Turn off check Active Script
In win 2003, you will see always the message "Scripts are usually safe. Do you want to allow scripts to run" when you open a page that contain the scripts, it is not enjoyable, so to turn off it, you follow those steps :
Internet Explorer
-> Tools
-> Internet Options
-> Security
-> Select a zone - Internet
-> Custom level
-> Scroll almost to the bottom
-> Scripting
-> Active scripting - Enable/Disable
-> 2 OK
Now the dialog box don't show again