var ads = new Array();
ads[0] = ['', 0, 0];
var index = Math.floor(Math.random()*ads.length);
var today = new Date();
var i = 0;
while(((ads[index][1] > 0 && ads[index][1] * 1000 > today) || ((ads[index][2] > 0 && ads[index][2] * 1000 < today))) && i < 30) {
index = Math.floor(Math.random()*ads.length);
i++;
}
document.write(ads[index][0]);