Node onclick, text in node, and label scaling

[Daniel Schaefer]

Reference: http://dev.worklist.net/~dans/candpweb2_family/web/family#TJ

In the above RGraph, I would like to do a combination of 3 things:
1) I would like to implement a Node.onClick event (not Label.onclick)
AND
2) I would like to add text to a custom Node instead of creating a label. In doing so, would the scaling be proportional to the circle and the image?

OR

3) Upon zooming the graph, adjust the label's size, the text size, and the position to be proportional to the size of the scaled custom Node


I've done a search in the group and was not able to find a concrete solution to either combination. Any suggestions, topic URLs, or implemented solutions would be greatly appreciated. Thanks in advance.