[flexcoders] Populating comboBox

[candysmate]

I'm tring to populate a comboBox with

var dsWeek:Array = [];
[Bindable]
var dsWeekArray = new ArrayCollection(dsWeek);
var systemUtilitiesWeek:int = 35;

private function initDissection():void
{
        dsWeekArray.addItem({week:"Select"});
                
        for(var ds1:int = 1; ds1 <= systemUtilitiesWeek; ds1 ++)
           {
                        dsWeekArray.addItem({week: ds1});
           }
           
        dsWeekArray.refresh();   
}

I'm expected the comboBox, with dataprovider set to {dsWeekArray}
to be:

Select
1
2
3
4
5
...

but it just says [Object, object]

Where have I gone wrong please?