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var howmanyads = 3;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % howmanyads;
ad +=1;
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txt=""; 
url="http://www.iapuestas.com/afiliados/tracking/iApuestas468x60ajedrez.asp?id=7998";
alt="iApuestas";
banner="http://www.adpv.com/banners/iapuestas/iApuestas468x60ajedrez.gif";
width="468";
height="60";
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txt=""; 
url="http://tracker.tradedoubler.com/pan/TrackerServlet?p=17460&a=306436&g=0&URL=http://www.casadellibro.com/temas/ultimonivel/0,1382,c%253D120202,00.html";
alt="Casa del Libro";
banner="http://impes.tradedoubler.com/imp/img/137727/306436";
width="468";
height="60";
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txt="";
url="http://www.deportesonline.com/";
alt="DeportesOnline";
banner="Images/468x60donew.gif";
width="468";
height="60";
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if (ad==10) {
txt=""; 
url="http://www.juegon.com/juegon/clientes/iapuestas/index.jsp";
alt="Juegon";
banner="http://impes.tradedoubler.com/imp/img/175457/306436";
width="468";
height="60";
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txt=""; 
url="http://tracker.tradedoubler.com/click?p=1697&a=306436";
alt="eBay";
banner="Images/eBay468x60_eusk.gif";
width="468";
height="60";
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if (ad==10) {
txt=""; 
url="http://www.betsson.com/index.asp?partnerID=401";
alt="Betsson";
banner="http://www.iapuestas.com/banners/betsson/468x60_betting_on_chess.gif";
width="468";
height="60";
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document.write('<center>');
//document.write( txt + '<br>' );
document.write('<a href=\"' + url + '\" target=\"_blank\">');
document.write('<img src=\"' + banner + '\" width=');
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0><br></a>');
document.write('</center>');
// End -->
