+FUNCTION {make.href.null}
+{
+ pop$
+}
+
+FUNCTION {make.href.hypertex}
+{
+ "\special {html:<a href=" quote$ *
+ swap$ * quote$ * "> }" * swap$ *
+ "\special {html:</a>}" *
+}
+
+FUNCTION {make.href.hyperref}
+{
+ "\href {" swap$ * "} {\path{" * swap$ * "}}" *
+}
+
+FUNCTION {make.href}
+{ hrefform #2 =
+ 'make.href.hyperref % hrefform = 2
+ { hrefform #1 =
+ 'make.href.hypertex % hrefform = 1
+ 'make.href.null % hrefform = 0 (or anything else)
+ if$
+ }
+ if$
+}
+