Digital Workshop

I have a SCORM course which works perfectly in all PC/MAC browsers - tested from cloud.scorm.com.

But I have a problem to to find a way how to close a tab and track communication if running a course from the iPad (located on cloud.scorm.com). Do you have any experience or link for inspiration?
There are many restrictions and changes in HTML/javascript security under iOS but it should be possible.
Ota

After a half day of research I've found why the exit action doesn't work.
I used to use rollover but there is a bug in IE/Firefox when initially hidden. So I had to change my "buttons" to frames but I've lost advantage of states .

Back to my problem with exit/close tab on the iPad (iOS 7.1.1). When I changed my frame "button" with exit action to the real button it has started to work.

O.

udpate 2: sorry. it MUST contain a text to work it correctly - if there is just an image it does not work.