function opendatabasecode() {
  var dc=common_owneridcode; if (dc==900) dc='';
  var ic='';
  var t='';
  t+=//'<table width="304px" cellspacing="0" cellpadding="0" border="0">'+
     //'<tr>'+
     //  '<td class="td_rand" valign="top">'+
         '<table width="304" cellspacing="0" cellpadding="0" border="0" style="border:1px solid #000000;">'+
         '<col width="72"><col width="8"><col>'+
         '<tr class="tr_boxtitel"><td colspan="3">&nbsp;<b>Data-/Eigenaarcode wijzigen:</td></tr>'+
         '<tr><td colspan="3">&nbsp;Vul hieronder uw Datacode en PIN-code in<br>&nbsp;OF uw (CVG) Eigenaarcode<br>&nbsp;en klik op de \'registreer!\'-knop.<br>&nbsp;</td></tr>'+
         '<tr><td>&nbsp;Datacode</td><td>&nbsp;</td><td><input size="5" type="text" id="datacodeedit" value="'+dc+'"></td></tr>'+
         '<tr><td>&nbsp;PIN-code</td><td>&nbsp;</td><td><input size="5" type="password" id="pincodeedit"></td></tr>'+
         '<tr><td colspan="3">&nbsp;OF</td></tr>'+
         '<tr><td>&nbsp;Eigenaarcode</td><td>&nbsp;</td><td><input size="7" type="text" id="eigcodeedit" value="'+ic+'"></td></tr>'+
         '<tr><td colspan="3">&nbsp;</td></tr>'+
         '<tr>'+
           '<td colspan="2">&nbsp;</td>'+
           '<td>'+
             '<table cellspacing="0" cellpadding="0" border="0">'+
             '<tr>'+
               '<td class="td_klik_lokaal" onclick="registreerdatacode()">&nbsp;registreer!&nbsp;</td>'+
               '<td>&nbsp;</td>'+
               '<td class="td_klik_lokaal" onclick="javascript:updateinhoudspan()">&nbsp;annuleren&nbsp;</td>'+
             '</tr>'+
             '</table>'+
           '</td>'+
         '</tr>'+
    //     '</table>'+
    //   '</td>'+
    // '</tr>'+
     '</table>';
  getid('inhoudspan').innerHTML=t;
}

function controleerdatabasecode() {
  var dc=getid('datacodeedit').value;
  var pc=getid('pincodeedit').value;
  var ic=getid('eigcodeedit').value;
  var xmlHttp_portal=GetXmlHttpObject();
  if (xmlHttp_portal==null) {
    alert ("Browser does not support HTTP Request");
    return;
  }
  var url="index_login_databasecode.php";
  url+="?dc="+dc;
  url+="&pc="+pc;
  url+="&ic="+ic;
  url+="&seed="+Math.random();
//getid("txt").innerHTML+="<br>{"+url+"}";
  xmlHttp_portal.open("GET",url,false);
  xmlHttp_portal.send(null);
  if (xmlHttp_portal.status==200) {
    var s=xmlHttp_portal.responseText;
//getid("txt").innerHTML+='<br>'+s;
    getid('datacodeedit').value=s;
    if (s=='') getid('pincodeedit').value='';
  }
}

function registreerdatacode() {
  controleerdatabasecode();
  common_owneridcode=getid('datacodeedit').value;
  setdataownercookie();
  //hasdc=((common_owneridcode!='')&&(common_owneridcode!=900)); 
  hasdc=(common_owneridcode!=''); //900 moet nu wel mogelijk zijn voor de gemeenschappelijke gegevens
//getid("txt").innerHTML+='<br>'+hasdc;
  if (hasdc) getportal(1); else poar=[];
  if (hasdc) getupdate(1); else upar=[];
  updateinhoudspan();
}