browserOk = (((navigator.appName == "Netscape")
&& (parseInt(navigator.appVersion) >= 3))
|| ((navigator.appName == "Microsoft Internet Explorer")
&& (parseInt(navigator.appVersion)>=4)));
if(browserOk){
// Active
freightrack1 = new Image;
freightrack1.src = "/images/freighttrack_on.gif";
wineforwarding1 = new Image;
wineforwarding1.src = "/images/wineforwarding_on.gif";
inthaulage1 = new Image;
inthaulage1.src = "/images/inthaulage_on.gif";
nathaulage1 = new Image;
nathaulage1.src = "/images/nathaulage_on.gif";
warehousing1 = new Image;
warehousing1.src = "/images/warehousing_on.gif";
distribution1 = new Image;
distribution1.src = "/images/distribution_on.gif";
home1 = new Image;
home1.src = "/images/home_on.gif";
wineforwardingside1 = new Image;
wineforwardingside1.src = "/images/wineforwardingside_on.gif";
inthaulageside1 = new Image;
inthaulageside1.src = "/images/inthaulageside_on.gif";
nathaulageside1 = new Image;
nathaulageside1.src = "/images/nathaulageside_on.gif";
warehousingside1 = new Image;
warehousingside1.src = "/images/warehousingside_on.gif";
distributionside1 = new Image;
distributionside1.src = "/images/distributionside_on.gif";
freightrackside1 = new Image;
freightrackside1.src = "/images/freightrackside_on.gif";
newsletter1 = new Image;
newsletter1.src = "/images/newsletter_on.gif";
contactus1 = new Image;
contactus1.src = "/images/contactus_on.gif";
furtherinfoicon1 = new Image;
furtherinfoicon1.src = "/images/furtherinfo_on.gif";

// Passive
freightrack0 = new Image;
freightrack0.src = "/images/freighttrack_off.gif";
wineforwarding0 = new Image;
wineforwarding0.src = "/images/wineforwarding_off.gif";
inthaulage0 = new Image;
inthaulage0.src = "/images/inthaulage_off.gif";
nathaulage0 = new Image;
nathaulage0.src = "/images/nathaulage_off.gif";
warehousing0 = new Image;
warehousing0.src = "/images/warehousing_off.gif";
distribution0 = new Image;
distribution0.src = "/images/distribution_off.gif";
home0 = new Image;
home0.src = "/images/home_off.gif";
wineforwardingside0 = new Image;
wineforwardingside0.src = "/images/wineforwardingside_off.gif";
inthaulageside0 = new Image;
inthaulageside0.src = "/images/inthaulageside_off.gif";
nathaulageside0 = new Image;
nathaulageside0.src = "/images/nathaulageside_off.gif";
warehousingside0 = new Image;
warehousingside0.src = "/images/warehousingside_off.gif";
distributionside0 = new Image;
distributionside0.src = "/images/distributionside_off.gif";
freightrackside0 = new Image;
freightrackside0.src = "/images/freightrackside_off.gif";
newsletter0 = new Image;
newsletter0.src = "/images/newsletter_off.gif";
contactus0 = new Image;
contactus0.src = "/images/contactus_off.gif";
furtherinfoicon0 = new Image;
furtherinfoicon0.src = "/images/furtherinfo_off.gif";
}
function JS_mouseon(n){
if(browserOk){
imgOn = eval(n + "1.src");
document [n].src = imgOn;
}
}
function JS_mouseoff(n){
if(browserOk){
imgOff = eval(n + "0.src");
document [n].src = imgOff;
}
}

function chkForm(frm) {
  // the name of the form
  f = frm;

  // change msg to the name of any field you want to make required.
  if (f.name) {
    if (f.name.value == '') {
      alert('Have you entered your name?');
      return false;
    }
  }
  if (f.email) {
    if (f.email.value == '') {
      alert('Have you entered your email address?');
      return false;
    }
  }
  
  // if 'from' address field is used, this checks it to make sure address is valid
  if (f.email) {
    if (f.email.value != '' && (f.email.value.lastIndexOf('.') < 0 || f.email.value.lastIndexOf('@') < 1)) {
      alert('Invalid e-mail address');
      return false;
    }
    else if (f.email.value == '') {
      return confirm('Are you sure you want to send this message without an email address?');
    }
  }
}