this.patcher.box and bpatchers

Hello.

I am attempting to create a JS, that when used will discover the absolute position of an named object, regardless of whether its in a batcher, a few bpatchers, or in the parent itself.

In the javascript in max pdf, the thispather.box property is used to return the parent patcher. However, I get errors trying to reference this.patcher.box from within a bpatcher. Does this only work within subpatchers?

A workaround ive found is to use this.patcher.parentpatcher,which seems to resolve parent bpatchers properly. However, it stops once it reaches the patch that contains the bpatcher, (ie, only one level above), and will not iterate to any other parent patchers.

The following code works properly when called from either the main patch, or the parent patch, but no futher above the patcher heirarchy.

I am obviously misunderstanding something. Id love a pointer in the right direction.

function locate(name)
{
    obj = this.patcher.getnamed(name);

    objCoords= obj.rect; // get the cordinates from within the objects patch

    windowCoords = this.patcher.wind.location; //get the window coords

    prev = 0;
    owner = this.patcher.parentpatcher;
    while (owner)
    {
        post(owner.name); //debug
        prev = owner;
        owner = owner.patcher.parentpatcher; //iterate up.
    }
    if (prev)
    {
        post("top patcher is", prev.name); //debug
        windowCoords = prev.wind.location; // set the window coords to the topmost window
    }        
// get our x/y position from window and local coords
    x = windowCoords[0] + objCoords[0];
    y = windowCoords[1] + objCoords[1];

    outlet(0, x,y+13, x+126, y+73);
//    post();
//    post(x, y);
}

Thanks,