var total_profiles = 4;
var now = new Date()
var sec = now.getSeconds()
var profile = sec % total_profiles;

profile +=1;
if (profile==1) {
	url="/career/events/expoannouncement.php";
	image="/career/images/fall07webpics/Expos/fallexpo07/careerexpofall2007011.jpg";
}


if (profile==2) {
	url="/career/events/expoannouncement.php";
	image="/career/images/fall07webpics/Expos/fallexpo07/expofall07002.jpg";
}

if (profile==3) {
	url="/career/events/expoannouncement.php";
	image="/career/images/fall07webpics/Expos/fallexpo07/expofall07057.jpg";
}


if (profile==4) {
	url="/career/events/expoannouncement.php";
	image="/career/images/fall07webpics/Expos/fallexpo07/careerexpofall2007017.jpg";
}

//the html code written inside the page
document.write('<a href=\"' + url + '"><img src=\"' + image +  '"\/><\/a>');