Counter increase with new page

Using everyshi you can increment the counter at every page shipout:

\usepackage{everyshi}% http://ctan.org/pkg/everyshi
\newcounter{pagecntr}[chapter]% New counter pagecntr is reset with an increment in chapter
\EveryShipout{\stepcounter{pagecntr}}% Step pagecntr every page

This resets pagecntr to 0 on the first page of every chapter. atbegshi could provide similar functionality.