Hi Moorafun,
I have looked over that page, and I have also visited it without an alert.
Is this the page that avast is alerting on?
Have you removed the bad script?
Check the log viewer to see which page it is:
Right click avast icon-->click 'Avast log viewer'-->click 'warning' section-->look at the bottom of the log (or click the date time header to bring the most recent to the top)
-Scott-