function readCookie(n)
{
 a = document.cookie;
 res = '';
 while(a != '')
 {
  while(a.substr(0,1) == ' '){a = a.substr(1,a.length);}
  cookiename = a.substring(0,a.indexOf('='));
  if(a.indexOf(';') != -1)
  {cookiewert = a.substring(a.indexOf('=')+1,a.indexOf(';'));}
  else{cookiewert = a.substr(a.indexOf('=')+1,a.length);}
  if(n == cookiename){res = cookiewert;}
  i = a.indexOf(';')+1;
  if(i == 0){i = a.length}
  a = a.substring(i,a.length);
 }
 return(res)
}

function setCookie(cookiename, wert, gueltigkeit)
{

 var a = new Date();
 a = new Date(a.getTime() + gueltigkeit);
 
 document.cookie = cookiename + '=' + wert + '; expires='+ 
                   a.toGMTString()+';'; 
}

function getGETParameter( name )
{
 var ScanUrl = window.location.href;
 name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
 var regexS = "[\\?&]"+name+"=([^&#]*)";
 var regex = new RegExp( regexS );
 var results = regex.exec( ScanUrl );
 if( results == null )
  return "";
 else
  return results[1];
}

function IsNumeric(sText)
{
 if(!sText) return false;
 var ValidChars = "0123456789";
 var IsNumber=true;
 var Char;
 for (i = 0; i < sText.length && IsNumber == true; i++) 
 { 
  Char = sText.charAt(i); 
  if (ValidChars.indexOf(Char) == -1) 
  {
   IsNumber = false;
  }
 }
 return IsNumber;
}


// Wenn Agent, dann als Cookie speichern
var agent = getGETParameter('agent');
if(agent.substring(0,2) == "nl" || IsNumeric(agent) == true)
{
//alert('1');
 setCookie('nla', '1', (1000*60*60*24*30));
}
else
{
//alert('2');
}

function newsletter_einladung()
{
 // Newsletter
 // prüfe ob Newsletterabo Cookie gesetzt und prüfe anhand des Agents ob User schon einen Newsletter aboniert hat
 // wenn nicht, dann versuche POP-Up zu öffnen
 if(readCookie('nla') != 1)
 {
 //alert('4');
  // prüfe anhand des Agents ob User schon einen Newsletter aboniert hat
  var agent = getGETParameter('agent');
  
  if(agent.substring(0,2) != "nl" && IsNumeric(agent) == false && readCookie('nlt') != 1)
  {
 
 //alert('popup');
 
   // sende Cookie gültig für diese Session.
   var a = new Date(); 
   a = new Date(a.getTime() + (1000*60*40));
   //a = new Date(a.getTime());
   document.cookie = 'nlt=1; expires='+ 
                     a.toGMTString()+';'; 
 
   // Newsletter anfordern
 
   $(document).ready(function(){
       jQuery.facebox(function() {
           jQuery.facebox('<iframe width="550" height="299" src="http://cdn-application.urlaubsexperte.de/email_popup/site/request_step_01.php?site=2&email=" scrolling="no" frameborder="0"></iframe>')
       });
   });
  }
 }
}