var time = new Date(); randnum = (time.getTime());

function doubleclick(site,keyword,ancho,alto){
  document.write ('<SCR'+'IPT language="JavaScript" SRC="http://ad.es.doubleclick.net/adj/'+site+'/;'+keyword+';sz='+ancho+'x'+alto+';ord=' + randnum + '?">');
  document.write ('document.write(\'<A HREF="http://ad.es.doubleclick.net/jump/'+site+'/;'+keyword+';abr=!ie4;abr=!ie5;abr=!nn2;abr=!nn3;abr=!nn4;sz='+ancho+'x'+alto+';ord=' + randnum + '?">\');');
  document.write ('document.write(\'<IMG SRC="http://ad.es.doubleclick.net/ad/'+site+'/;'+keyword+';abr=!ie4;abr=!ie5;abr=!nn2;abr=!nn3;abr=!nn4;sz='+ancho+'x'+alto+';ord=' + randnum + '?" border=0 width="'+ancho+'" height="'+alto+'"></A>\');</SCR'+'IPT>');
}