THE Australian dollar was weaker at noon, after retesting a three-month low, as less dire than expected US employment data helped the American currency maintain strength. Ironically, the local unit later stayed above $US0.9300 even though domestic data on job ads and house prices pointed to signs of an economic slowdown. At 12noon (AEST), the Australian dollar was trading at $US0.9315/17, down from Friday's close of $US0.9364/66. During the morning, the Australian dollar traded between a high of $US0.9319 and and a three-month low of $US0.9285. It reached that low at 9.30am AEST, after testing it during the offshore session....