avast consniders javascript files as viruses

My site contains some javascript files. everytime I check my site and come to the page that has a javascript avast start alarming it has a virus. what is the problem ? can anyone help me ?
i am sure these codes have noting malicious.

Well so information might help, like the site, malware name, etc.

Check the avast! Log Viewer (right click the avast ‘a’ icon), Warning section, this contains information on all avast detections. C:\Program Files\Alwil Software\Avast4\ashLogV.exe

  • Or check the source file using notepad C:\Program Files\Alwil Software\Avast4\DATA\log\Warning.log and copy and paste the entry.

When posting URLs to suspect sites, change the http to hXXp so the link isn’t active (clickable) avoiding accidental exposure.

Perhaps your site has been hacked as avast is very hot on this type of thing and of all those I have checked all have proven to be good detections. Every 3.6 seconds a website is infected http://forum.avast.com/index.php?topic=47096.msg396648#msg396648.