function validator(form) { 

  if (form.company.value == "") {
    alert("Please provide us with your Company's Name.");
    form.company.focus();
    return false;
  }
  if (form.employees.value == "") {
    alert("Please provide us with your Number of Employees.");
    form.employees.focus();
    return false;
  }  
  if (form.frequency.value == 0) {
    alert("Please select your Payroll Frequency.");
    return false;
  }

return true; 
}