strikethrough ubiquity command

x

function cmd_strikethrough() {
  var doc = context.focusedWindow.document;

  if (doc.designMode == "on")
    doc.execCommand("strikethrough", false, null);
  else
    displayMessage("You're not in a rich text editing field.");
}
cmd_italic.description = "If you're in a rich-text-edit area, strikes through the selected text.";