Problema intervallo spot overlay

[DDL2006]

Salve ho inserito dei banner in overlay sul mio sito ma pur cambiando la frequenza di intervallo le pubblicità saltano fuori solo una volta posto il codice per farvi intendere meglio

Prima Parte:

<script type=text/javascript>  var player = null; function playerReady(thePlayer) { player = window.document[thePlayer.id];   } setOverlayHTML(); setInterval( "setFooterHTML()", 15000 ); cdInterval=null; function setBannerHTML(banner_html) { document.getElementById("banner_container").innerHTML = banner_html; } function removeBannerHTML() { document.getElementById("banner_container").innerHTML = ""; } function thisMovie(movieName) { if (navigator.appName.indexOf("Microsoft") != -1) { return window[movieName]; } else { return document.getElementById(movieName); } } function removeOverlayHTML() { document.getElementById("ad_overlay_content").innerHTML = ""; document.getElementById("ad_overlay").style.display="none"; cdInterval=0;   document.getElementById("countdownnum").innerHTML=0; player.sendEvent("PLAY", true);   }   function setOverlayHTML() {   removeFooterHTML(); document.getElementById("ad_overlay_content").innerHTML = "<iframe frameborder='0' marginheight='0' marginwidth='0' scrolling='no' src='http://italiaarotoli.altervista.org/tv/banner1.htm' height='250'></iframe>"; document.getElementById("countdownnum").innerHTML="60"; cdInterval=setInterval("countDown()",1000); document.getElementById("ad_overlay").style.display=""; }   function setFooterHTML() {   document.getElementById("ad_footer_content").innerHTML = "<iframe frameborder='0' marginheight='0' marginwidth='0' scrolling='no' src='http://italiaarotoli.altervista.org/tv/banner2.htm' width='468' height='60' ></iframe>"; document.getElementById("ad_footer").style.display=""; } function removeFooterHTML() { document.getElementById("ad_footer_content").innerHTML = ""; document.getElementById("ad_footer").style.display="none"; } function countDown() { currentCD=parseInt(document.getElementById("countdownnum").innerHTML); if (currentCD==1) removeOverlayHTML(); else  document.getElementById("countdownnum").innerHTML=(currentCD-1); }   </script> 

Seconda Parte

<script type=text/javascript>  var player = null; function playerReady(thePlayer) { player = window.document[thePlayer.id];   } setOverlayHTML(); setInterval( "setFooterHTML()", 15000 ); cdInterval=null; function setBannerHTML(banner_html) { document.getElementById("banner_container").innerHTML = banner_html; } function removeBannerHTML() { document.getElementById("banner_container").innerHTML = ""; } function thisMovie(movieName) { if (navigator.appName.indexOf("Microsoft") != -1) { return window[movieName]; } else { return document.getElementById(movieName); } } function removeOverlayHTML() { document.getElementById("ad_overlay_content").innerHTML = ""; document.getElementById("ad_overlay").style.display="none"; cdInterval=0;   document.getElementById("countdownnum").innerHTML=0; player.sendEvent("PLAY", true);   }   function setOverlayHTML() {   removeFooterHTML(); document.getElementById("ad_overlay_content").innerHTML = "<iframe frameborder='0' marginheight='0' marginwidth='0' scrolling='no' src='http://italiaarotoli.altervista.org/tv/banner1.htm' height='250'></iframe>"; document.getElementById("countdownnum").innerHTML="60"; cdInterval=setInterval("countDown()",1000); document.getElementById("ad_overlay").style.display=""; }   function setFooterHTML() {   document.getElementById("ad_footer_content").innerHTML = "<iframe frameborder='0' marginheight='0' marginwidth='0' scrolling='no' src='http://italiaarotoli.altervista.org/tv/banner2.htm' width='468' height='60' ></iframe>"; document.getElementById("ad_footer").style.display=""; } function removeFooterHTML() { document.getElementById("ad_footer_content").innerHTML = ""; document.getElementById("ad_footer").style.display="none"; } function countDown() { currentCD=parseInt(document.getElementById("countdownnum").innerHTML); if (currentCD==1) removeOverlayHTML(); else  document.getElementById("countdownnum").innerHTML=(currentCD-1); }   </script>