BUZZ-Just Eat: Revenue guidance hike drives stock
** British takeaway ordering website Just Eat (Frankfurt: A1100K - news) top FTSE midcap gainer after hikes FY revenue guidance, reports Q3 revenue up 47 pct
** FY revenue forecast of 515-530 mln stg, up from previous guidance of 500-515 mln stg
** Group orders beat Investec (LSE: INVP.L - news) forecast of 21 pct, brokerage retains "buy" rating
** Co top gainer on STOXX Retail index (RM (LSE: RM.L - news) :sanjeeban.sarkar.thomsonreuters.com@reuters.net)