function setNetHotelsDate() {
  if(document.getElementById('arrivalDay') != null) {	
  var date = new Date();
  var day = date.getDate();
  var month = date.getMonth() + 1;
  var year = date.getFullYear();
  year += '';
  year = year.substring(2,4);
  
  var arrivalDay = document.getElementById('arrivalDay');
  var departureDay = document.getElementById('departureDay');
  var arrivalMonth = document.getElementById('arrivalMonth');
  var departureMonth = document.getElementById('departureMonth');
  var arrivalYear = document.getElementById('arrivalYear');
  var departureYear = document.getElementById('departureYear');

  
  for(i=0; i<arrivalDay.options.length; i++) {	
	if(arrivalDay.options[i].text == day) {
		arrivalDay.options[i].selected = true;
	}
  }
 
  for(i=0; i<departureDay.options.length; i++) {
	if(departureDay.options[i].text == day) {	
		departureDay.options[i].selected = true;
	}
  }
  
  for(i=0; i<arrivalMonth.options.length; i++) {
	if(arrivalMonth.options[i].text == month) {	
		arrivalMonth.options[i].selected = true;
	}
  }
  for(i=0; i<departureMonth.options.length; i++) {
	if(departureMonth.options[i].text == month) {	
		departureMonth.options[i].selected = true;
	}
  }

  for(i=0; i<arrivalYear.options.length; i++) {
	if(arrivalYear.options[i].text == year) {	
		arrivalYear.options[i].selected = true;
	}
  }
  for(i=0; i<departureYear.options.length; i++) {
	if(departureYear.options[i].text == year) {	
		departureYear.options[i].selected = true;
	}
  }
  }
}

function showNetHotels() {
	var arrivalDay = document.getElementById('arrivalDay');
	var arrivalMonth = document.getElementById('arrivalMonth');
  	var arrivalYear = document.getElementById('arrivalYear');
 
	var ad = arrivalDay.options[arrivalDay.selectedIndex].text;
	var am = arrivalMonth.options[arrivalMonth.selectedIndex].text;
	var ay = arrivalYear.options[arrivalYear.selectedIndex].text;

	var departureDay = document.getElementById('departureDay');
	var departureMonth = document.getElementById('departureMonth');
  	var departureYear = document.getElementById('departureYear');
 
	var dd = departureDay.options[departureDay.selectedIndex].text;
	var dm = departureMonth.options[departureMonth.selectedIndex].text;
	var dy = departureYear.options[departureYear.selectedIndex].text;

	var date1 = new Date('20'+ay , am-1, ad);
	var date2 = new Date('20'+dy , dm-1, dd);
	
	var nights =  calcDateDiff(date1, date2);
	if(nights >= 0) {
		var url = 'http://www.welser-weihnachtswelt.at/welserweihnachtswelt/site/514190186616509261_0_517382023529054341,de.html?vm=4&Rekursiv=Y&noCaching=true&RegionProvGroup=';
		url += '&dd='+ad;
		url += '&mm='+am;
		url += '&yyyy=20'+ay;
		url += '&nights='+nights;
		url += '&quantity=1&adults=2';
		window.open(url);
	} else {
		alert("Abreisedatum darf nicht vor Anreisedatum liegen.");
	}
}

function calcDateDiff(date1, date2) {	
	var one_day=1000*60*60*24;
	return(Math.ceil((date2.getTime()-date1.getTime())/(one_day)));

}

function checkFormAnfrage() {
	
	if(document.Anfrage.Name_1.value == "") {
		alert("Bitte einen Namen eingeben!");
		document.Anfrage.Name_1.focus();
		return false;
	}
	
	if(document.Anfrage.Strasse_2.value == "") {
		alert(unescape("Bitte die Stra%DFe eingeben%21"));
		document.Anfrage.Strasse_2.focus();
		return false;
	}
	
	if(document.Anfrage.PLZ_3.value == "") {
		alert("Bitte die Postleitzahl eingeben!");
		document.Anfrage.PLZ_3.focus();
		return false;
	}
	
	if(document.Anfrage.Ort_4.value == "") {
		alert("Bitte den Ortsnamen eingeben!");
		document.Anfrage.Ort_4.focus();
		return false;
	}
	
		if(document.Anfrage.Land_5.value == "") {
		alert("Bitte ein Land eingeben!");
		document.Anfrage.Land_5.focus();
		return false;
	}
	
	if(document.Anfrage.Email_6.value == "") {
		alert("Bitte die E-Mail Adresse eingeben!");
		document.Anfrage.Email_6.focus();
		return false;
	}
	
	if(document.Anfrage.Email_6.value.indexOf('@') == -1) {
		alert(unescape("Bitte eine g%FCltige E-Mail Adresse eingeben"));
		document.Anfrage.Email_6.focus();
		return false;
	}
		
	
}