function formCheck(fmname){
  if (fmname.ContactName.value == ""){
    alert("Please enter your name.");
    fmname.ContactName.focus();
    return false;
  }
  if (fmname.CompanyName.value == ""){
    alert("Please enter your company name.");
    fmname.CompanyName.focus();
    return false;
  }
  if (fmname.ContactPhone.value == ""){
    alert("Please enter your phone number.");
    fmname.ContactPhone.focus();
    return false;
  }
  if (fmname.Comments.value == ""){
    alert("Please enter the reason for requesting a visit in the comments area.");
    fmname.Comments.focus();
    return false;
  }
  return true;
}