/*
 * Simple Ajax IME client
 * Taku Kudo <taku@chasen.org>
 */
 
var textarea;

function test(e) {
  k = textarea.body.getElementsByTagName("span");
  if (k.length) {
    alert(k[0].offsetLeft + " " + k[0].offsetHeight);
 }
}

onload = function ()
{
  textarea = document.getElementById("edit").contentDocument;
  textarea.designMode ="on";
  textarea.addEventListener('keypress', test, true);
  textarea.execCommand('underline', false, null);
}