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<script language="javascript" src="http://www.prototypejs.org/assets/2008/1/25/prototype-1.6.0.2.js"></script>
<script type="text/javascript" language="javascript">
function test() {
var myAjax = new Ajax.Request(
'http://www.taobao.com',
{
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);
</script>
<input type="button" value="click" onclick="test()" />
<div id="divResult" ></div>
<div id='loading' style="display:none">
<img src="loading.gif">Loading...
</div>