I have added the javascript according to the Zen convention you linked earlier. But it's not working...it's showing up when you view source on the page but there is one more html line that needs to be added...namely:
Code:
<img src="./logo.jpg" onload="setImgByDate(this,holiday)">
This code is placed in the spot where header logo would go. The img src loads the "default logo header image" and the "onload" command overrides the "default logo header image" and the java script looks at the date on the users computer and loads the logo banner according to the date. The img src="./logo.jpg" is simply a fail safe in case the js fails.
More suggestions please.