<!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=utf-8" />
<title>AJAX TEST</title>
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript">
$(function(){
$(\'#button\').click(function(){
$.ajax({
url:\'demo.php\',
type: "POST",
data: ({name:\'wang\',location:\'AJAX\'}),
beforeSend:Request,
success:Response,
});
});
});
function Request(){
$(\'#loading_img\').html(\'<img src="ajax-loader.gif" width="35" height="35" />\');
}
function Response(data){
$(\'#loading_img\').html(data);
}
</script>
</head>
<body>
<div id="loading_img"></div>
<input type="button" name="demo" id="button" value="TEST"/>
</body>
</html>