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Based on the script advertising implementation code in innerHTML [all ads are placed in one js] [original]_advertising code

WBOYOriginal: 2016-05-16 18:46:051428browse

如果不清楚innerHtml的脚本如何运行的可以参考这篇文章
http://www.jb51.net/article/234.htm
下面的代码目的就是防止有些网站需要将一些特别的广告放到script中，大家可以完全用iframe替换，联盟广告大家可以用后加载的方式，特别处理。
推荐的代码的写法：

复制代码代码如下:

if(PageClass==2)
{
     //顶部通栏 468*60用iframe方式加载
     set_innerHTML('Head_2_2',All_Top_468_60);
     //顶部468*60
     set_innerHTML('Head_5',All_Top_970_60);
     Temp_Adv='';
     set_innerHTML('List_1_1_4',Temp_Adv);

//下载右边文字直接地址+图片推荐
Temp_Adv='| 脚本之家 ';
    document.getElementById("Soft_1_2_4_h2").innerHTML+=Temp_Adv;
    // set_innerHTML('Soft_1_2_2_1_2',Temp_Adv);
}

<div id="jb51"></div> 
<div> 
<div id="ss">上面的是4668*60</div> 
</div> 
<div id="jb512"></div> 
上面的是4668*602 因为直接用的是inner所有不显示。

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 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); 
}

// JavaScript Document 
if( PageClass ==null) 
{ 
var PageClass = 0; 
} 
// ==============公共变量===================== 
var delta=0.15; 
//==================函数列表========================= 
function PostCookie(cookieName) 
{ 
var expdate = new Date(); 
expdate.setTime(expdate.getTime() + 604800000); 
document.cookie=cookieName+";expires="+expdate.toGMTString()+";path = /;domain=.jb51.net"; 
} 
//用于产生随机轮转广告 i 随机个数 
function GetRandom(i) 
{ 
var dt = new Date(); 
var hr = dt.getSeconds(); 
hr = hr%i; 
return hr; 
} 
//读取Cookies值 
function getCookie(cookieName) 
{ 
var cookieString =document.cookie; 
var start = cookieString.indexOf(cookieName + '='); 
// 加上等号的原因是避免在某些 Cookie 的值里有 
// 与 cookieName 一样的字符串。 
if (start == -1) // 找不到 
return null; 
start += cookieName.length + 1; 
var end = cookieString.indexOf(';', start); 
if (end == -1) 
return unescape(cookieString.substring(start)); 
return unescape(cookieString.substring(start, end)); 
}

//下载指定的文件 
function PosDownload(url) 
{ 
top.location.href =url; 
return true; 
}

//复制标题和网址 
function copypageurltitle() 
{ 
var clipBoardContent=''; 
clipBoardContent =document.title; 
clipBoardContent+='\r\n'; 
clipBoardContent+=document.location; 
window.clipboardData.setData("Text",clipBoardContent); 
alert("标题和网址已经拷贝，请发给你QQ/Msn或者可以粘贴到论坛上和您的好友一起分享 ^_^ "); 
}

var IsShowAds = true; //是否显示广告 
if(getCookie("IsShowAds")=="False") IsShowAds=false; 
//=========================================================================================

if(PageClass==1) 
{ 
PostCookie("IsShowAds=False"); 
//上面的 cookies主要是为了控制，广告显示以后，刷新后或打开别的页面 广告就不显示。 
//顶部通栏 468*60 
Temp_Adv="<scri"+"pt src='http://img.jb51.net/imgby/logo_m.js'>"+"pt>"; 
set_innerHTML('jb51',Temp_Adv); 
Temp_Adv2="<scri"+"pt src='http://img.jb51.net/imgby/logo_r.js'>"+"pt>"; 
set_innerHTML('jb512',Temp_Adv2); 
//在jb51上面加一个广告1 
Temp_Adv3= "<a href='http://www.jb51.net/' target='_blank' title='这是广告'> <img src='http://www.jb51.net/images/logo.gif' border='0' alt='这是广告'> "; 
document.getElementById("jb51").innerHTML +=Temp_Adv3; 
//在jb51上面加一个广告2 
var aNode =document.createElement("div"); 
aNode.style.marginBottom =2; 
aNode.innerHTML = "<a href='http://www.jb51.net/' target='_blank' title='这是广告'> <img src='http://www.jb51.net/images/logo.gif' border='0' alt='这是广告'> "; 
var Prean=document.getElementById("ss"); 
Prean.parentNode.insertBefore(aNode,Prean); 
} 
</script>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

经测试发现，如果想在有运行script的上面加广告是不可能的因为这些脚本是后执行的，所有脚本广告可以直接在脚本中写入，不要随便的后加入了。

但如果是其它的广告是可以前面加入广告的，一些网站都是直接通过script控制全站的广告，虽然脚本之家暂时没有使用这种方法，不过在以后我们也会参考这个方法。

最主要的是广告，大家可以尽量的避免使用script,尽量的使用iframe或直接代码，图片链接等方法是非常不错的。

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