<!--

function CheckValid( f ) {
    if( f.subject.value.length == 0 ) {
	alert('The subject must not be empty!');
	return false;
    }
    if( f.message.value.length == 0 ) {
	alert('Your message must not be empty!');
	return false;
    }
    if( f.name.value.length == 0 ) {
	alert('Please enter your Name!');
	return false;
    }
    if( f.adresse.value.length == 0 ) {
	alert('Please enter your postal address!');
	return false;
    }
    if( f.plz.value.length == 0 ) {
	alert('Please enter your ZIP code!');
	return false;
    }
    if( f.ort.value.length == 0 ) {
	alert('Please enter your city!');
	return false;
    }
    if( f.land.value.length == 0 ) {
	alert('Please enter your country!');
	return false;
    }
    if( f.from.value.length == 0 ) {
	alert('Please enter your e-mail address!');
	return false;
    }
    if( f.tel.value.length == 0 ) {
	alert('Please enter your phone number!');
	return false;
    }
    return true;
} // CheckValid() -->