code: public Content getTargetProfilePackageLink(PackageDoc pd, String target,
              Content label, String profileName) {
          return getHyperLink(pathString(pd, DocPaths.profilePackageSummary(profileName)),
                  label, "", target);
      }
docs: Get Profile Package link, with target frame.
  
  @param pd the packageDoc object
  @param target name of the target frame
  @param label tag for the link
  @param profileName the name of the profile being documented
  @return a content for the target profile packages link