All id used by CYJS framework begin with ID in uppercase, as IDheader.
All classes begin with Class with upper beginning C, as ClassRow.
All CYJS framework functions begin with CY in uppercase, as CYLoadPage().
Only the CyInit_mypage() is different : it begins with Cy : that one will be the function name you’ll have to use to initialise a page called mypage. Since it is a function you’ll have to write, it is not really part of the framework, however it is necessary to work with.