function setOptions(chosen,was) {
var selbox = was;
 
selbox.options.length = 0;
if (chosen == " ") {
  selbox.options[selbox.options.length] = new Option('choose',' ');
 
}
if (chosen == "1") {
  selbox.options[selbox.options.length] = new Option('2,5','34');
  selbox.options[selbox.options.length] = new Option('3','35,6');
  selbox.options[selbox.options.length] = new Option('4','36');
  selbox.options[selbox.options.length] = new Option('4,5','36,6');
  selbox.options[selbox.options.length] = new Option('5','37,3');
  selbox.options[selbox.options.length] = new Option('5,5','38');
  selbox.options[selbox.options.length] = new Option('6','38,6');
  selbox.options[selbox.options.length] = new Option('6,5','39,3');
  selbox.options[selbox.options.length] = new Option('7','40');
  selbox.options[selbox.options.length] = new Option('7,5','40,6');
  selbox.options[selbox.options.length] = new Option('8','41,3');
  selbox.options[selbox.options.length] = new Option('8,5','42');
  selbox.options[selbox.options.length] = new Option('9','42,6');
  selbox.options[selbox.options.length] = new Option('9,5','43,3');
  selbox.options[selbox.options.length] = new Option('10','44');
  selbox.options[selbox.options.length] = new Option('10,5','44,6');
  selbox.options[selbox.options.length] = new Option('11','45,3');
  selbox.options[selbox.options.length] = new Option('11,5','46');
  selbox.options[selbox.options.length] = new Option('12','46,6');
  selbox.options[selbox.options.length] = new Option('12,5','47,3');
  selbox.options[selbox.options.length] = new Option('13','48');
  selbox.options[selbox.options.length] = new Option('13,5','48,6');
  selbox.options[selbox.options.length] = new Option('14','49,3');
  selbox.options[selbox.options.length] = new Option('15','50,6');
}
if (chosen == "2") {
  selbox.options[selbox.options.length] = new Option('2','34,5');
  selbox.options[selbox.options.length] = new Option('2,5','35');
  selbox.options[selbox.options.length] = new Option('3','35,5');
  selbox.options[selbox.options.length] = new Option('3,5','36');
  selbox.options[selbox.options.length] = new Option('4','36,6');
  selbox.options[selbox.options.length] = new Option('4,5','37,3');
  selbox.options[selbox.options.length] = new Option('5','38');
  selbox.options[selbox.options.length] = new Option('5,5','38,6');
  selbox.options[selbox.options.length] = new Option('6','39,3');
  selbox.options[selbox.options.length] = new Option('6,5','40');
  selbox.options[selbox.options.length] = new Option('7','40,6');
  selbox.options[selbox.options.length] = new Option('7,5','41,3');
  selbox.options[selbox.options.length] = new Option('8','42');
  selbox.options[selbox.options.length] = new Option('8,5','42,6');
  selbox.options[selbox.options.length] = new Option('9','43,3');
  selbox.options[selbox.options.length] = new Option('9,5','44');
  selbox.options[selbox.options.length] = new Option('10','44,6');
  selbox.options[selbox.options.length] = new Option('10,5','45,3');
  selbox.options[selbox.options.length] = new Option('11','46');
  selbox.options[selbox.options.length] = new Option('11,5','46,6');
  selbox.options[selbox.options.length] = new Option('12','47,3');
  selbox.options[selbox.options.length] = new Option('12,5','48');
  selbox.options[selbox.options.length] = new Option('13','48,6');
  selbox.options[selbox.options.length] = new Option('13,5','49,3');
  selbox.options[selbox.options.length] = new Option('14,5','50,6');
}
if (chosen == "3") {
  selbox.options[selbox.options.length] = new Option('34','34');
  selbox.options[selbox.options.length] = new Option('34,5','34,5');
  selbox.options[selbox.options.length] = new Option('35','35');
  selbox.options[selbox.options.length] = new Option('35,5','35,5');
  selbox.options[selbox.options.length] = new Option('36','36');
  selbox.options[selbox.options.length] = new Option('36,5','36,5');
  selbox.options[selbox.options.length] = new Option('37','37');
  selbox.options[selbox.options.length] = new Option('37,5','37,5');
  selbox.options[selbox.options.length] = new Option('38','38');
  selbox.options[selbox.options.length] = new Option('38,5','38,5');
  selbox.options[selbox.options.length] = new Option('39','39');
  selbox.options[selbox.options.length] = new Option('39,5','39,5');
  selbox.options[selbox.options.length] = new Option('40','40');
  selbox.options[selbox.options.length] = new Option('40,5','40,5');
  selbox.options[selbox.options.length] = new Option('41','41');
  selbox.options[selbox.options.length] = new Option('41,5','41,5');
  selbox.options[selbox.options.length] = new Option('42','42');
  selbox.options[selbox.options.length] = new Option('42,5','42,5');
  selbox.options[selbox.options.length] = new Option('43','43');
  selbox.options[selbox.options.length] = new Option('43,5','43,5');
  selbox.options[selbox.options.length] = new Option('44','44');
  selbox.options[selbox.options.length] = new Option('44,5','44,5');
  selbox.options[selbox.options.length] = new Option('45','45');
  selbox.options[selbox.options.length] = new Option('45,5','45,5');
  selbox.options[selbox.options.length] = new Option('46','46');
  selbox.options[selbox.options.length] = new Option('46,5','46,5');
  selbox.options[selbox.options.length] = new Option('47','47');
  selbox.options[selbox.options.length] = new Option('47,5','47,5');
  selbox.options[selbox.options.length] = new Option('48','48');
  selbox.options[selbox.options.length] = new Option('48,5','48,5');
  selbox.options[selbox.options.length] = new Option('49','49');
  selbox.options[selbox.options.length] = new Option('49,5','49,5');
  selbox.options[selbox.options.length] = new Option('50','50');
  selbox.options[selbox.options.length] = new Option('50,5','50,5');
}
}

//here you place the ids of every element you want.
var ids=new Array('a1','a2','a3');

function switchid(id){	
	hideallids();
	showdiv(id);
}

function hideallids(){
	//loop through the array and hide each element by id
	for (var i=0;i<ids.length;i++){
		hidediv(ids[i]);
	}		  
}

function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}

// Copyright: Mario Rudloff - IK05 - BA Eisenach :P 
// DO    NOT    REMOVE!!! xD 
// zu übergeben: zeiger auf die Select-Boxen (Quelle , Ziel) 
function shiftBox(pSrc,pTrg,welches) 
{ 
  var aNewOptions = new Array(); 
  for(var i = pSrc.options.length-1; i>=0;i--) 
  { 
     if(pSrc.options[i].selected==true) 
     { 
        aNewOptions[aNewOptions.length]= new Option(pSrc.options[i].text, pSrc.options[i].value, false, true); 
        pSrc.options[i] = null; 
     } 
  } 

  for(var i=0; i<aNewOptions.length;i++) 
  { 
     pTrg.options[pTrg.options.length]=aNewOptions[i]; 
  }
  var formular = welches;
  Inhaltschreiben(formular); 
} 
function Inhaltschreiben(formular)
{
formular.sprachkenntnisse.value="";
for (i=0;i<=formular.b.length-1;i++)
{
formular.sprachkenntnisse.value=formular.sprachkenntnisse.value+formular.b.options[i].value+",";
}
}