var index = 0;
banners = new Array();

banners[ index++ ] = '<a href="http://www.interdesa.com/radioxinternet.shtml"><IMG  width="468" height="60" alt="Transmisión de radio por Internet por medio de SHOUTcast para WinAmp, Windows Media Player, RealOne y QuickTime" border="0" src="../img/banner-radio-468x60.gif"></a>';

//banners[ index++ ] = '<a href=""><IMG  width="468" height="60" alt="comment" border="0" src=""></a>';

function RandomCero( N )
{
  return Math.floor( N * Math.random() );
}

var num = RandomCero( banners.length );
document.write( banners [ num ] );