// JavaScript Document

var imgList_I = new Array();

for (i = 0; i < 30; i++)
{
	imgList_I[i] = '/Portals/0/images/Banners/banner_' + (i + 1) + '.jpg';
}
 
var imgIndex = Math.round(Math.random() * (imgList_I.length - 1));


function setImg()
{
 document.getElementById('set_banner').style.background = 'url('+ imgList_I[imgIndex] +')';
}

window.onload = setImg;