function banner() {};
var bannerTopo2 = new banner();
var number2 = 0;

function mostraBanner2()
{

// bannerArray
bannerTopo2[number2++] = "<a href='http://www.swingchat.com.br/component/content/article/50-festas-liberais/91-shadows-club.html'><img src='http://www.swingchat.com.br/images/banners/shadowsclub468x60.png' border='0' alt='Shadows Club' /></a>"

increment2 = Math.floor(Math.random() * number2);
   while( bannerTopo2[increment2] == undefined )
   {	      increment = Math.floor(Math.random() * number2);   }
   document.getElementById('dvBanner2').innerHTML = bannerTopo2[increment2];

setTimeout("mostraBanner2();",15000);
}
mostraBanner2();