function MM_openBrWindow(theURL,winName,features)
{
  window.open(theURL,winName,features);
}
/*----------------------------------------------------------------------------------------------*/

function MM_goToURL()
{
  var i, args=MM_goToURL.arguments;
  document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2)
    eval(args[i]+".location='"+args[i+1]+"'");
}
/*----------------------------------------------------------------------------------------------*/

function MM_swapImgRestore()
{
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
/*---------------------------------------------------------------------------------------------------*/

function MM_preloadImages()
{
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
/*---------------------------------------------------------------------------------------------------*/

function MM_findObj(n, d)
{
  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_swapImage()
{
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
/*---------------------------------------------------------------------------------------------------*/

function controleerDatum(d)
{
  pD  = d.value;
  iRc = check_datum(pD);
  if (iRc != 1)
  {
    window.alert("Datum controleren, formaat moet dd/mm/jjjj zijn.\n");
    return false;
  }
  else
    return true;
}
/*------------------------------------------------------------------------------------------------*/

function check_datum(pDatum)
{
  slash1  = pDatum.slice(2, 3);
  slash2  = pDatum.slice(5, 6);
  if (slash1 != "/")
    return -4;
  if (slash2 != "/")
    return -4;
  dagen   = pDatum.slice(0, 2);
  dd      = dagen.valueOf();
  maanden = pDatum.slice(3, 5);
  mm      = maanden.valueOf();
  jaren   = pDatum.slice(6,10);
  jjjj    = jaren.valueOf();
  dpm     = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
  d       = new Date();
  cjjjj   = d.getFullYear();
  cjjjj++;
  if ((mm == 2) && (jjjj%4 == 0) && ((jjjj%400 == 0) || (jjjj%100 != 0)))
    dpm[1] = dpm[1] + 1;
  if ((dd > dpm[mm - 1]) || (dd < 0))
    return 0;
  if ((mm < 01) || (mm > 12))
    return 0;
  if ((jjjj < 1985) || (jjjj > cjjjj))
    return 0;
  return 1;    
}
/*------------------------------------------------------------------------------------------------*/

function contacteren(f)
{
var waarschuwing = "";
var msg1 = "Alle met * gemarkeerde veldjes moeten ingevuld worden\n";
var msg2 = "Gelieve deze alsnog in te vullen vooraleer verder te gaan\n";

  if (f.onderwerp.value == "")
    waarschuwing += "   Onderwerp werd niet ingevuld\n";
  if (f.vraag.value == "")
    waarschuwing += "   Vraag werd niet ingevuld\n";
  if (f.naam.value == "")
    waarschuwing += "   Naam werd niet ingevuld\n";
  if (f.adres.value == "")
    waarschuwing += "   Adres werd niet ingevuld\n";
  if (f.postcode.value == "")
    waarschuwing += "   Postcode werd niet ingevuld\n";
  if (f.gemeente.value == "")
    waarschuwing += "   Gemeente werd niet ingevuld\n";
  if (f.email.value == "")
    waarschuwing += "   E-mail adres werd niet ingevuld\n";

  if (f.email.value != "")
  {
    var iRc = isEmail(f.email.value)
    if (!iRc)
      waarschuwing += "   E-mail adres is niet correct ingevuld\n";
  }

  if (waarschuwing != "")
  {
    window.alert(msg1 + waarschuwing + msg2);
    return false;
  }
  else
    return true;
}
/*------------------------------------------------------------------------------------------------*/

function isEmail(str)
{
  var supported = 0;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported)
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
  return (!r1.test(str) && r2.test(str));
}
/*------------------------------------------------------------------------------------------------*/