function tryIt(obj) {
    var ps = document.getElementsByTagName('p');
    for (i = 0; i < ps.length; i++) {
      if (ps[i].getAttribute("class") == "notep") ps[i].style.background = "#fff";
    }
    test = document.getElementById(obj);
    theid = "p" + test.getAttribute("name");
    fpara = document.getElementById(theid);
    fpara.style.background = "#cfcfcf";
  }