This is the url of the iframe:
www.tinywebgallery.com/blog/e59/page-param.php

Page 1 - page-param.php?mypage=1&mylevel=111

Page 2 - page-param.php?mypage=https%3A%2F%2Flocalhost%2Fwordpress32%2Fwp-content&mylevel=222

Page 3 - page-param.php?mypage=3&mylevel=333