FYI, also, for common "chunks" of code that you might want to reuse throughout your config, consider putting said code into a panel label and then doing from the activity/page script...

this.eval(CF.widget('mypanelscript','scriptspage','scriptsactivity').label);

This will compile the script in the panel label including any var or functions and make them avaiable in the current PS Object (button, page or activity).

Search for last 2 years for +eval( and you can read more about the possibilities.