<!--

	function Control_book_Form(which){
		if (which.hotel_name.value.length < 1) {
			which.hotel_name.focus();
			alert("Hotel name must be filled!");
			return false;
		} else if (which.hotel_city.value.length < 1) {
			which.hotel_city.focus();
			alert("Hotel localtion must be fill!");
			return false;
		} else if((which.single_count.selectedIndex == 0) &&
			(which.double_count.selectedIndex == 0) &&
			(which.triple_count.selectedIndex == 0) &&
			(!which.other_type_room.checked)){
  			alert("At least one type of accommodation must be selected - single, double, triple or other!");
			return false;
		} else if (which.person_count.value.length < 1) {
			which.person_count.focus();
			alert("Number of persons must be filled!");
			return false;
		}else if (	(which.arrival_day.selectedIndex == 0) ||
				(which.arrival_month.selectedIndex == 0) ||
				(which.arrival_year.selectedIndex == 0) ){
			which.person_count.focus();
			alert("Arrival Date must be completely filled!");
			return false;
		} else if (which.required_name.value.length < 3) {
			which.required_name.focus();
			alert("Name value must be filled!");
			return false;
		} else if (which.required_email.value.length < 5) {
			which.required_email.focus();
			alert("E-Mail address must be filled!");
			return false;
		} else if(which.required_country.value == "") {
			alert("Country name must be filled!");
			which.required_country.focus();
			return false;
		} else if(which.required_city.value == "") {
			which.required_city.focus();
			alert("City name must be filled!");
			return false;
		} else if(which.required_phone.value == "") {
			which.required_phone.focus();
			alert("Phone number must be filled!");
			return false;
		} else {
			return(true);
		}
	}
//-->