Has anyone hacked edituser.php?op=avatarform to show more than one list of avatar groups?

If you have more than a couple dozen avatars, the popUpWindow that displays them loads too slowly. It would be ideal to have several Links - when clicked, where each would display a different group of avatars in the popUpWindow.

Xoops 1.3 had such a hack, but that was before kernel/avatar structure.

Well, I was able to add several additional "Lists" to show up in edituser.php?op=avatarform (which a user clicks to display a unique group of avatars to select from.)

Unfortunately, I am running into a problem with the javascript function in misc.php - myimage_onclick(counter) - it starts counting the entire avatar list and returns incorrect selections. Is there any way to change the javascript function to select the avatar from its unique field "avatar_id" rather than the relative "counter" variable?

Sorry, for such a technical post, but if someone can help me with the javascript, I will be able to contribute this hack so others can have more than one "List" of avatar groups.