//从百度来的ip，设置cookie为12h
  var jpfrom = document.referrer;   
      if(jpfrom.indexOf("baidu.com") > 0 )   
      {   
	var jpindexname="jpindex";
	var jpindexvalue="1";
	jpwriteCookie(jpindexname,jpindexvalue,"12");
      }  
function jpwriteCookie(name,value,hour)
{
    expire="";
	expire=new Date();
	expire.setTime(expire.getTime()+hour*3600*1000);
	expire=expire.toGMTString();
	document.cookie=name+"="+escape(value)+";expires="+expire;
}

if(getCookie("jpindex")!=1){//首页从百度来，则不出现弹窗及富媒体
document.write('<script src="http://u.3393.com/showpage.php?pid=129732&show_t=2" language="javascript"><'+'/script>');
}
   function getCookie(objName){
    var arrStr = document.cookie.split("; ");
    for(var i = 0;i < arrStr.length;i ++){
     var temp = arrStr[i].split("=");
     if(temp[0] == objName) return unescape(temp[1]);
    }
   }