var how_many_ads = 17;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;

if (ad==1) {
txt="";
url="http://www.goingplaces4x4.co.za";
alt="Going Places 4x4";
banner="images/banners/goingplaces4x4.jpg";
width="118";
height="100";
}

if (ad==2) {
txt=""; 
url="http://www.safaricentre.co.za";
alt="Safari Centre";
banner="images/banners/safaricentre.jpg";
width="126";
height="100";
}

if (ad==3) {
txt=""; 
url="http://www.frontrunner.co.za";
alt="Frontrunner";
banner="images/banners/frontrunner.jpg";
width="152";
height="100";
}

if (ad==4) {
txt=""; 
url="http://www.kemptoncaravans.co.za";
alt="Kempton Caravans";
banner="images/banners/kemptoncaravans.jpg";
width="263";
height="60";
}

if (ad==5) {
txt=""; 
url="http://www.bridgestone.co.za";
alt="Bridgestone Tyres";
banner="images/banners/bridgestone.gif";
width="225";
height="34";
}

if (ad==6) {
txt=""; 
url="http://www.4x4megaworld.co.za";
alt="4x4 Mega World";
banner="images/banners/4x4MegaWorld.jpg";
width="187";
height="100";
}

if (ad==7) {
txt=""; 
url="http://www.echo4x4.co.za";
alt="Echo 4x4 Centre";
banner="images/banners/echo.gif";
width="153";
height="74";
}

if (ad==8) {
txt=""; 
url="http://www.boltonsgps.co.za";
alt="Bolton's GPS Warehouse";
banner="images/banners/GPSConsultants2.gif";
width="107";
height="101";
}

if (ad==9) {
txt=""; 
url="http://www.leisuresure.co.za";
alt="Phillip Viljoen Brokers / Cross Country";
banner="images/banners/philip_cc.jpg";
width="204";
height="100";
}

if (ad==10) {
txt=""; 
url="http://www.karibaproducts.co.za";
alt="Kariba Products";
banner="images/banners/Kariba.gif";
width="133";
height="72";
}

if (ad==11) {
txt=""; 
url="http://www.tracks4africa.com";
alt="Tracks 4 Africa";
banner="images/banners/Tracks4Africa.gif";
width="133";
height="42";
}

if (ad==12) {
txt=""; 
url="http://www.bigcountry.co.za";
alt="Big Country";
banner="images/banners/BigCountry.gif";
width="178";
height="63";
}

if (ad==13) {
txt=""; 
url="http://www.leisurewheels.com";
alt="Leisure Wheels";
banner="images/banners/LeisureWheels.gif";
width="217";
height="54";
}

if (ad==14) {
txt=""; 
url="http://www.securefit.co.za";
alt="Secure Fit";
banner="images/banners/SecureFit.gif";
width="188";
height="33";
}

if (ad==15) {
txt=""; 
url="http://mags.wheels24.co.za/Driveout/Home/";
alt="WegRy - Heelpad Grondpad";
banner="images/banners/Wegry.gif";
width="185";
height="56";
}

if (ad==16) {
txt=""; 
url="http://www.snomaster.co.za";
alt="Snomaster";
banner="images/banners/Snomaster.jpg";
width="150";
height="58";
}

if (ad==17) {
txt=""; 
url="http://www.4x4offroadclub.co.za/Big5Award.asp";
alt="Driven the big 5";
banner="images/banners/Big5Logo.gif";
width="56";
height="58";
}

//document.write('<center>');
document.write('<a class=adbanner href=\"' + url + '\" target=\"_blank\">');
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0>');
//document.write('<small>' + txt + '</small></a>');
//document.write('</center>');