<map name="map">
    <area shape="rect" coords="0,0,100,100" href="#">
</map>
<img id="target" style="width: 200; height: 200; border: solid black;" usemap="#map">
<p>
    This box should turn green when hovered, except when the pointer is over the
    top left quarter.
</p>
<p id="result"></p>
<script>
    var target = document.getElementById("target");
    target.addEventListener("mouseover", function(event) {
        event.target.style.backgroundColor = "green";
        document.getElementById("result").innerHTML = "Green";
    }, true, false);
    target.addEventListener("mouseout", function(event) {
        event.target.style.backgroundColor = "";
        document.getElementById("result").innerHTML = "Not green";
    }, true, false);

    if (window.eventSender) {
        testRunner.dumpAsText();
        document.body.offsetTop;
        eventSender.mouseMoveTo(150, 150);
    }
</script>