var kMaanden = new Array("januari","februari","maart","april","mei","juni","juli","augustus","september","oktober","november","december");
	var isNS = 0;
	var isNS4 = 0;
	var isIE = 0;
	var isIE4 = 0;
	var isIE5 = 0;
	var isOP = 0;
	var isKONQ = 0;
	var isSAF = 0;
	var isFF = 0;
	var isIE5mac = 0;
	var isIE5win = 0;
	var isWin = 0;
	var isMac = 0;
	var isLin = 0;

	var d, dom;
	
	d = document;
	n = navigator;
	na = n.appVersion.toLowerCase();
	nua = n.userAgent.toLowerCase(); 

	isWin = ( na.indexOf( 'win' ) != -1 );
	isMac = ( na.indexOf( 'mac' ) != -1 );
	isLin = ( nua.indexOf( 'linux' ) != -1 );
	
	if ( !d.layers ){
		dom = ( d.getElementById );
		isOP = ( nua.indexOf( 'opera' ) != -1 );
		isKONQ = ( nua.indexOf( 'konqueror' ) != -1 );
		isSAF = ( nua.indexOf( 'safari' ) != -1 );
		isFF = ( nua.indexOf( 'gecko' ) != -1 && !isSAF && !isKONQ);
		isIE = ( d.all && !isOP );
		isIE4 = ( isIE && !dom );
	
		/*
		ie5x tests only for functionality. ( dom||ie5x ) would be default settings. 
		Opera will register true in this test if set to identify as IE 5
		*/
	
		isIE5 = ( d.all && dom );
		isIE5mac = ( isMac && isIE5 );
		isIE5win = ( isWin && isIE5 );
	}

 function textareaFormaat(fObject, fHeight)
 {
    a = fObject.value.split('\n');
    b = 1;
    for (x=0;x < a.length; x++)
    {
       if (a[x].length >= fObject.cols) b+= Math.floor(a[x].length/fObject.cols);
    }
    b+= a.length;
//    if (b > fObject.rows && nua.indexOf('opera') == -1) fObject.rows = b;
    window.status = 'teller' & b;
 }

 function controleer(veld)
 {
    if (veld.type == "textarea")
    {
       var fOngeldig ="";
    }
    else
    {
       var fOngeldig ="!#$%^&*(){}[][\|;:><,~`\"'";
    }

    var fCheck = 1;
    var fTmp;
    var fVeldnaam = "";

    switch (veld.name)
    {
    case "gNaam":
       fVeldnaam = " 'Naam'";
       break
    case "gPlaats":
       fVeldnaam = " 'Plaats'";
       break
    }

    for (var fI=0; fI<veld.value.length; fI++)
    {
       fTmp = "" + veld.value.substring(fI, fI+1);
       if (fOngeldig.indexOf(fTmp) > "-1") fCheck = 0;
    }

    if (fCheck == 0)
    {
       alert("Het veld"+fVeldnaam+" bevat ongeldige karakters.");
       veld.focus();
       veld.select();
    }
 }

 function openpopup(fLink, fVensternaam, fEigenschappen)
 {
    if (fEigenschappen == "standaard")
    {
       fEigenschappen = "width=280,height=260";
    }

    window.open(fLink,fVensternaam,fEigenschappen);
 }

 function gbSnelverwijderKlik(id)
 {
 }

 function RegelOver(bron,kleur)
 {
    if (!bron.contains(event.fromElement))
    {
       if (kleur == 'menu')
       {
          kleur = '#E0E0E0';
       }
       bron.bgColor = kleur;
       bron.style.cursor = 'default';
    }
 }

 function RegelUit(bron,kleur)
 {
    if (!bron.contains(event.toElement))
    {
       if (kleur == 'leeg')
       {
          kleur = ''
       }
       bron.bgColor = kleur;
    }
 }

// FOTOALBUM

      function makevisible(cur,which)
      {
         strength=(which==0)? 1 : 0.9
      
         if (cur.style.MozOpacity)
            cur.style.MozOpacity=strength
         else if (cur.filters)
            cur.filters.alpha.opacity=strength*100
      }