public function updateThumb(indexToBeUpdated:int):void {

	        var intervalId:uint = setInterval(updateNavItemThumb, 1000, indexToBeUpdated);
			intervalIdArray.push({intervalId: intervalId, pageIndex: indexToBeUpdated});

			if (extraPageAdded && doodleVariables.PRODUCT_TYPE != DoodlePadConstants.BOOK_TYPE) {
	        	while (numChildren > doodleVariables.PRODUCT_PAGES.length()) {
        			removeChildAt(numChildren-1);
        			extraPageAdded = false;
        		}

        	}
		}