function checkDate(curEngine, modus) {
	var d1 = document.getElementById(curEngine).t_tag.value;
	var m1 = document.getElementById(curEngine).t_monat.value;
	if(d1<10) d1 = "0"+d1;
	if(m1<10) m1 = "0"+m1;
	var d2 = document.getElementById(curEngine).r_tag.value;
	var m2 = document.getElementById(curEngine).r_monat.value;
	if(d2<10) d2 = "0"+d2;
	if(m2<10) m2 = "0"+m2;
	var jetzt = new Date();
	if(Number(document.getElementById(curEngine).t_jahr.value + "" + m1 + "" + d1) < Number(document.getElementById(curEngine).r_jahr.value + "" + m2 + "" + d2) && Number(document.getElementById(curEngine).t_jahr.value) == jetzt.getFullYear()) {
		document.getElementById(curEngine).t_jahr.value= Number(document.getElementById(curEngine).t_jahr.value);
	}
	if(Number(document.getElementById(curEngine).r_jahr.value + "" + m2 + "" + d2) <= Number(document.getElementById(curEngine).t_jahr.value + "" + m1 + "" + d1)) {
		document.getElementById(curEngine).r_jahr.value = document.getElementById(curEngine).t_jahr.value;
		if(Number(document.getElementById(curEngine).t_monat.value) < 12 && modus == 'dep') {
			document.getElementById(curEngine).r_monat.value = Number(document.getElementById(curEngine).t_monat.value) + 1;
		} else if(Number(document.getElementById(curEngine).r_monat.value) > 1 && modus == 'arr') {
			document.getElementById(curEngine).t_monat.value = Number(document.getElementById(curEngine).r_monat.value) - 1;
		} else {
			if(modus == 'dep') document.getElementById(curEngine).r_monat.value = document.getElementById(curEngine).t_monat.value;
			if(modus == 'arr') document.getElementById(curEngine).t_monat.value = document.getElementById(curEngine).r_monat.value;
		}
		document.getElementById(curEngine).r_tag.value = document.getElementById(curEngine).t_tag.value;
	}
	return true;
}


DatArray = new Array("So ","Mo ","Di ","Mi ","Do ","Fr ","Sa ")

function Search(){
	window.document.GO.submit()
}

function SELECT_termin(){
	document.write("<select name='termin' size=1>")
	for (var i=3; i<=360;i++){document.write('<option value='+GetDatum(i)+'>'+GetDatum(i)+'')}
	document.write("</select>")
}

function SELECT_ruecktermin(){
	document.write("<select name='ruecktermin' size=1>")
	for (var i=4; i<=360;i++){
		if (i==30) document.write('<option selected ');  else document.write('<option ');
		document.write('value='+GetDatum(i)+'>'+GetDatum(i)+'')
	}
	document.write('</select>')
}

function alterkind(secalter){
	for(i=2;i<=16;i++){
		if(i==secalter) document.write('<option value="'+i+'" selected>'+i+' Jahre</option>');
		else document.write('<option value="'+i+'">'+i+' Jahre</option>');
	}
}


function GetDatum(offset){
var time = new Date()
time.setTime( time.getTime()+offset*86400000)
return time.getDate()+'.'+(1+time.getMonth())+'.'+(2000+(time.getYear()%100))
}

function GetWochentagDatum(offset)
{
var time = new Date()
time.setTime( time.getTime()+offset*86400000)
var sYear = '' + (time.getYear()%100); 
if (sYear.length <= 1) { sYear = '0' + sYear; }
return DatArray[time.getDay()]+''+time.getDate()+'.'+(1+time.getMonth())+'.'+sYear;
}

function GetStamp(offset)
{
var time = new Date()
time.setTime( time.getTime()+offset*86400000)
return Math.round(time.getTime() / 1000);
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
// -->

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

var erster_termin=GetDatum(2);
var letzter_termin_hin=GetDatum(360);
var letzter_termin_rueck=GetDatum(364);
var termin_hin=GetDatum(0);
var termin_rueck=GetDatum(25);
var letzter_termin_hin_stamp=GetStamp(360);
var letzter_termin_rueck_stamp=GetStamp(364);
var ts_termin=GetStamp(2);
var ts_ruecktermin=GetStamp(25);