Save layers of Acorn image as separate files

var path = "/Users/jsb/Desktop/LayerTest";
var filename = "jefftest.acorn";

var acorn = JSTalk.application("Acorn");
var doc = acorn.open(path + "/" + filename);

var count = doc.layers().count();

for (i = 0; i < count; i++)
{
    doc.layers()[i].visible = NO;
}

for (i = 0; i < count; i++)
{
    if (i > 0)
        doc.layers()[i-1].visible = NO;
        
    doc.layers()[i].visible = YES;
    
    doc.dataOfType("public.png").writeToFile(path + "/layer" + i + ".png");
}

doc.close();

ok!. wondered about that. thanks for the clarification.