var banner = new Array();
 
banner.push('http://image.noelshack.com/fichiers/2012/48/1354310855-spiderman.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354310861-ironman.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354312186-ghost-rider.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354400630-jane.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354401398-bladebana.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354402324-magnetobana.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354403401-furybana.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354403838-lokibana.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354404402-deadpollbana.png');
banner.push('http://image.noelshack.com/fichiers/2012/48/1354405083-wolvebana.png');
banner.push('http://image.noelshack.com/fichiers/2012/49/1354711394-4fantabana.png')
 
document.getElementById('i_logo').src= banner[Math.floor(Math.random()*banner.length)];