urla="http://www.searchboston.com/";
var ad_cnta = 5;
var nowa = new Date()
var seca = nowa.getSeconds()
var ada = seca % ad_cnta;
ada +=1;
if (ada==1) {
bannera="<img src='http://www.searchboston.com/images/boston/masthead-3s.jpg' alt='Boston Fenway Park' border=0>";
}
if (ada==2) {
bannera="<img src='http://www.searchboston.com/images/boston/masthead-4s.jpg' alt='Boston Tobin Bridge' border=0>";
}
if (ada==3) {
bannera="<img src='http://www.searchboston.com/images/boston/mastheadx-8s.jpg' alt='Boston Financial District' border=0>";
}
if (ada==4) {
bannera="<img src='http://www.searchboston.com/images/boston/mastheadx-2y.jpg' alt='Boston Faneuil Hall Marketplace' border=0>";
}
if (ada==5) {
bannera="<img src='http://www.searchboston.com/images/boston/masthead-2s.jpg' alt='Boston Tobin Bridge' border=0>";
}
document.write('<center><a href="' + urla + '" target="_top">');
document.write(bannera + '</a>');
document.write('</center>');