Prosecutors say they have a mountain of evidence against Major League slugger Barry Bonds. They point to steroid test results, notes and calendars from his former trainer, all part of a stack of 223 pages of documents unsealed Wednesday. The ex-San Francisco Giants outfielder is accused of obstructing justice and lying to a grand jury investigating the use of steroids in professional sports. Bonds denied adamantly that he used performance-enhancing substances, including a then-undetectable designer drug, at the time prosecutors say he was using them. Bonds’ attorneys want a major chunk of the documents kept out of court. Bonds, 44, holds Major League Baseball’s single-season and all-time home-run titles. He has pleaded not guilty to the perjury and obstruction of justice charges and has been free on $500,000 bond. A hearing in the case is scheduled for today.