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

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!