Firefox的触控演示，超酷!

Felipe Gomes为Firefox添加了触控功能，可以在内容空间中使用（Web devs中也可以使用）。

很酷的演示：http://vimeo.com/6214945

var assignedFingers = {};
var lastused = 0;
 
function touchMove(event) {
  var divId;
  if (lastused <= 4) return;
  if (assignedFingers[event.streamId]) {
    divId = assignedFingers[event.streamId];
  } else {
    divId = "trackingdiv" + (++lastused);
    assignedFingers[event.streamId] = divId;
  }
  document.getElementById(divId).style.left = event.clientX + 'px';
  document.getElementById(divId).style.top  = event.clientY + 'px';
}
 
document.addEventListener("MozTouchMove", touchMove, false);
document.addEventListener("MozTouchRelease", function() { lastused--; }, false);

点击查看所有示例代码：https://wiki.mozilla.org/Firefox/Projects/Multitouch_Polish/DOM_Events/Examples