function validate(f) {
  if(
  f.first.value=="" ||
  f.last.value=="" ||
  f.dob.value=="" ||  
  f.email.value=="" ||
  f.add1.value=="" ||
  f.zip.value=="" ||
  f.city.value=="" ||
  f.phone.value=="" ||
  f.dname.value=="" ||
  f.dphone.value=="" ||
  f.rdate.value=="" ||
  f.edate.value=="" ||
  f.dlicense.value=="" ||  
  f.checkbox.checked ==false)
  {alert("Please fill in all required form fields.\n\nRequired fields have *'s next to them."); return false; }
}