Your cash is being counted <a href=" http://www.elsiemagazine.com/avanafil-nice.pdf ">vivus avanafil fda approval</a> LONDON, Oct 2 (Reuters) - Britain's top share index slippedto a three-month low on Wednesday, with retailer Tesco fallingmost sharply after a weak trading update and with broadersentiment weighed down by concerns over a continued U.S.government shutdown.