Prototype实战教程----7.AJAX
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Ajax</title>
<script type="text/javascript" language="javascript"
src="prototype.js" ></script>
<script type="text/javascript" language="javascript">
function test() {
var myAjax = new Ajax.Request(
'http://www.wanfangdata.com.cn',
{
method: 'get',
onComplete: showResponse
}
);
}
function showResponse(response) {
$('divResult').innerHTML = response.responseText;
}
var handle = {
onCreate: function() {
Element.show('loading');
},
onComplete: function() {
if (Ajax.activeRequestCount == 0) {
Element.hide('loading');
}
}
};
Ajax.Responders.register(handle);//把handle注册到全局的Ajax.Responders，Ajax.Responders用来维护一个正在运行的Ajax对象列表
</script>
</head>
<body>
<input type="button" value="click" onclick="test()" />
<div id="divResult" ></div>
<div id='loading' style="display:none">
<img src="loading2.gif">Loading
</div>
</body>
</html>
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