function checkform() {
  error = 0;
    if(document.email_contact.family_name.value == '' ) {
	  error = 'Familyname\n';
	}
    if(document.email_contact.first_name.value == '' ) {
	  error = error + 'First Name\n';
	}
    if(document.email_contact.title.value == '' ) {
	  error = error + 'Title\n';
	}
    if(document.email_contact.profession.value == '' ) {
	  error = error + 'Profession\n';
	}
    if(document.email_contact.address.value == '' ) {
	  error = error + 'Address\n';
	}
    if(document.email_contact.postcode.value == '' ) {
	  error = error + 'Post Code\n';
	}
    if(document.email_contact.town.value == '' ) {
	  error = error + 'Town\n';
	}
    if(document.email_contact.country.value == '' ) {
	  error = error + 'Country\n';
	}
    if(document.email_contact.phone.value == '' ) {
	  error = error + 'Phone\n';
	}
    if(document.email_contact.email.value == '' ) {
	  error = error + 'E-mail\n';
	}						
  
 if(error != 0) {
    error = 'Please fill in:\n' + error;
    alert(error);
	return false;  
 } 
 else {
    return true;
 }
}