Jave script

Dear Helpers,

I found this script on this website
http://www.javascriptkit.com/script/scr ... ewer.shtml

I downloaded the above said file they asked me to do it, and I uploaded that file on webs.com and changed their links as they said to do it

I also pasted the script as they said into head section of the blogger but some how all the time I end up with no results when ever I try uploading java scripts.