Dollar's rebound from 98.15 in part due to cross selling in yen suggests recent erratic decline has formed a temporary low yesterday and further consolidation above there is seen with upside bias for another corrective rise to 99.90/00, however, reckon resistance at 100.43 would hold from here and yield retreat later.  
On the downside, below 98.60/70 would bring possible re-test of aforesaid support at 98.15 and break would yield one more fall to 97.50/60.