Individual column filtering - sort fields in select element

heiter

click on the "select" element beneath the column "Browser" in this example. It isnt sorted, how can I sort the fields alphabetically.
--> http://datatables.net/examples/api/multi_filter_select.html

the data is created here:
[code]
function fnCreateSelect( aData )
{
var r='', i, iLen=aData.length;
for ( i=0 ; i