Help needed, and time for the May update call (May 7th, right?)

[teach]

I am trying to put together a "split" campaign to offer two similar but distinctly different "programs" to a large audience via an email campaign. I can't seem to find any simple software, javascript or script for PHP, that will "rotate" between the pages (which I need to do, because the email has to remain the same, with the same link in it to all recipients). Can someone point me to some chunk of code, or simple program that will redirect the respondents roughly 50% to http://abundance.winfotech.com/entry1.thml and the other 50% to http://abundance.winfotech.com/entry2.html ? I don't need an "ad" rotator (unless you can explain how to make one of those work for whole pages), and the Clickbank scripts will allow you to test two alternative versions of a page for the same product, but not for two different products, so that doesn't look promising (unless I am missing some big clue there).
I tried doing a random number generator in javascript that then "should" have picked a variable set to entry1.html or a different variable set to entry2.html but I couldn't get the script to work for reasons I didn't understand.
Please help if you can.
(NOW for an UPDATE I promised a couple of months ago, and didn't followup on)
I've done a lousy job of keeping up with making my WOM process transparent, partly because I have had more disappointments than successes. I "lost" several thousand dollars on a paid advertising email campaign in December. It took me a while to recover (mostly mentally) from that. But the great thing was that the "place" I went to accomplish this had a "we guarantee you'll make money" ("if we accept you as a client and your email campaign") claim on their ad, and they actually MEANT IT! Well, campaign number one was for the online store that I had been publicizing (with nearly no response) here in the Mark Joyner world of fabulous forums (in my "sig") for the www.sav-mor-on-ink.com . That ad campaign brought in less than US$100 (I won't embarass myself further by telling you the exact number, which is irrelevant, since I ended up refunding everyone every cent).
I revamped the site into a straight affiliate site for another major online printer supplies company (which has not been very profitable either, in spite of hundreds of inbound links all over the internet), and pursued only government contracts. I actually "got" one of those, a school district (as part of a Section 8 setaside, I believe) but it was "one of multiple" awards under this contract and it hasn't brought in a cent. I did get an "invitiation to bid" on a state contract, but haven't heard about the results, yet.
On the other hand, because of the guarantee the advertising firm gave, they did a "make good" (as it used to be known in the advertising industry), and did another campaign, based on another product. This time I recouped all but a couple of dollars that I had lost/spent unproductively back in December so I am quite happy. I also used a squeeze page that captured about 400 names, of which about 140 became subscribers when "offered" followup advice (and freebies) in a newsy, email format at irregular intervals. So all-in-all, I consider this to be a pretty positive step, although it is not exactly a major source of income yet.
I have also put up, though not really publicized (adequately) several other small sites that include a diet/health site ( undietlifestyle.winfotech.com ) and one on remedial reading for younger students. My alternative energy site winfotech.com/energy/ is still growing slowly, but the business behind it all is gaining an international reputation and has some promising prospects for projects from Florida/Gulf Coast region and Montana. We are partnering with a Canadian firm and things get more exciting all the time (which is my excuse for not actually doing more of the WOM steps than the few that I have managed).
Of course in any course, the main thing is to DO SOMETHING, however small, to keep moving forward and keep improving customer experience, and I am trying to do that.
If you want to know what DID sell, see the first paragraph of this post, it was the same as what now shows in "entry1.html".
I'm looking forward to the next monthly update/checkin call this week. I hope to "see" you there.

love

Stafford "Doc" Williamson