Using Javascript to rasterize a layer and maintain its position with other layers.

Question

Trying to use javascript to rasterize just the contents of a certain layer by its name.
It needs to maintain its position.
I've sort of cobbled a script, but it keeps moving the rastered art to the top layer.
Ex, top down i have Layer 4, RasterizeMe, Layer 2, Layer 1. 
The rastered contents end up on Layer 4
Any help would be apprecieated, or if theres a better method of doing this.
//  Rasterize Layer by name
    if ( app.documents.length > 0 ) {
        doc = app.activeDocument;
        if(!doc.saved){
            Window.alert("This script needs to modify your document. Please save it before running this script.");
        }else{
            createRasterLayer(doc);
    }else{
        Window.alert("You must open at least one document.");
function createRasterLayer(doc){
    var totalLayers = doc.layers.length;  //get the total number of layers in the active document
    for ( var i = 0 ; i < totalLayers ; i++){  //looping through layers            
        var currentLayer = doc.layers[i];
        var tempItem;
        if(currentLayer.visible == false) continue;   //We don't want to deal with hidden layers
        currentLayer.locked = false;                       //Unlock the layer if needed
        var layerName = new String( currentLayer.name );
        if ( layerName.indexOf("RasterizeMe") == 0 ) {
            currentLayer.hasSelectedArtwork = true;   //Select ALL in the layer
            if(doc.visibleBounds[2] == 0) continue;   // ignore empty layers
            var newoptions = new RasterizeOptions; 
            newoptions.resolution = 350;
            if ( doc.selection.length > 0 ) {
                newGroup = app.activeDocument.groupItems.add();
                for ( z = 0; z < doc.selection.length; z++ ) {
                    doc.selection[z].move( newGroup, ElementPlacement.INSIDE);
                doc.rasterize (newGroup, newGroup.visibleBounds, newoptions);

Answer 1

you're adding the group to the document, it will be the top most object on the top most layer
newGroup = app.activeDocument.groupItems.add();
use this to add the group to the current layer
newGroup = currentLayer.groupItems.add();
or if theres a better method of doing this.
I would
- loop through all layers,
- hide them all, except the one you want to rasterize,
- Rasterize the document
- unhide layers