypeID( "addToSelection" ) );
        var ok = true;
        try { executeAction( charIDToTypeID( "slct" ), desc, DialogModes.NO ); } catch(e) { ok = false; }
        ref  = null;
        desc = null;
        return ok;
    catch (e) { alert(e); throw(e); }
function duplicate_active_layer(src_doc, dst_doc)
    try {
        app.activeDocument = src_doc;
        var d = new ActionDescriptor();
        var r1 = new ActionReference();
        r1.putEnumerated( charIDToTypeID( "Lyr " ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Trgt" ) );
        d.putReference( charIDToTypeID( "null" ), r1 );
        var r2 = new ActionReference();
        r2.putName( charIDToTypeID( "Dcmn" ), dst_doc.name);
        d.putReference( charIDToTypeID( "T   " ), r2 );
        d.putInteger( charIDToTypeID( "Vrsn" ), 2 );
        executeAction( charIDToTypeID( "Dplc" ), d, DialogModes.NO );
        d = null;
        r1 = null;
        r2 = null;
    catch (e) { alert(e); throw (e); }