Here's an example, in which a data-bound server-side combo box gets an extra client-side event handler assigned, that shows or hides table rows containing content that is unique to the selected item in the combo box. It took me a while to track down the use of style.display instead of style.visibility (which left lots of whitespace).
//On the server side...
protected void Page_Load(object sender, EventArgs e)
//Add the client-side event for changing the content type.
//On the client side, when the users select a new content type...
//Store the Content drop-down control, and the selected item's text.
var ContentDDL = document.forms.<%=ContentType.ClientID%>;
var ContentType = ContentDDL[ContentDDL.selectedIndex].text;
//Show or hide the rows of the table related to the selected content, based on if the item text starts with predefined strings.
//It may seem odd to be databinding the combo box if we know what options there are... but we databind to get the IDs from the database.
ToolsRow.style.display= (ContentType.indexOf("Tools") == 0) ? "block":"none";
BinariesRow.style.display= (ContentType.indexOf("Binaries") == 0) ? "block":"none";
SamplesRow.style.display= (ContentType.indexOf("Samples") == 0) ? "block":"none";
DocumentationRow.style.display= (ContentType.indexOf("Documentation") == 0) ? "block":"none";
Today we celebrated the newest release of the Windows SDK. There were alcoholic and non-alcoholic drinks available in a hallway nook for an hour or so, and everyone gathered around to chat. Earlier in the day, I was feeling really good about my work and wanted to take a break; towards that end, I had polled for ping pong players and had received replies from around 6 people! It looks like it hasn't been a frequent activity, but that people were willing to try it out again. So during the social, three of us headed upstairs to play for a while.
Side trip: I got into ping pong on my last team. Having never played before, everyone was happy to "teach" me (i.e. I lost a lot :). A year or two passed, and I improved quite a bit. The last year, though, our manager informed us [writers] that we had to refrain from playing ping pong during ship mode, as we had a lot to do and it wouldn't be viewed favorably if we were seen recreating (believe it or not, there can be quite a bit of politics at Microsoft, varying team-to-team and group-to-group). Well, that hiatus lasted for over a year and two ship cycles (and is still in effect, I believe). At any rate, now I'm in a different team, so it looks like my occasional ping-pong-playing can resume! Note that, as always, you have to be professional about it; just because activities are available for taking a break doesn't mean you should use them to detriment of work.
When we came back, a few guys were playing hallway hockey game. Most everyone had headed home. Which I am too... have a great weekend!