function checkform4() {
        	
var heritageculture = document.emailform4.heritageculture.value;
var naturewildlife = document.emailform4.naturewildlife.value;
var adventure = document.emailform4.adventure.value;
var relaxation = document.emailform4.relaxation.value;
var otherinterests = document.emailform4.otherinterests.value;

var northindia = document.emailform4.northindia.value;
var southindia = document.emailform4.southindia.value;
var eastindia = document.emailform4.eastindia.value;
var westindia = document.emailform4.westindia.value;
var othercountries = document.emailform4.othercountries.value;

var basic = document.emailform4.basic.value;
var midrange = document.emailform4.midrange.value;
var highend = document.emailform4.highend.value;
var luxury = document.emailform4.luxury.value;
var superluxury = document.emailform4.superluxury.value;

var adultnum = document.emailform4.adultnum.value;
//var adultage = document.emailform4.adultage.value;
var childnum = document.emailform4.childnum.value;
//var childage = document.emailform4.childage.value;
var roomnum = document.emailform4.roomnum.value;

var arrday = document.emailform4.arrday.value;
var arrmonth = document.emailform4.arrmonth.value;
var arryear = document.emailform4.arryear.value;

var depday = document.emailform4.depday.value;
var depmonth = document.emailform4.depmonth.value;
var depyear = document.emailform4.depyear.value;


var nametitle = document.emailform4.nametitle.value;
var custname = document.emailform4.custname.value;
var daytelnum = document.emailform4.daytelnum.value;
//var evetelnum = document.emailform4.evetelnum.value;
var custcity = document.emailform4.custcity.value;
//var custcountry = document.emailform4.custcountry.value;
var custemail = document.emailform4.custemail.value;


//var pastexperience = document.emailform4.pastexperience.value;

var flag=true;
var emailindex = custemail.indexOf("@");
  var emailindex1 = custemail.indexOf(".");
  //alert(emailindex);
  //alert(emailindex1);
  if ((daytelnum == null) || (daytelnum.length < 1))
  {
	 alert("Um eventuelle Fragen zu Ihren Reisewünschen besser klären zu können und unseren Reisevorschlag bestmöglich gemäß Ihren Interessen zu gestalten, wäre es hilfreich für uns, wenn Sie uns Ihre Telefonnummer angeben könnten. Alle Ihre Daten behandeln wir strikt vertraulich und geben diese nicht an Dritte weiter. Falls Sie keine Telefonnummer eingeben wollen können Sie im Feld Telefonnummer Keine Angabe eintragen.")
	 flag=false;
	 }else if ((emailindex == "-1") ||(emailindex1 == "-1"))  {
	 alert("Bitte geben Sie eine gültige Emailadresse an.")
	 flag=false;
  }

 if (flag==false) {
 //document.emailform4.action = 'EI-tailor-made-travel2.php';
 } else {
 //document.emailform4.action = 'EI-tailor-made-thank-you.php';
 document.emailform4.submit();
 }

}