When trying to open a a SCORM content in a new window using IE7, new windows fails to open with JavaScript error:

Line: 158
Char: 29
Error: Invalid argument
Code: 0
URL: http://yourdomain.tld/mod/scorm/player.php?a=1&scoid=2

Error does not appears when using Firefox 2. Problem appeared just after the weekly update with build 20080730, previous weekly build was not affected.

To reproduce:
1. add a new SCORM activity int a Moodle course
2. set window size, and set SCORM to be opened in a new window. Allow window to be resized and scrolled.
3. try access the SCORM form the course: in FF2 new window opens, in IE7 new window fails with JavaScript error