ToString() overrides in constructor-less classes? [CS3,JS]

Question

How do I override the toString() method in a class that lacks its own constructor?
(I'm actually working with the ManagedArticle class from Woodwing's SmartConnection plugin, but the probem appears to be general for any such class, so here we are with Page).
Example:
Page.prototype.toString = function() {
     return "[object Page "+this.name+"]";
p0 = app.activeDocument.pages[0];
$.writeln("1: "+p0);
$.writeln("2: "+p0.toString());
$.writeln("3: "+Page.prototype.toString.call(p0));
p1 = app.activeDocument.pages.add();
$.writeln("4: "+p1);
$.writeln("5: "+p1.toString());
$.writeln("6: "+Page.prototype.toString.call(p1));
produces:
1: [object Page]
2: [object Page]
3: [object Page 1]
4: [object Page]
5: [object Page]
6: [object Page 2]
Is this a fool's errand? I'd really like easier debugging of this class and overriding the toString() would seem to be the way-to-go.
Thanks!

Answer 1

You actually can do it to InDesign DOM objects (well some of them -- in certain ways anyhow). Here's a particularly interesting one:
var itemByLabel = function (label){
    var labelIndex = null;
    var labelArray = this.everyItem().label;
    for(var i=0;i<labelArray.length;i++){
        if(labelArray[i]==label){labelIndex = i;break}
    if(labelIndex===null){return null}
    return this.item(labelIndex);
app.documents[0].pageItems;//needed to initialize the PageItems object
PageItems.prototype.itemByLabel = itemByLabel;
app.documents[0].paragraphStyles;//needed to initialize the ParagraphStyles object
ParagraphStyles.prototype.itemByLabel = itemByLabel;
etc...
I am very wary of prototyping anything but the simplest JS objects though...
You can do it with a regular function or method in a custom library (like Bob likes to do).
function CustomToString(object){
     var string = object.toString();
     string+="bla bla bla";
     return string;
Harbs