Touch events example

標題：觸控事件範例
JavaScript (index.html)：

Start: <div id="t1"></div>
Move: <div id="t2"></div>
End: <div id="t3"></div>
<script type="text/javascript">
document.ontouchstart = function(e) {
    var px = e.changedTouches[0].clientX;
    var py = e.changedTouches[0].clientY;
    e.preventDefault();
    document.getElementById('t1').innerHTML = '(' + px + ', ' + py + ')';
};
document.ontouchmove = function(e) {
    var px = e.changedTouches[0].clientX;
    var py = e.changedTouches[0].clientY;
    e.preventDefault();
    document.getElementById('t2').innerHTML = '(' + px + ', ' + py + ')';
};
document.ontouchend = function(e) {
    var px = e.changedTouches[0].clientX;
    var py = e.changedTouches[0].clientY;
    e.preventDefault();
    document.getElementById('t3').innerHTML = '(' + px + ', ' + py + ')';
};
</script>

說明：
觸控事件取得座標範例。