Run function i different window on IE MAC

Hi!

We have developed an application where a popup window returns
information to the opener window by calling a function. This is the
function on the pop-up window:

function AddArchiveToOrder(archive_id, order_id)
{
window.parent.opener.AddArchiveToOrder(order_id,ar chive_id);
window.parent.close();
}


And on the opener window the functions that opens the pop-up is like
this:
function OpenMediaAssetBank(url,order_id)
{
AppURL = url + '?order_id=' + order_id;
window.open(AppURL,'_submab',"toolbar=no,scrollbar s=yes,height=540,width=800,left=156,top=192,resiza ble=yes,status=no");
}

....and the function called from the pop-up:
function AddArchiveToOrder(order_id,archive_id)
{
nPos = document.forms[0].action.indexOf('?');
document.forms[0].action = document.forms[0].action.substr(0,nPos) +
'?archive_id='+archive_id;
document.forms[0].submit();
}

The pop-up and the opener window are in the same domain, and this
works fine on IE/windows. On the mac however, the AddArchiveToOrder
function on the pop-up window won't run. Does anybody have an idea
about what the problem is?

regards
Andreas Folkesson