I don't know what the problem would be, but:
1. Why do you have a script tag for each function? You can encapsulate all functions in one script tag.
2. What browser are you testing with? Double check the versions. If you use IE 6 on Windows 2000 and on XP, you should get the same results. Similarly Netscape 7 on either OS should do the same. If you're using the same version browser on different OS's, and you're getting bad results on XP then post back.
Also, how do you know that it's not working at all? Have you put alert statements inside your functions to see that they're being called?