function validator(formular) {

	var day = formular.day.value; var da;
	var month = formular.month.value; var mo;
	var year = formular.year.value; var ye;
	var box = formular.box.value; var bo;
	var night = formular.night.value; var ni;
	var people = formular.people.value; var pe;
	var name = formular.name.value; var na;
	var city = formular.city.value; var ci;
	var country = formular.country.value; var co;
	var telephone = formular.telephone.value; var email = formular.email.value; var em;
	var comments = formular.comments.value;var ci;

	if(day == "" || day == "no selection") da = "Please fill in the day.\n"; else da = "";
	if(month == "" || month == "no selection") mo = "Please fill in the month.\n"; else mo = "";
	if(year == "" || year == "no selection") ye = "Please fill in the year.\n"; else ye = "";
	if(box == "" || box == "no selection") bo = "Please fill in the room.\n"; else bo = "";
	if(night == "") ni = "Please fill in the number of nights.\n"; else ni = "";
	if(people == "") pe = "Please fill in the number of people.\n"; else pe = "";
	if(name == "") na = "Please fill in your name.\n"; else na = "";
	if((email.length<5 || email.indexOf("@")<1 || email.indexOf("@")+1==email.length || email.indexOf("@")!=email.lastIndexOf("@") || email.indexOf(".")<1 || email.lastIndexOf(".")+1==email.length || email.indexOf("@")>email.lastIndexOf(".")) && telephone == "") em = "Please fill in the phone number or e-mail address correctly.\n"; else em = "";
	var message = da + mo + ye + bo + ni + pe + na + em;
	if(message != ""){ alert(message);  return false; }else{ return true; }

}