I found the applet that used to be on the Hivelogic website:
http://automaticlabs.com/products/enkoder

You can either download it and run it on your PC or you can run it online.
Either way, the java code it produces looks like this:

script type="text/javascript"
//![CDATA[
function hiveware_enkoder(){var i,j,x,y,x=
"x=\"783d2232517d783635363d5c223634323034366636363 7363337323666353664366432"
+
"3635363037336537343730363265373136643737323265353 6393763323234363533653432"
+
"3832333663323363363936363132333662303638323036373 2363836353536363732363364"
+
"3535323063323237343636643666323031363937333636633 7353665343666363432336137"
+
"3036643236313635323663363036313536663665323665363 0363535343036643637333631"
+
"3639323633366332363736313363633666326636363236313 3653136633232323265363933"
+
"62653635333033373435625c223b633232793d27323037273 b663436396f7228373436693d"
+

This is actually only about half of the code. I doubt a spider would find
my address in there.

You then paste this code into your HTML.

73,

Roger K6XQ