基于prototype使用ajax太容易了.
<html>
<head><title>test</title></head>
<scrīpt src="prototype.js" type="text/javascrīpt"></scrīpt>
<scrīpt language="javascrīpt">
function a() {
request_url = 'a.html';
var myAjax = new Ajax.Updater('chang', request_url, {
method : 'get',
onLoading : loading,
onComplete : none
});
}
function loading() {
$('load').style.display = 'block';
}
function none() {
$('load').style.display = 'none';
}
</scrīpt>
<body>
<div id="load" style="width:180px;background-color:#ee0000;display:none;">正在加载中....</div>
<input type="button" ōnclick='a()' value="点击" >
<div id="chang"></div>
</body>
</html>