Instance manager and subforms

Question

I'm using a JS statement that I've found to dynamically delete subform rows when the user clicks a delete button:
Subform.Row1.instanceManager.removeInstance(this.parent.index);
This works if my delete button appears in Row1, like this:
Subform
Row1
Button
Field1
Field2
However, I'd like to wrap the button in a subform so that I can hide the button on print. My table looks like this:
Subform
Row1
SubformA
Button
SubformB
Field1
Field2
Row1 is a flowed subform so that when I hide SubformA I don't get any empty space.
The JS statement isn't working. With my ignorant eyes it appears that instead of this.parent.index I need something like this.grandparent.index. Is something like this do-able? Any alternative ideas?

Answer 1

Thank you rlunka! That did the trick. And thank you for your quick reply Paul. I didn't tell you that I was trying to get fancy by using a hidden button object and a graphic. To get the graphic positioned on top of the button, I placed them within a positioned subform.
So my table really looks like this:
tTravelers
Row1
sTravelers (flowed subform)
untitled subform (positioned subform)
removeButton
image
untitled subform
Field1
Field2
FooterRow
untitled subform
addButton
image
The click event on the removeButton object looks like this:
tTravelers.Row1.instanceManager.removeInstance(this.parent.parent.parent.index);
sTravelers is a flowed subform, so when I hide the removeButton untitled subform (which takes up the entire row width), I don't get any blank space. Sorry if this is too much info. Now I just need to test the heck out of it.