Thanks for the information.
Here is where I stand now:
I checked maybe 20 tours and they all have the above code added to the html page. This is also true of the slide shows I have published.
My tech guy says that it most likely did not come from my computer but from a third party that just hacked my site. I have scanned my computer with 3 different programs and they all say it is clean.
I had to sign in to "Google webmaster tools" and they gave me information on what to look for (the above code) and to just delete it. But seeing as how I have hundreds of pages with html that was nearly impossible. So I deleted a tour, that I knew had the code, from the server. Republished the tour and checked it and it was clean on the server. So, the only thing left to do was just republish everything to the server which over rode the existing pages. This took about 8 hours over high speed cable at night while I was asleep. This of course was after I changed the password. I did not know you could use symbols in addition to letters and numbers. So I added a bunch of symbols to my new password.
Checked it this morning and all pages are clean. Through the Google webmaster tools page I requested a "review" of my site. I am still waiting for them to remove the "This site may harm your computer" warning. Their forun says it should take no longer than 24 hours. They have reviewed and cleared the site but have not removed the warning.
I hope this information will help others that may run into this problem.
Nikon D300, D3s, Nikon 10.5 lens, RingT105N+Footplate+MrotatorTCPs, Giottos MT9261 Tripod, Manfrotto 410 Jr geared head.
If you know the "secret" then everyday is a good day!