 
 		delCount = 0
 		for key in keys
-			# only delete if existend
+			# only delete if existent
 			if @data[ key ]?
 				# calc the stats
 				@stats.vsize -= @_getValLength( @_unwrap( @data[ key ], false ) )

		
		# remove existing data from stats
		if @data[ key ]
			existend = true
			@stats.vsize -= @_getValLength( @_unwrap( @data[ key ], false ) )
		
		# set the value

		@stats.vsize += @_getValLength( value )

		# only add the keys and key-size if the key is new
		if not existent
			@stats.ksize += @_getKeyLength( key )
			@stats.keys++
		
