e = 2 // a=numbers of banners
var slump = Math.random();
var talet = Math.round(slump * (e-1))+1;
function create() {

this.src = ''
this.href = ''
this.alt = ''
this.under = ''
}

f = new Array()
for(var i=1; i<=e; i++) { f[i] = new create() }

f[1].src = "Images/ad_p5.gif"
f[1].href = "http://shop.lenovo.com.cn/channel_home/"
f[1].alt = ""

f[2].src = "Images/ad_p5.gif"
f[2].href = "http://shop.lenovo.com.cn/channel_home/"
f[2].alt = ""