Am I infected or is this just a close call??

Viruses and worms
1 
  Ok so I was surfin the web today and BAM!!! all of the sudden I hear a voice on my computer saying "Warning Virus detected" or something to that extent and a popup comes up. I realize it was my avast antivirus speaking to me. I immediately click on abort connect on the avast popup and close my firefox browser, but not without the popup happening 2 more times. I then proceeded to update my antivirus software which I havent done in a month and did a full scan of my system. The scan showed no viruses found. I also ran Adaware with also nothing critical found. 

Here is my log file under the heading "Warnings":

7/16/2005 11:51:00 AM SYSTEM 1684 Sign of “JS:ClassLoader-7” has been found in “http://195.95.218.83/users/sale/web/winxp/classload.jar\GetAccess.class” file.
7/16/2005 11:51:04 AM SYSTEM 1684 Sign of “VBS:Malware [Script]” has been found in “http://195.95.218.83/users/sale/web/last/start.html” file.
7/16/2005 11:51:13 AM SYSTEM 1684 Sign of “JS:ClassLoader-7” has been found in “http://195.95.218.83/users/sale/web/winxp/GetAccess.class” file.

There is nothing under the emergency, alert, and critical headings of my avast log viewer. I just wanna ask you guys, am I in the clear or do I need to do something more to ensure that my computer is clean. Im really concerned about this because I just got this computer 2 months ago! Thanks!

2

You have nothing to worry about. Files were blocked by Web Shield before they could even enter your system.

3

Just a reminder to fully read the description when you recieved a pop-up cause they should clear things up about the virus being detected and block by webshield. ;D

4

You should also see the clue in the warnings that the location is in an internet URL not an HDD location so it isn’t on your system.

5

Thanks for the fast responses guys! much appreciated