Saving documents via Scripts: Get current file name and set save path/file type

Question

I am writing a script that will:
-Make all layers invisible
-Make a layer named "background" visible
-Delete all the invisible layers
-Save the docment as an EPS file (leaving the original document untouched)
I am new to scripts and so have based my script by copying code from other scripts.
Here is my code:
var doc = app.activeDocument;
var name = doc.name;
var hide = function (){ // hide all layers (based on http://forums.adobe.com/thread/644267)
     var L=doc.layers.length;
     for (j=0;j<L;j++){  doc.layers[j].visible=false; }
hide();
// loop through all layers
for (var i = 0; i < doc.layers.length; i++) {
              // Create the illusrtratorSaveOptions object to set the AI options
    var saveOpts = new IllustratorSaveOptions();
    // Setting IllustratorSaveOptions properties.
    saveOpts.embedLinkedFiles = true;
    saveOpts.fontSubsetThreshold = 0.0
    saveOpts.pdfCompatible = true
//Set up Variable to access layer name
          var currentLayer = app.activeDocument.layers[i];
// Loop through the layers and make the back ground layer visible
          if (currentLayer.name == "Background") {
                    docName = name + currentLayer.name+".eps";
                    currentLayer.visible = true;
// Delete Invisible Layers (based on http://www.cartotalk.com/index.php?showtopic=7491)
var myDoc=app.activeDocument;
var layerCount=myDoc.layers.length;
for (var ii = layerCount - 1; ii >= 0; ii--) {
    var currentLayer = myDoc.layers[ii];
    currentLayer.locked = false;
    var subCount = currentLayer.layers.length;
    for (var ss =subCount -1; ss >= 0; ss--){
        var subLayer = currentLayer.layers[ss];
        subLayer.locked = false;
        if (subLayer.visible == false){
            subLayer.visible = true;
            subLayer.remove();
    if (currentLayer.visible == false){
        currentLayer.visible = true;
        currentLayer.remove();
// Save Out Document with New Name
var saveName = new File ( doc.path + "/" + docName );
doc.saveAs( saveName, saveOpts );
Everything works fine except:
1) It saves the document with the name AdobeIllustratorBackground as opposed to the name of the document
Also, I am not sure how to tell the script to save as EPS and to specify the save location.
Could some one give me some pointers?          Thanks!

Answer 1

Thanks! I changed my code to this:
var title = doc.name;
var title = title.substring(0, title.length - 3);
And it now works! (The substring thing removes the .ai extenion).
However, how do I get it to save it as an EPS? (I found this script that  saves as PNG, but I am not sure how to adapt it to EPS).
Also, how do I set the file output path?
Thanks for any help that can be offered.