[Aetae]

var img_src = 'url("' + path + getRandomInt(first,last) + '.jpg")';
var div = document.getElementById("u_vip");
div.style.backgroundImage=img_src;
-->
var description = {
  1: 'foo',
  2: 'bar'
}
var number = getRandomInt(first,last);
var img_src = 'url("' + path + number + '.jpg")';
var img_description = description[number];
var div = document.getElementById("u_vip");
div.innerHTML=img_description; 
div.style.backgroundImage=img_src;