function getAJAX()
{
	var r = false;
    try {r = new XMLHttpRequest();} 
	catch (trymicrosoft) 
	{
		try {r = new ActiveXObject("Msxml2.XMLHTTP");} 
		catch (othermicrosoft) 
		{
			try {r = new ActiveXObject("Microsoft.XMLHTTP");}
			catch (failed) {r = false;}  
		}
    }

   if (!r){alert("无法启用AJAX，请更新你的浏览器版本!");return false;}
   else{return r;} 
}

function getResponse(r,f) //f:是否非要出现"success"
{
	if (r.readyState == 4)
	{
		if(r.status == 200)
		{
		  var p = r.responseText.split("|");
		  var s=p[0].toLowerCase();  //[0]=状态
		  if(s=="error"){try{endWaiting();}catch(e){}alert("出错啦!错误信息："+p[1]);return false;}  //[1]=错误信息
		  if(s=="success"){return true;}
		  if(!f){return true;}
		  else{try{endWaiting();}catch(e){}alert("处理失败！");}
		}
		else
		{try{endWaiting();}catch(e){}alert("访问出错，代码：" + r.status);}
	}
	return false;
}