var banner = new Array(); banner[0]='https://img15.hostingpics.net/pics/5187795455.png'; banner[1]='https://img15.hostingpics.net/pics/5187795455.png'; banner[2]='https://img15.hostingpics.net/pics/.png'; document.getElementById('i_logo').src= banner[Math.floor(Math.random()*banner.length)];