// =======================================================
var idMk = charIDToTypeID( "Mk  " );
    var desc1 = new ActionDescriptor();
    var idNull = charIDToTypeID( "null" );
        var ref1 = new ActionReference();
        var myPtrn = charIDToTypeID( "Ptrn" );
        ref1.putClass( myPtrn );
    desc1.putReference( idNull, ref1 );
    var idUsng = charIDToTypeID( "Usng" );
        var ref2 = new ActionReference();
        var idPrpr = charIDToTypeID( "Prpr" );
        var idFsel = charIDToTypeID( "fsel" );
        ref2.putProperty( idPrpr, idFsel );
        var idDcmn = charIDToTypeID( "Dcmn" );
        var idOrdn = charIDToTypeID( "Ordn" );
        var idTrgt = charIDToTypeID( "Trgt" );
        ref2.putEnumerated( idDcmn, idOrdn, idTrgt );
    desc1.putReference( idUsng, ref2 );
    var idNm = charIDToTypeID( "Nm  " );
    var docName = app.activeDocument.name;
    desc1.putString( idNm, docName );
executeAction( idMk, desc1, DialogModes.NO );
// =======================================================
var idCls = charIDToTypeID( "Cls " );
executeAction( idCls, undefined, DialogModes.NO );