定时存取文本文件需要调用一个ActiveXObject:
<script language="javascript">
function getData(){
var oXML = new ActiveXObject("MSXML2.XMLHTTP");
oXML.open("GET","2.txt",false);
oXML.send();
div1.innerHTML=oXML.responseText;
}

setTimeout("getData()",1000);
</script>
<div id="div1"></div>