function toon(provincie, checkplaatsen) {
	   if(!checkplaatsen)checkplaatsen=false;
	   if(provincie == '')provincie='nederland';
	   document.getElementById('provincie').src = '/images/kaart/' + provincie + '.gif';
	   if(checkplaatsen){
		   s = new Array();
		   if(provincie == 'nederland'){
			 for(i=0; i<p.length; i++){
				s[s.length]	= p[i][0]; 
			 }
		   } else {
		   
			for(i=0; i<p.length; i++){
				//alert(i+".\n\n"+p[i]+"\n\n"+p[i][1]+' == '+provincie);
				if(p[i][1] == provincie){
					s[s.length]	= p[i][0]; 
				}
			}
		   }
			el = document.getElementById('f_city');
			el.length = 1;
			for(i=0; i<s.length; i++){
				add_option(el, s[i], s[i]);	
			}
	   }
   }

function add_option(obj, v, text)
{
  var op = document.createElement('option');
  op.text = text;
  op.value = v;
  try {
    obj.add(op, null); // standards compliant; doesn't work in IE
  }
  catch(ex) {
    obj.add(op); // IE only
  }
}

	/**
   function activate(provincie) {
   	document.getElementById('detailweergave').src = '/images/' + provincie + '.gif';
   	jah('/onderlingen.php?provincie=' + provincie, 'navpd');
   }
   */

   function hide() {
      document.getElementById('provincie').src = '/images/kaart/nederland.gif';
   }
	
   if (document.images){
	   pic1= new Image(215,170);
	   pic1.src="/images/kaart/gelderland.gif";
	   
	   pic2= new Image(215,170);
	   pic2.src="/images/kaart/limburg.gif";

	   pic3= new Image(215,170);
	   pic3.src="/images/kaart/zeeland.gif";

	   pic4= new Image(215,170);
	   pic4.src="/images/kaart/noordbrabant.gif";

	   pic5= new Image(215,170);
	   pic5.src="/images/kaart/groningen.gif";

	   pic6= new Image(215,170);
	   pic6.src="/images/kaart/zuidholland.gif";

	   pic7= new Image(215,170);
	   pic7.src="/images/kaart/utrecht.gif";

	   pic8= new Image(215,170);
	   pic8.src="/images/kaart/flevoland.gif";

	   pic9= new Image(215,170);
	   pic9.src="/images/kaart/friesland.gif";

	   pic10= new Image(215,170);
	   pic10.src="/images/kaart/overijssel.gif";

	   pic11= new Image(215,170);
	   pic11.src="/images/kaart/drenthe.gif";

	   pic12= new Image(215,170);
	   pic12.src="/images/kaart/noordholland.gif";
  	}

	
	function jah(url,target) {
		
	    // native XMLHttpRequest object
	    //document.getElementById(target).innerHTML = 'sending...';
	    if (window.XMLHttpRequest) {
	        req = new XMLHttpRequest();
	        req.onreadystatechange = function() {jahDone(target);};
	        req.open("GET", url, true);
	        req.send(null);
	    // IE/Windows ActiveX version
	    } else if (window.ActiveXObject) {
	        req = new ActiveXObject("Microsoft.XMLHTTP");
	        if (req) {
	            req.onreadystatechange = function() {jahDone(target);};
	            req.open("GET", url, true);
	            req.send();
	        }
	    }
	}

	function jahDone(target) {
	    // only if req is "loaded"
	    if (req.readyState == 4) {
	        // only if "OK"
	        if (req.status == 200) {
	            results = req.responseText;
	            document.getElementById(target).innerHTML = results;
	        } else {
	            document.getElementById(target).innerHTML="jah error:\n" +
	                req.statusText;
	        }
	    }
	}