function validate()
{
   if (document.forms[0].name.value =="") {
      alert("Please enter your name");
      return false;
   }
   if (document.forms[0].company.value =="") {
      alert("Please enter your company name");
      return false;
   }
   if (document.forms[0].email.value =="") {
      alert("Please enter your email address");
      return false;
   }
   if (document.forms[0].size.value =="" && document.forms[0].properties.value ==""){
      alert("Please enter either your fleet size or no. of properties");
      return false;
   }
   alert("Thank you for your time. Your request has been emailed to our sales department");
}