function copyall() {
    document.getElementById('dsply_aantal_deelnemers').value=document.getElementById('aantal_deelnemers').value;
    document.getElementById('dsply_kamers1persoons').value=document.getElementById('kamers1persoons').value;
    document.getElementById('dsply_kamers2persoons').value=document.getElementById('kamers2persoons').value;
    document.getElementById('dsply_dag').value=document.getElementById('dag').value;
    document.getElementById('dsply_maand').value=document.getElementById('maand').value;
    document.getElementById('dsply_jaar').value=document.getElementById('jaar').value;
    document.getElementById('dsply_bedrijfsnaam').value=document.getElementById('bedrijfsnaam').value;
    document.getElementById('dsply_straat').value=document.getElementById('straat').value;
    document.getElementById('dsply_huisnummer').value=document.getElementById('huisnummer').value;
    document.getElementById('dsply_postcode').value=document.getElementById('postcode').value;
    document.getElementById('dsply_plaats').value=document.getElementById('plaats').value;
    document.getElementById('dsply_aanhef').value=document.getElementById('aanhef').value;
    document.getElementById('dsply_voornaam').value=document.getElementById('voornaam').value;
    document.getElementById('dsply_achternaam').value=document.getElementById('achternaam').value;
    document.getElementById('dsply_email').value=document.getElementById('email').value;
    document.getElementById('dsply_telefoon').value=document.getElementById('telefoon').value;
    document.getElementById('dsply_fax').value=document.getElementById('fax').value;
    document.getElementById('dsply_opmerkingen').value=document.getElementById('opmerkingen').value;
}

function show(forward) {
  	if (forward == 1)
  	{
  		show1();
  	}
  	else if (forward == 2)
  	{
  		show2();
  	}
  	else if (forward == 3)
  	{
  		show3();
  	}
  	else if (forward == 4)
  	{
  		show4();
  	}
}
  
function show1() {
    document.getElementById('step1').style.display='block';
    document.getElementById('step2').style.display='none';
    document.getElementById('step3').style.display='none';
    document.getElementById('step4').style.display='none';
}
  
function show2() {
    document.getElementById('step1').style.display='none';
    document.getElementById('step2').style.display='block';
    document.getElementById('step3').style.display='none';
    document.getElementById('step4').style.display='none';
}
  
function show3() {
    document.getElementById('step1').style.display='none';
    document.getElementById('step2').style.display='none';
    document.getElementById('step3').style.display='block';
    document.getElementById('step4').style.display='none';
}
  
function show4() {
    document.getElementById('step1').style.display='none';
    document.getElementById('step2').style.display='none';
    document.getElementById('step3').style.display='none';
    document.getElementById('step4').style.display='block';
    copyall();
}

function countem() {
    for(x=0;x<document.form1.length;x++) {
      	elmname = document.form1.elements[x].name;
      	elmtype = document.form1.elements[x].type;
      	elmnum = x;
      	if(elmtype == 'text' || elmtype == 'radio' || elmtype == 'textarea' || elmtype == 'select-one') {
        	alert("elementname = " + elmname + "\nelementtype = " + elmtype + "\nelementnummer = " + elmnum);
      	}
    }
}