function formHandler4(form){
var URL = document.salesSelection.site4.options[document.salesSelection.site4.selectedIndex].value;
window.location.href = URL;
}

function CheckForm() {

if (document.contactForm.firstName.value=='') {
      alert('Please provide your First Name');
      document.contactForm.firstName.focus();
      return false;
}

if (document.contactForm.lastName.value=='') {
      alert('Please provide your Last Name');
      document.contactForm.lastName.focus();
      return false;
}

if (document.contactForm.email.value=='') {
      alert('Please provide your Email Address');
      document.contactForm.email.focus();
      return false;
}

if (document.contactForm.phone.value=='') {
      alert('Please provide your Phone Number');
      document.contactForm.phone.focus();
      return false;
}

return true;
}