I looked for a relevant issue in JIRA, but I did not see one.
There is a FIXME note [1] in pelt's nav-main-sub contract to use the contract from common instead. Before that happens, the common contracts should be changed. Both common/html/nav-main.ft and common/html/nav-main-sub.ft add div tags with @id="tabs" and that won't validate.
Brian[1] FIXME - With a little css work, we should use the common contract and suppress this one (no need of level2tabs)
