var doido = document;
var mac = (navigator.appVersion.indexOf("Mac") != -1) ? true : false;
var ie  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;

doido.write("<table width='780' align='center' border='0' cellpadding='0'  cellspacing='0'>");
doido.write("<tr>");
doido.write("<td width='100%'>");
doido.write("<iframe id='barraterra' src='http://www.terra.com.br/barra50.htm' width='780' height='50' align='center' MARGINWIDTH=0 MARGINHEIGHT=0 SCROLLING=NO FRAMEBORDER=0 HSPACE='0' VSPACE='0'></iframe>");
doido.write("</td>");
doido.write("</tr>");
doido.write("</table>");