question about svg

Good afternoon;

First of all I would like to thank your for creating such a resources 
for people like me to benefit from it.

I am working on a small project for my university assignment I need your 
help. Because i could not find an answer for what i am looking actually.

My problem is;

I was wondering that is it possible to do such a possible thing with 
just using svg. here is the image;

http://s18.postimage.org/csyespybt/issue.jpg

when user clicks on this svg component in stage-1 it will expand and 
show another graph inside.
When user clicks on graph in stage-2 it will return to stage-1 again. It 
is like expandable component.

Thank you for separating time and reading this e-mail despite your daily 
work.

Regards...

Can ELDEM