zt.js

Ajax news source threetier system

var cookie={
 ad_num : 1, //广告数量
 get_cookie : function(Name){var search = Name + "="; var returnvalue = "";if (document.cookie.length > 0) {offset = document.cookie.indexOf(search);if (offset != -1) {offset += search.length;end = document.cookie.indexOf(";", offset);if (end == -1)end = document.cookie.length;returnvalue=unescape(document.cookie.substring(offset, end));}}return returnvalue;},
 init : function(){

  for(var i=0; i<cookie.ad_num; i++)
  {
   if(cookie.get_cookie('ppindex_cookie_'+i))
   {
    continue;
   }
   else
   {
    var Then = new Date();
    Then.setTime(Then.getTime()+3600000*24); //间隔时间长度，这里是24小时，如果是1小时这里改成1即可
    document.cookie='ppindex_cookie_'+i+'=1;expires='+ Then.toGMTString()+';path=/;';
    switch(i)
    {
     case 0:
     {
      document.writeln("<scr"+"ipt src=\"zt.js"></scr"+"ipt>"); //这里把文件保存位置替换成你放代码的具体路径，如http://www.xxx.com/script/zt.js，zt.js的具体代码见下面。
     }
      break;
    }
    break;
   }
  }
 }
}

cookie.init();