<!DOCTYPE html>
<html>
<head>
<script>

function boom()
{
  document.getElementById("j").focus();
  try {
    document.execCommand("insertunorderedlist", false, null);
  } catch(e) { }
}

</script>
</head>
<body onload="boom();"><span><span contenteditable id="j"></span>T</span></body>
</html>