var http_request = false;
	function send_request(url) {//初始化、指定处理函数、发送请求的函数
		if(window.XMLHttpRequest) { //Mozilla 浏览器
			http_request = new XMLHttpRequest();
		}
		else if (window.ActiveXObject) {//IE浏览器
			http_request = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}

	function processRequest() {
        if (http_request.readyState == 4) { //判断状态完成
            if (http_request.status == 200) { //200=ok,404=NotFound
				document.getElementById('ajpost_'+a).innerHTML = http_request.responseText;	
				document.getElementById('ajpost_'+a).style.display = 'block';
				document.getElementById('ajtipup_'+a).innerHTML = '<a class=tipup onclick=ajclose('+a+')><img src=images/common/threadlistup.gif /></a>';
				document.getElementById('ajtipup_'+a).style.display = 'block';
				document.getElementById('ajtip_'+a).innerHTML = '<a class=tip onclick=ajclose('+a+')><img src=images/common/threadlistup.gif /></a>';
            }	
        }
    }

	function ajclose(a){
		var i = a;
		document.getElementById('ajpost_'+a).style.display = 'none';
		document.getElementById('ajtipup_'+a).style.display = 'none';
		document.getElementById('ajtip_'+a).innerHTML = '<a class=tip onclick=show('+a+',1)><img src=images/common/threadlist.gif /></a>';
	}
	
	function show(i,pg) {
		a = i;
		var pg = pg;
		document.getElementById('ajpost_'+a).innerHTML = '<label></label>';
		url = 'viewthreadmini.php?tid='+a+'&page='+pg;
		send_request(url);
		http_request.onreadystatechange = processRequest;
		http_request.open("GET", url, true);
		http_request.send(null);
	}