无缝jquery天棚/票机

我在这里找到了一个用户发布的无缝jquery字幕/ticker代码。我已经将它修改为当滚动/滚动时启动和停止,但当用户滚动时,它通常会滞后。它从不完全停止,但滚动的速度有时是其原始速度的1/10。我加快了速度,所以更容易看到这种滞后。不管怎样,如果有人知道如何解决这个问题,我会非常感激的。

JQuery

 $(function() {
  var marquee = $("#scroller");
  marquee.css({"overflow": "hidden", "width": "100%"});

  // wrap "My Text" with a span (IE doesn't like divs inline-block)
   marquee.wrapInner("<span>");
  marquee.find("span").css({ "width": "49%", "display": "inline-block", "text-align":"center", "padding-right":"1%" });
  marquee.append(marquee.find("span").clone()); // now there are two spans with "My Text"

   marquee.wrapInner("<div class='scrolling'>");
  marquee.find("div").css("width", "200%");

  var reset = function() {
       $(this).css({"margin-left":"0%"});
       $(this).animate({ "margin-left": "-100%" }, 500, 'linear', reset);
  };

  reset.call(marquee.find("div"));

  marquee.find("div").bind({
mouseenter: function () {
 $(this).stop();
 if($(this).css("margin-left") == "-"+$("#scroller").width() + "px") $(this).css("margin-left", "0%");
},
mouseleave: function() {
 $(this).stop().animate({ "margin-left": "-100%" }, 500, 'linear', reset);
}
});
});

HTML

<div id="scroller">
  Lorem ipsum dolor sit amet. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum dolor sit amet. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum dolor sit amet. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum dolor sit amet. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum dolor sit amet. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
  Lorem ipsum dolor sit amet. &mdash; <a href="#">Username</a>&nbsp;&nbsp;&nbsp;
 </div>

谢谢,

格雷戈