Classpath questions Follow

I am trying to manage JAR files between Ant, IDEA, and a web application.

• Will IDEA use JAR files in the WEB-INF lib directory of a Web Module as part of its classpath or do they have to be specified in the Module Libraries?

• Is there an easy way to apply additional classpaths to Ant within IDEA such that they are used across all modules in a project (instead of having to apply the additional classpaths to each module separately)?

• Is the additional classpaths setting the only way for Any within IDEA to find JARs it needs for optional Ant tasks?