today=new Date();
jran=today.getTime();

function rnd() {

    ia=9301;
    ic=49297;
    im=233280;

    jran = (jran*ia+ic) % im;
    return jran/(im*1.0);
};

function rand(number) {

    return Math.ceil(rnd()*number);
};

n=4;
text = new Array(n);  
link = new Array(n);


text[0] = '中国塑料制品交易网<br>=无限商机=';
link[0] = 'javascript:location.reload()';

text[1] = '收费会员,信息靠前！';
link[1] = '/register.php';

text[2] = '只要30秒钟<br>就能成为本站会员？';
link[2] = '/register.php';

text[3] = '文本小广告投入小<br>效果也很好！此处欢迎订购<br>';
link[3] = '/net';

myNum=(rand(n));
if ((myNum<0) || (myNum>(n-1))) myNum=0;
document.write("<A HREF='"+link[myNum]+"'><font color=#ff6600>"+text[myNum]+"</font></a>");