function datum_plus(abfahrt,k){
         ankunftArray = abfahrt.split("/");
         neuAnkunftDatum = ankunftArray[1]+'/'+ankunftArray[0]+'/'+ankunftArray[2];
         ankunftDate = new Date(neuAnkunftDatum);
         ankunftInMS = ankunftDate.getTime();
         abfahrtDate = new Date(ankunftInMS+87400000*k);
         neuAbfahrtDate = abfahrtDate.getDate();
         if(neuAbfahrtDate<10)
         neuAbfahrtDate = "0"+neuAbfahrtDate;
         neuAbfahrtMonat = abfahrtDate.getMonth()+1;
         if(neuAbfahrtMonat<10)
         neuAbfahrtMonat = "0"+neuAbfahrtMonat;
         neuAbfahrtJahr = abfahrtDate.getFullYear();
         abfahrt = neuAbfahrtDate+"/"+neuAbfahrtMonat+"/"+neuAbfahrtJahr;
         return  abfahrt
}
//------------------------------------------------------------------------------
function datum_days(D1,D2){
		 D1_Array = D1.split("/");
         D1_Date_str = D1_Array[1] + '/'+D1_Array[0] + '/' +D1_Array[2];
         D1_Date = new Date(D1_Date_str);
         D1_time = D1_Date.getTime();
		 D2_Array = D2.split("/");
         D2_Date_str = D2_Array[1] + '/' + D2_Array[0]+'/'+ D2_Array[2];
         D2_Date = new Date(D2_Date_str);
         D2_time = D2_Date.getTime();
		 D2_MINUS_D1_DAYS = (D2_time - D1_time)/87400000;
		 D2_MINUS_D1_DAYS = Math.round(D2_MINUS_D1_DAYS);
         return  D2_MINUS_D1_DAYS;
}
//------------------------------------------------------------------------------
function h_day(tr){
	H = new Date();
	Y = H.getFullYear();
	M = H.getMonth() + 1;
	M = ((M < 10) ? "0" + M : M );
	D = H.getDate();
	D = ((D < 10) ? "0" + D : D );
    heute = D+tr+M+tr+Y;
	return heute;
}
//------------------------------------------------------------------------------
function bday_to_age(date_bd){
	var date  = new Date();
	var year2 = date.getFullYear();
	var month2 = date.getMonth()+1;
	D1_Array = date_bd.split(".");
    D1_Date_str = D1_Array[1] + '/'+D1_Array[0] + '/' +D1_Array[2];
	var date = new Date(D1_Date_str);
	var year1 = date.getFullYear();
	var month1 = date.getMonth()+1;
	var age = year2 - year1;
	if ( month2  <  month1 )
	{
    age--;
	}
	if (month2 == month1)
	{
    if (year2 < year1)
    	{
        age--;
    	}
    }
	return age;
}
//------------------------------------------------------------------------------