This is a simple demo with <img> element. Try following script.

elem = document.createElement("p");
document.body.appendChild(elem);
elem.innerHTML = "<img src='http://hw001.gate01.com/~thoru/squeak/img/slogo0.gif'>";
elem.style.position = "absolute"
elem.style.top = "350px"
document.onmousemove = function (e) {
  e = e || window.event;
  elem.style.left = (e.clientX + 10) + "px";
}

The mouse bothers you? Then, try next expression.

delete document.onmousemove;