Getting a list of all executing functions inside a plugin

Getting a list of all executing functions inside a plugin

I was just checking out the code for jBox.js ( go to source and open jBox.js ) , basically i was more interested in the tooltip functionality . Once the jBox.js script runs , is it possible to track all the functions that execute inside jBox.js ? I.E. i am only interested in the functons that actually execute , because jBox.js is a multipurpose plugin , eg. you can use it for modals , tooltips and also a gallery , i only want to see the functions or code that is relavent to the tooltip functionality and hence i want the list of functions that execute when jBox.js gets called . 

one way of doing this i believe, suppose i know the last executing function in jBox.js , i can add a breakpoint on that function and as soon as the execution reaches that part of the code , in the CALL STACK , i can see all the previous functions that have been executed . But that does't seem the right way to do it . So once again my question is , can i get a list of all executing functions inside a plugin , when the plugin gets called ? is it possible ? 

Thank you .