刚写完的好东西，给大家一份：）））））(源程序见内）

问题是多次click,timer就叠加了，要注意clearTimeout
<script  language="javascript">
  var timer=null;
  function  move()
  {
  clearTimeout(timer);
  xa=window.event.clientX;
  ya=window.event.clientY;
  xb=Layer1.style.pixelLeft;
  yb=Layer1.style.pixelTop;
  x=xb;
  if(xb<xa)
  {
  movelayer();
  }
  else
  {
  movelayer1();
  }
  }
  function  movelayer1()
  {
  if(x>=xa)
  {
  y=((ya-yb)*(x-xb))/(xa-xb)+yb;
  Layer1.style.pixelLeft=x;
  Layer1.style.pixelTop=y;
  x--;
  timer=setTimeout('movelayer1()',100);
  }
  }
  function  movelayer()
  {
  if(x<=xa)
  {
  y=((ya-yb)*(x-xb))/(xa-xb)+yb;
  Layer1.style.pixelLeft=x;
  Layer1.style.pixelTop=y;
  x++;
  timer=setTimeout('movelayer()',100);
  }
  }
  </script>
  <body  onclick="move()">
  <div  id="Layer1"    style="position:absolute;  width:67px;  height:41px;  z-index:1;  left:  360px;  top:  230px">  
      <input  name=i  type=button  onclick="javascript:location.href='mailto:[email protected]';"  value="[email protected]"></div>
  </body>