var banner = new Array();

banner.push('https://img10.hostingpics.net/pics/958391site_logo1.png');
banner.push('https://img10.hostingpics.net/pics/571009site_logo2.png');
banner.push('https://img10.hostingpics.net/pics/954561site_logo3.png');
banner.push('https://img10.hostingpics.net/pics/666720site_logo4.png');
banner.push('https://img10.hostingpics.net/pics/643925site_logo5.png');
banner.push('https://img10.hostingpics.net/pics/967930site_logo6.png');
banner.push('https://img10.hostingpics.net/pics/740977site_logo7.png');
banner.push('https://img10.hostingpics.net/pics/845031site_logo8.png');
banner.push('https://img10.hostingpics.net/pics/845031site_logo8.png');
banner.push('https://img10.hostingpics.net/pics/961065site_logo10.png');
banner.push('https://img10.hostingpics.net/pics/943484site_logo11.png');
banner.push('https://img10.hostingpics.net/pics/650244site_logo12.png');
banner.push('https://img10.hostingpics.net/pics/698446site_logo13.png');
banner.push('https://img10.hostingpics.net/pics/654946site_logo14.png');
banner.push('https://img10.hostingpics.net/pics/620776site_logo15.png');
banner.push('https://img10.hostingpics.net/pics/933107site_logo16.png');
banner.push('https://img10.hostingpics.net/pics/994602site_logo17.png');
banner.push('https://img11.hostingpics.net/pics/617519site_logo18.png');
banner.push('https://img11.hostingpics.net/pics/776553site_logo19.png');
banner.push('https://img11.hostingpics.net/pics/776553site_logo19.png');
banner.push('https://img4.hostingpics.net/pics/316727sanstitre2cm.png');
banner.push('https://img4.hostingpics.net/pics/210529banireforum.png');
banner.push('https://img4.hostingpics.net/pics/659242raiserelliott.png');
banner.push('https://img4.hostingpics.net/pics/752095sacredcircle.png');
banner.push('https://img4.hostingpics.net/pics/351526Sanstitre3.png');

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