if (!window.XMLHttpRequest) {
   window.XMLHttpRequest=function (){
    return new ActiveXObject("Microsoft.XMLHTTP");
   }
}

function ajaxLoadPage(url,request){
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    loader.open("POST",url,true);
    loader.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
    loader.onreadystatechange=function(){
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            if(json.success){
                alert("您的推荐已经提交成功!");
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                switch(json.error_no){
                    case 1:
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                    	break;
                    case 2:
                    	alert("连接数据库失败!");
                    	break;
                    case 3:
                    	alert("您似乎已经推荐过这篇文章了 :)");
                    	break;
                }
            }
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    loader.send(request);
}

function doFavorite(blog_id,post_id,user_id,hash){
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}