document.write(
  '<ifr' + 'ame' +
  ' src=/ads/' + ads2 +
  ' width=306' +
  ' height=133' +
  ' frameborder=0' +
  ' hspace=0' +
  ' vspace=0' +
  ' scrolling=no' +
  ' marginwidth=0' +
  ' marginheight=0' +
  ' allowtransparency=true' +
  ' name=iframe0></ifr' + 'ame>'
);