Dollar's decline fm yesterday's high made in Asia at 92.33 suggests recent 'erratic' rise from 88.01 has possibly formed a temporary top there and a firm break of 91.33 (previous res, now sup) would add credence to this view, then a retracement of aforesaid upmove towards chart objective at 90.77 would follow but near term oversold condition is expected to keep price above 90.48 today.  
On the upside, only above 92.18/23 res would revive previous bullish prospect of further gain to daily res at 92.55, however, 'weakening of upward momentum' should cap dollar well below 92.80/90 and bring decline later this week.