weather underground forecast map hiccup

[tz1]

http://www.wunderground.com/ndfdimage/v ... =wx&msg=10

I have 2.1.2.8

When I select the day and time I want for the map from the dropdown, it is supposed to switch to that map with an onchange, but doesn't. There is some strange html changes:

<form name="changeperiod" action="/ndfdimage/viewimage">
<input type="hidden" value="us" name="region">
<input type="hidden" value="wx" name="type">
<select class="full" onchange="document.forms['changeperiod'].submit();" name="msg"> //(collapsed from firebug but has the values)
<noscript> <div><input type="su...ast Period" /></div> </noscript>
</form>

This started happening very recently.

I should note that the <noscript> section is there even if I "temporarily allow all this page".

[therube]

Does not work in IE8.
Does not work in Safe Mode, so not a NoScript issue.

Next/Previous does work.

If you disable JavaScript on wunderground.com, then you can select the wanted date from the dropdown, then click the (then appearing) "Change Forecast Period" button, successfully.