When TLD's are not in the default location?

I'm using ANT to build my web application's WAR file and my TLD's are not in the normal WEB-INF directory relative to the JSP directory as they are when deployed.

Is there any way to tell Idea where they are so I can use the code completion and debugging features?

If not, will using an external resource pointing to, for example, Sun's URI for the JSTL tags work?

Thanks,

Greg