var global_html_pool = [];
var global_script_pool = [];
var global_script_src_pool = [];
var global_lock_pool = [];
var innerhtml_lock = null;
var document_buffer = "";

function set_innerHTML(obj_id, html, time) {
    if (innerhtml_lock == null) {
        innerhtml_lock = obj_id;
    }
    else if (typeof(time) == "undefined") {
        global_lock_pool[obj_id + "_html"] = html;
        window.setTimeout("set_innerHTML('" + obj_id + "', global_lock_pool['" + obj_id + "_html']);", 10);
        return;
    }
    else if (innerhtml_lock != obj_id) {
        global_lock_pool[obj_id + "_html"] = html;
        window.setTimeout("set_innerHTML('" + obj_id + "', global_lock_pool['" + obj_id + "_html'], " + time + ");", 10);
        return;
    }

    function get_script_id() {
        return "script_" + (new Date()).getTime().toString(36)
          + Math.floor(Math.random() * 100000000).toString(36);
    }

    document_buffer = "";

    document.write = function (str) {
        document_buffer += str;
    }
    document.writeln = function (str) {
        document_buffer += str + "\n";
    }

    global_html_pool = [];

    var scripts = [];
    html = html.split(/<\/script>/i);
    for (var i = 0; i < html.length; i++) {
        global_html_pool[i] = html[i].replace(/<script[\s\S]*$/ig, "");
        scripts[i] = {text: '', src: '' };
        scripts[i].text = html[i].substr(global_html_pool[i].length);
        scripts[i].src = scripts[i].text.substr(0, scripts[i].text.indexOf('>') + 1);
        scripts[i].src = scripts[i].src.match(/src\s*=\s*(\"([^\"]*)\"|\'([^\']*)\'|([^\s]*)[\s>])/i);
        if (scripts[i].src) {
            if (scripts[i].src[2]) {
                scripts[i].src = scripts[i].src[2];
            }
            else if (scripts[i].src[3]) {
                scripts[i].src = scripts[i].src[3];
            }
            else if (scripts[i].src[4]) {
                scripts[i].src = scripts[i].src[4];
            }
            else {
                scripts[i].src = "";
            }
            scripts[i].text = "";
        }
        else {
            scripts[i].src = "";
            scripts[i].text = scripts[i].text.substr(scripts[i].text.indexOf('>') + 1);
            scripts[i].text = scripts[i].text.replace(/^\s*<\!--\s*/g, "");
        }
    }

    var s;
    if (typeof(time) == "undefined") {
        s = 0;
    }
    else {
        s = time;
    }

    var script, add_script, remove_script;

    for (var i = 0; i < scripts.length; i++) {
        var add_html = "document_buffer += global_html_pool[" + i + "];\n";
        add_html += "document.getElementById('" + obj_id + "').innerHTML = document_buffer;\n";
        script = document.createElement("script");
        if (scripts[i].src) {
            script.src = scripts[i].src;
            if (typeof(global_script_src_pool[script.src]) == "undefined") {
                global_script_src_pool[script.src] = true;
                s += 2000;
            }
            else {
                s += 10;
            }
        }
        else {
            script.text = scripts[i].text;
            s += 10;
        }
        script.defer = true;
        script.type =  "text/javascript";
        script.id = get_script_id();
        global_script_pool[script.id] = script;
        add_script = add_html;
        add_script += "document.getElementsByTagName('head').item(0)";
        add_script += ".appendChild(global_script_pool['" + script.id + "']);\n";
        window.setTimeout(add_script, s);
        remove_script = "document.getElementsByTagName('head').item(0)";
        remove_script += ".removeChild(document.getElementById('" + script.id + "'));\n";
        remove_script += "delete global_script_pool['" + script.id + "'];\n";
        window.setTimeout(remove_script, s + 10000);
    }

    var end_script = "if (document_buffer.match(/<\\/script>/i)) {\n";
    end_script += "set_innerHTML('" + obj_id + "', document_buffer, " + s + ");\n";
    end_script += "}\n";
    end_script += "else {\n";
    end_script += "document.getElementById('" + obj_id + "').innerHTML = document_buffer;\n";
    end_script += "innerhtml_lock = null;\n";
    end_script += "}";
    window.setTimeout(end_script, s);
}

function $(oid){
	return (typeof oid == "object")?oid:document.getElementById(oid);
}

function createAJAX() //创建ajax对象
{
	var xmlhttp;
	try{xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");}
	catch (e1)
	{
		try{xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");	}
		catch (e2){xmlhttp = null;}
	}
	if (!xmlhttp)
	{
		if (typeof XMLHttpRequest != "undefined"){xmlhttp = new XMLHttpRequest();}
		else return false;
	}
	return xmlhttp;
}

//显示文章统计
function do_showartcount(ids){	//显示统计信息
	var url = "/include/show_count.php";
	var ajax = createAJAX();
	ajax.open("GET",url+"?ids="+ids,true);
	ajax.onreadystatechange = function (){
		if(ajax.readyState == 4 && ajax.status == 200 && ajax.responseText != ""){
			var s = ajax.responseText;
			//alert("ajax response: "+s);
			var arr = s.split(")");	
			var d,arr2,o;
			for(i = 0; i < arr.length; i++)	{
				d = arr[i];		//单条广告信息
				if (d == "") continue;
				arr2 = d.split("|");
				o = 'views_'+arr2[0];
				if (!o) continue;				
				if (arr2[0]) set_innerHTML(o, arr2[1], 10);
			}
		}
	}
	ajax.send(null);
}

function showartcount(){		//显示当前页文章统计
	var arr = document.getElementsByTagName("span");
	var ids = "";
	for(var i=0;i<arr.length;i++)
	{
		var cc = arr[i].id;
		if (!cc || cc.indexOf("views_") == -1) continue;
		cc = cc.replace("views_","");
		//type 0阅读1评论,artid
		ids += cc + "|";
	}
	do_showartcount(ids);
}

//统计文章点击
function artcounter(ids){
	var url = "/include/art_counter.php";
	var ajax = createAJAX();
	ajax.open("GET",url+"?ids="+ids,true);
	ajax.onreadystatechange = function (){
		if(ajax.readyState == 4 && ajax.status == 200 && ajax.responseText != ""){
			//alert("ajax response: "+ajax.responseText);			
		}
	}
	ajax.send(null);
}

//显示广告内容
function do_showadv(ids){	//显示统计信息
	var url = "/include/show_adv.php";
	var ajax = createAJAX();
	ajax.open("GET",url+"?ids="+ids,true);
	ajax.onreadystatechange = function (){
		if(ajax.readyState == 4 && ajax.status == 200 && ajax.responseText != ""){
			var s = ajax.responseText;
			//alert("ajax response: "+s);
			var arr = s.split(")");	
			var d,arr2,o;
			for(i = 0; i < arr.length; i++)	{
				d = arr[i];		//单条广告信息
				if (d == "") continue;
				arr2 = d.split("|");
				o = 'adv_'+arr2[1];
				if (!o) continue;				
				if (arr2[0]) set_innerHTML(o, arr2[0], 20);
			}
		}
	}
	ajax.send(null);
}

function showadv(){		//显示当前页广告
	var arr = document.getElementsByTagName("div");
	var ids = "";
	for(var i=0;i<arr.length;i++)
	{
		var cc = arr[i].id;
		if (!cc || cc.indexOf("adv_") == -1) continue;
		cc = cc.replace("adv_","");
		ids += cc + "|";
	}
	do_showadv(ids);
}