function validateForm() {
	if (IsEmpty(contact.b_vorname)) {
		alert("Please enter your forename");
		contact.b_vorname.focus();
		return (false); 
	}
	if (IsEmpty(contact.c_nachname)) {
		alert("Please enter your surname");
		contact.c_nachname.focus();
		return (false); 
	}
	/*if (IsEmpty(contact.e_strasse)) {
		alert("Please enter your complete address");
		contact.e_strasse.focus();
		return (false); 
	}
	if (IsEmpty(contact.f_plz)) {
		alert("Please enter your complete address");
		contact.f_plz.focus();
		return (false); 
	}
	if (IsEmpty(contact.g_ort)) {
		alert("Please enter your complete address");
		contact.g_ort.focus();
		return (false); 
	}
	if (IsEmpty(contact.h_land)) {
		alert("Please enter your complete address");
		contact.h_land.focus();
		return (false); 
	}*/
	if (IsEmpty(contact.i_email)) {
		alert("Please enter your e-mail address");
		contact.i_email.focus();
		return (false); 
	}
	if(!isValidEmail(contact.i_email)) 
  { 
      alert('Please enter a valid e-mail address')
      contact.i_email.focus(); 
      return false; 
   }
	/*if (IsEmpty(contact.j_telefon)) {
		alert("Please enter your telephone number");
		contact.j_telefon.focus();
		return (false); 
	}*/
	if (IsEmpty(contact.l_fragen)) {
		alert("Please enter a message");
		contact.l_fragen.focus();
		return (false); 
	}
	return (true);
}