redirect website base on date

[davelf]

hi, here is the problem:

I want to make my a web page that have different index each time it's access.
So i get it base on date:
for example, today is monday, so when some one open: www.testing.com
it will redirect to index_monday.html (www.testing.com/index_monday.html)
when it's on tuesday, so it redirect to index_tuesday.html
and so on.

I find this website that have the same idea / concept with mine, but it's randomize.
Here is it:
http://www.imaxxo.com/indexstatic.html

Thank you so much.