var how_many_ads = 7;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;

if (ad==1) {
url="/products/dm100/";
alt="PLX DM 100";
banner="/MainImages/bannerRotation/DM_100b.jpg";
width="696";
height="90";
}

if (ad==2) {
url="/products/dm100/";
alt="PLX Devices DM-100";
banner="/MainImages/bannerRotation/DM_100c.jpg";
width="696";
height="90";
}

if (ad==3) {
url="/products/dm100/";
alt="PLX Devices DM-100";
banner="/MainImages/bannerRotation/DM_100d.jpg";
width="696";
height="90";
}

if (ad==4) {
url="/products/dm5/afr/";
alt="PLX Devices DM-5";
banner="/MainImages/bannerRotation/DM_5.jpg";
width="696";
height="90";
}

if (ad==5) {
url="/products/sm/afr/";
alt="PLX Devices Sm-AFR";
banner="/MainImages/bannerRotation/SM_AFR.jpg";
width="696";
height="90";
}

if (ad==6) {
url="/products/dm100/";
alt="PLX Devices DM-100";
banner="/MainImages/bannerRotation/DM_100d.jpg";
width="696";
height="90";
}

if (ad==7) {
url="/products/dm100/smafrcombo";
alt="PLX Devices DM-100";
banner="/MainImages/bannerRotation/DM100SMAFRCOMBOBANNER.jpg";
width="696";
height="90";
}

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