$.datepicker.parseDate('ymmdd', '070126'); Missing number at position 6

$.datepicker.parseDate('ymmdd', '070126'); Missing number at position 6

I need to parse dates like '070126' to '26 Jan 2007'. You can do that with the datepicker, but it gives me the an error...

$.datepicker.parseDate('ymmdd', '070126') #=> Missing number at position 6