var banner = new Array();

banner.push('https://i.servimg.com/u/f22/15/22/65/61/111.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/210.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/310.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/411.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/510.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/610.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/710.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/dieux_10.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/okami_16.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/orochi10.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/sakuya10.jpg');
banner.push('https://i.servimg.com/u/f22/15/22/65/61/shiran10.jpg');

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


https://i.servimg.com/u/f22/15/22/65/61/dieux_10.jpg