ajax动态效果

function FunAjax()
{
    $.ajax({
        type: "POST",
        url: "jQueryAjaxTest.ashx",  
        data: "begin=1&end=9",
        beforeSend: function(){
            $("#span_content").text("数据处理中...");
        },
        success: function(msg){
            $("#span_content").text("两个数的和为： " + msg);
        }
    });  
}

 http://www.cnblogs.com/bynet/archive/2010/06/09/1754984.html