Nefunguje externí JS

<script type="text/javascript">
var banners = <?php $vysledek = mysql_query("SELECT * FROM `banner` WHERE `aktivni` != 0 ORDER BY `poradi` DESC"); $banners = array(); while ($zaznam = mysql_fetch_assoc($vysledek)) {$banners[] = $zaznam;} echo json_encode($banners); ?>

var currentAd = 0;
function cycle() {
    var link = document.getElementById('adLink');
    link.href = banners[currentAd].url;
    link.target = banners[currentAd].target;
    link.title = banners[currentAd].title;
    var banner = link.getElementsByTagName('img')[0];
    banner.src = "/img/banner/" + banners[currentAd].obr;
    banner.title = banners[currentAd].title;
    banner.alt = banners[currentAd].title;
    currentAd = (currentAd + 1) % banners.length;
}
window.setInterval(cycle, <?php $vysledek = mysql_query("SELECT `cas` FROM `banner_cas` WHERE `id`=1"); while ($zaznam = mysql_fetch_assoc($vysledek)) {settype ($zaznam["cas"], integer); echo $zaznam["cas"]*1000;} ?>);
</script>
<?php $vysledek = mysql_query("SELECT * FROM `banner` WHERE `aktivni` != 0 ORDER BY `poradi` ASC LIMIT 1"); while ($zaznam = mysql_fetch_assoc($vysledek)): echo "<a id='adLink' href='".$zaznam["url"]."' target='".$zaznam["target"]."' title='".$zaznam["title"]."'><img src='/img/banner/".$zaznam["obr"]."' alt='".$zaznam["title"]."' title='".$zaznam["title"]."'></a>"; endwhile; ?>