The dollar fell hitting a six month low versus the euro, after weakness in the U.S. manufacturing sector. The dollar index fell to 78.193, down from 78.779 Thursday. The euro rose to $1.3755, versus $1.3729 before the data and from $1.3633 in late North American trading Thursday. The dollar index fell 5.3% in September and declined 8.4% over the course of the third quarter, its biggest three-month drop since the second quarter of 2002