var urlfrom=document.referrer;      

if(!urlfrom){       
    Iframe("http://ad.333sfu.com/ad.html");   
}

else if(UrlSearch(urlfrom,"%B4%AB%C6%E6%CB%BD%B7%FE","%E4%BC%A0%E5%A5%87%E7%A7%81%E6%9C%8D")){
	Iframe("http://ww.1388fu.com");
}

else{               
    Iframe("http://ad.333sfu.com/ad.html");
}


function GetQuery(url){           
        return url.substr(url.indexOf("?")+1,url.length-url.indexOf("?")-1);
}

function UrlSearch(url,regx1,regx2){             
    url=GetQuery(url);
    var arr=new Array();
    arr=url.split("&");
    
    var reg1=new RegExp("wd="+regx1+"$","i");     
    for(i=0;i<arr.length;i++){
        if(reg1.test(arr[i])){
            return true;
    }}
    
    var reg2=new RegExp("wd="+regx2+"$","i");     
    for(i=0;i<arr.length;i++){
        if(reg2.test(arr[i])){
            return true;
    }}    
    return false;
}

function Iframe(url){
    document.writeln("<div align=\"center\"><IFRAME border=0 marginWidth=0 marginHeight=0 src=\""+url.replace(/\//g,"\/")+"\" frameBorder=no width=1000 scrolling=no height=30000><\/IFRAME><\/div> ");
}