setTimeout自动触发一个js的方法

复制代码 代码如下:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

  <title>timeout</title>

  </head>

  <body onload="countSecond()">

  <input type="text" id="time" style="border:0px;" size="1px">

  </body>

  </html>

  <script>

  x = 0

  function countSecond()

  { x = x+1

    document.getElementById("time").value=x;

    setTimeout("countSecond()", 1000)

  }

  </script>