Set owner to @kwalrath.
Added Docs-UpAndRunning label.

Removed Area-Documentation label.
Added Area-Site label.

How about changing it to this:

  // Find all elements with class=os. Note the string interpolation with $os.
  // If os is 'windows', the method call becomes querySelectorAll('.windows').
  for (var elem in querySelectorAll('.$os')) {
    elem.hidden = !shouldShow; // Show or hide each element.

Added Started label.

Or maybe:

  // Find all elements with class=os. For example, if os == 'windows', call
  // querySelectorAll('.windows') to find all elements with the class "windows".
  for (var elem in querySelectorAll('.$os')) { // $os does string interpolation
    elem.hidden = !shouldShow; // Show or hide each element.
  }

CL in review: https://chromiumcodereview.appspot.com/453093005/

Added Fixed label.

This issue has been moved to Github as part of a migration. Please use the Issue on Github going forward: https://github.com/dart-lang/dartlang.org/issues