function chklogin() {
 loong.ajax({
   type: "GET",
   url: "/ajaxs.php",
   data: "action=chklog&tm="+Math.random(),
   success: "userlog",   
  failure:function(){alert("操作失败!");}
 });
 //return false;
}

function bbs_postlist2(tid) {
 loong.ajax({
   type: "GET",
   url: "http://www.ajwang.com/special/bbs.php",
   data: "action=post&tid="+ tid +"&tm="+Math.random(),
   success: "bpostlist",   
  failure:function(){alert("操作失败!");}
 });
 //return false;
}
  var atop;
 var ahei;	 
var loong = {
  alert: function(alertjson) {
	  atop=document.documentElement.scrollTop+250;
	  ahei=alertjson.alertheight-50;
	alerttemp='<div id="masklayer" style="position:absolute;top:0px;left:0px;background:white;opacity:0.4;filter:alpha(opacity=40);"></div><div id="loongalert" style="position:absolute;top:'+ atop +'px;left:50%;width:'+ alertjson.alertwidth +'px;height:'+ alertjson.alertheight +'px;margin:-150px 0 0 -200px;background:#fff;border:2px solid #5d7cb1;border-top:none;font-size:14px;"><div id="alerttitle" style="height:25px;line-height:25px;text-indent:5%;width:100%;font-weight:bold;color:#ffffff;background:#5d7cb1;">'+alertjson.alerttitle+' <input type="image" id="BoxCloseBtn" style="position:absolute;top:4px;right:5px;border:none;width:16px;height:16px;padding:0;" src="http://ajwang.com/pub/img/close.gif" title="关闭" onclick="loong.alertclose();" /></div><div id="alertstr" style="height:'+ ahei +'px;"><iframe  frameborder="0" scrolling="no" height="100%" width="100%" name="pop" id="pop"></iframe></div></div>';
	document.body.innerHTML+=alerttemp;
	var mask=document.getElementById("masklayer");
	mask.style.width=document.documentElement.scrollWidth+"px";
	mask.style.height=Math.max(document.documentElement.scrollHeight,document.documentElement.clientHeight)+"px";
    document.getElementById("pop").src=alertjson.alertstr;
  },
  removeElement: function(element) {
	var gelement=document.getElementById(element);
	try {if (gelement) {gelement.parentNode.removeChild(gelement);}}
	catch (e) {}
  },
  alertclose: function(){
	loong.removeElement('masklayer');
	loong.removeElement('loongalert');
  },
 inintajax: function(){
	var XMLHttp=null;
	try
	{
		XMLHttp=new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch(e) 
	{
		try
		{
			XMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(e)
		{
			XMLHttp=new XMLHttpRequest();	
		}
	}

	return XMLHttp;
 

 },
 ajax: function(_s){
 /*

  url: location.href,
  global: true,
  type: "GET",
  timeout: 0,
 
 */
 _s.url += (_s.url.match(/\?/) ? "" : "?")+_s.data;
//alert(_s.url);
//  alert(typeof(_s.success));
	_xmlhttp = loong.inintajax();
	//var url = _s.url;
	if(_xmlhttp)    
    {
        _xmlhttp.open(_s.type,_s.url,true);
        _xmlhttp.onreadystatechange=function()
        {
            if(_xmlhttp.readyState == 4)        
            {
                if(_xmlhttp.status == 200)      
                {
                    var ResponseText = unescape(_xmlhttp.responseText);
if(typeof(_s.success) == "function"){
_s.success(ResponseText);
}else{
		var dig = document.getElementById(_s.success);
		dig.innerHTML=ResponseText;
}
                }
                else    
                {
					if(_s.failure!=undefined){_s.failure();}
                }
            }
/*            else    
            {
                dig.innerHTML='<img src="http://jianli.zhaopin.qianlong.com/2009aidao/images/loading.gif">';
            }*/
        }
        _xmlhttp.send(null);  
    }
    else    
    {
        alert("您的浏览器不支持或未启用 XMLHttp!");
    }
}
};