var banner = new Array();

banner[0]='https://i.servimg.com/u/f48/16/68/06/83/banner11.png';
banner[1]='https://i.servimg.com/u/f48/16/68/06/83/px1010.jpg';
banner[2]='https://i.servimg.com/u/f48/16/68/06/83/ucl10.jpg';
banner[3]='https://i.servimg.com/u/f48/16/68/06/83/aka10.jpg';
banner[4]='https://i.servimg.com/u/f48/16/68/06/83/ffffff10.jpg';
banner[5]='https://i.servimg.com/u/f48/16/68/06/83/ilogo210.png';
banner[6]='https://i.servimg.com/u/f48/16/68/06/83/doe10.jpg';
banner[7]='https://i.servimg.com/u/f48/16/68/06/83/346kpc10.jpg';
banner[8]='https://i.servimg.com/u/f48/16/68/06/83/svym10.jpg';
banner[9]='https://i.servimg.com/u/f48/16/68/06/83/gx10.jpg';


document.getElementById('logo').firstChild.src= banner[Math.floor(Math.random()*banner.length)];