Safari lock up and can not reset it
My Safari web broswer has been locked up on the website www.mytechforpc.com. The info box state in the middle of my broswer screen says the following: Microsft Detected Sercurity Error, Do to Suspicious Activity. Please contact Microsoft Certified Live Techinicians for Help 1-800-274-1983. I called the number and got an India speaking tech that stated, since I have Office on my Mac, it has two viruses (Rootkit.Sirefer.Spy and Trojan.FakeAV-Downlod). He wanted me to download his software so he could have access to my computer to fix it for $100. That is not going to happen. I consider myself a pro-user of the Mac. I have battled the FBI/Internet Secuity Fraud but this is better. I have tried to force quite and restart with no luck. They have grayed out the area of Reset Safari and Clear History on Safari. My last restort is to re-install Safari but I hoping someone might have a quicker solution. Please let me know.
MacBook Pro, Mac OS X (10.7.5), Safari