// JavaScript Document

var stapnr=1;

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_showHideLayersDisplay() { //v6.0
  var i,p,v,obj,args=MM_showHideLayersDisplay.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')?'':(v=='hide')?'none':v; }
    obj.display=v; }
}

function MM_showHideLayers() { //v6.0
  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; }
}


function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is nog niet juist ingevuld.\n'; }
  } if (errors) alert('De volgende fouten zijn gevonden:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function CheckForm(stap) {
  var tempresult = true;
  
  if (stap==1) {
    MM_validateForm('voornaam','','R'  ,'achternaam','','R'   ,'adres','','R'   ,'postcode','','R'   ,'woonplaats','','R'    ,'telefoon','','R'   ,'email','','R'  ,'nationaliteit','','R' ,'dag','','R'  ,'maand','','R' ,'jaar','','R');
  }
 
  if (stap==4) {
    MM_validateForm('waarheidsgetrouw','','R');
  }

  tempresult = document.MM_returnValue;
  return tempresult;
}

function showstep(stap) {
   if (CheckForm(stapnr)==true) {
    stapnr=stap;
    MM_showHideLayersDisplay('vacature_stap1','','hide');
    MM_showHideLayersDisplay('vacature_stap2','','hide');
    MM_showHideLayersDisplay('vacature_stap3','','hide');
    MM_showHideLayersDisplay('vacature_stap4','','hide');
    MM_showHideLayersDisplay('vacature_stap' + stap,'','show');

    MM_findObj('knop1').className='tabel_kleur_content2';
    MM_findObj('knop2').className='tabel_kleur_content2';
    MM_findObj('knop3').className='tabel_kleur_content2';
    MM_findObj('knop4').className='tabel_kleur_content2';
    MM_findObj('knop' + stap).className='tabel_kleur_kop';
  }
}