Photoshopt script that does the same thing a ctrl-clicking a layer

ctrlLayerSelect.jsx

#target photoshop
 
// Mini-Script that does the same thing a ctrl-clicking a layer.
// Licensed under the GPL

ctrlLayerSelect();

// does the same thing a ctrol-clicking a layer;
function ctrlLayerSelect() {
    var id1 = charIDToTypeID( "setd" );
    var desc1 = new ActionDescriptor();
    var id2 = charIDToTypeID( "null" );
    var ref1 = new ActionReference();
    var id3 = charIDToTypeID( "Chnl" );
    var id4 = charIDToTypeID( "fsel" );
    ref1.putProperty( id3, id4 );
    desc1.putReference( id2, ref1 );
    var id5 = charIDToTypeID( "T   " );
    var ref2 = new ActionReference();
    var id6 = charIDToTypeID( "Chnl" );
    var id7 = charIDToTypeID( "Chnl" );
    var id8 = charIDToTypeID( "Trsp" );
    ref2.putEnumerated( id6, id7, id8 );
    desc1.putReference( id5, ref2 );
    executeAction( id1, desc1, DialogModes.NO );
}

How can you select a specific layer with this and not just the active layer?