document.write('<span id="'+ban_name+'_cont"></span>')
var iframe = document.createElement('iframe');
iframe.id = ban_name;
iframe.name = ban_name;
iframe.src = 'http://www.x64.us/ad-' + ban_group + '.html';
iframe.scrolling = "no";
iframe.frameBorder = 0;
iframe.width = ban_width;
iframe.height = ban_height;
document.getElementById(ban_name+'_cont').appendChild(iframe);