Código PHP:
<?
$numimages = 5;
$random = rand(1, $numimages);
$img = array();
$url = array();
$txt = array();
$img[1] = "lunes.png";
$url[1] = "#";
$txt[1] = "Muestra el horario";
$img[2] = "martes.png";
$url[2] = "#";
$txt[2] = "Muestra el horario";
$img[3] = "miercoles.png";
$url[3] = "#";
$txt[3] = "Muestra el horario";
$img[4] = "jueves.png";
$url[4] = "#";
$txt[4] = "Muestra el horario";
$img[5] = "viernes.png";
$url[5] = "#";
$txt[5] = "Muestra el horario";
echo "<a href='$url[$random]'><img src='$img[$random]' alt='$txt[$random]' border='0'></a>";
?>
me sirve este o debo usar otro?