title: Paste only plain-text into editable div
body: <p>I need to be able to allow a user to paste into an editable div (via whatever the user chooses: right-click and paste, shortcut key, etc), but I want to discard formatting and only take the plain text.</p>
  <p>I can't use a textarea since the div will allow basic formatting (bold and italic) if applied by user-initiated events.</p>
  <p>The <code>onbeforepaste</code> event looked promising, but according to quirksmode the support is so limited as to be unusable.</p>