 		 */
 		public function setItemAt( item:*, index:int ):*
 		{
-			if( index < 0 || index >= length )
-			{
-				throw new RangeError( OUT_OF_BOUNDS_MESSAGE );
-			}
-
+			if ( index < 0 || index >= length )
+			{
+				throw new RangeError( OUT_OF_BOUNDS_MESSAGE );
+			}
+			
 			var replaced:* = _source.splice( index, 1, item )[ 0 ];
 			internalDispatchEvent( CollectionEventKind.REPLACE, item, index );
 			return replaced;
 		}
-
+		
 		/**
 		 * Add the specified item to the end of the list.
 		 * Equivalent to addItemAt( item, length );

			event.location = location;
			dispatchEvent( event );
		}

	}
}
		{
			_source.splice( 0, length );
		}
		
		/**
		 * Returns whether the ArrayCollection contains the specified item.
		 */
