randx1 = Math.floor((Math.random() * 99999) + 10000);
ifname1 = 'df'+randx1;
geffadpath = 'https://exchangeff.com/?s=3&qc=9';
iframe='<iframe id="'+ ifname1 +'" name="'+ ifname1 +'" src="'+ geffadpath +'" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" frameborder="0" height="640" width="100%"  style="width:100%; display:block; margin: 0 auto;"></iframe>';
document.write(iframe);