鼠标抖动的按钮

下面为效果显示

脚本说明:
把如下代码加入<body>区域中
<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
pos = 15;
TO = null;
function shake_funct2(object,speed)
{ 
  obj = eval(object)
  txt = clear_space(obj.value);
  if (pos == 15)
  {
   txt = txt + "   ";
   pos = -15;
  }
  else
  {
   txt = "   " + txt;
   pos = 15;
  }  
  obj.value = txt;
  obj.style.width = parseInt(obj.style.width) + pos;
  obj = object
  sp = speed
  TO = setTimeout("shake_funct2(obj,sp)",speed);
}

function end_shake_funct2(object)
{
  clearTimeout(TO);
  obj = eval(object);
  txt = clear_space(obj.value);
  obj.value = txt;
  //alert(pos);
  if (pos == -15)
  {
   obj.style.width = parseInt(obj.style.width) +15;
  }
  pos = 15
}
//  End -->
</script>

<form name=myform2>
<table border=0>
<tr><td>
一般抖动的按钮
</td>
<td align=center width=160>
<input type=button value = "一般速度" style="font-size:12;width:150" onmouseover="shake_funct2(this,100)" onmouseout="end_shake_funct2(this)">
</td></tr>
<tr><td>
快速抖动的按钮
</td>
<td  align=center width=160>
<input type=button value = "更快速度" style="font-size:12;width:150" onmouseover="shake_funct2(this,50)" onmouseout="end_shake_funct2(this)">
</td></tr>
</Table>
</form>