        Returns the element at the specified position in this list.
            
            @param index: The position of the element to return.
            @return The element at the specified position in this list.
        */
        public function getItemAt(index:uint):* {
            return this._collection[index];
        }
        
        /**
            Returns a portion of this list.
            
            @param startIndex: The starting position.
            @param endIndex: The ending positio