function rollon() {
  if (event.srcElement.tagName == "A") {
    event.srcElement.style.color = "#FF0000";
    event.srcElement.style.cursor = "hand";
    event.srcElement.onmouseout = rolloff;
  }
}

function rolloff() {
    event.srcElement.style.color = "";
    event.srcElement.style.cursor = "auto";
}

document.onmouseover = rollon;