function totaal() 
{
	prijsx = 0;
	for(i=1;i < 26;i++)
	{ 
		var prx = eval("this.form.pr" + i);
		var atx = eval("this.form.at" + i);
		prijsx = prijsx + parseFloat(atx.value) * parseFloat(prx.value);
	}
	
	prijsx = prijsx.toFixed(2);
	this.form.prijs.value = prijsx;	
}

 function imgOn(imgName) {
        document[imgName].src = "images/menu_" + imgName + "_on.gif";
    }
 function imgOff(imgName) {
        document[imgName].src = "images/menu_" + imgName + ".gif";
    }


function setOptions(chosen) {
	var selbox = document.form.typex;
	 
	selbox.options.length = 0;
	if (chosen == "") {
	  selbox.options[selbox.options.length] = new Option('---','');
	  selbox.disabled = true;
	}
	if (chosen == "logies") {
	  selbox.options[selbox.options.length] = new Option('Alle types','X');
				  selbox.options[selbox.options.length] = new Option('Camping','5');
				  selbox.options[selbox.options.length] = new Option('Gastenkamers','2');
				  selbox.options[selbox.options.length] = new Option('Hoevetoerisme','4');
				  selbox.options[selbox.options.length] = new Option('Hotels','1');
				  selbox.options[selbox.options.length] = new Option('Jeugdverblijf','6');
				  selbox.options[selbox.options.length] = new Option('Vakantiewoning','3');
			  selbox.disabled = false;
	}
	if (chosen == "streekproducten") {
	  selbox.options[selbox.options.length] = new Option('---','');
	  selbox.disabled = true;
	}
	if (chosen == "recreatie") {
	  selbox.options[selbox.options.length] = new Option('Alle types','X');
				  selbox.options[selbox.options.length] = new Option('Ballonvaren','1');
				  selbox.options[selbox.options.length] = new Option('Bowling','8');
				  selbox.options[selbox.options.length] = new Option('Golf','9');
				  selbox.options[selbox.options.length] = new Option('Hengelen','7');
				  selbox.options[selbox.options.length] = new Option('Huifkartochten','2');
				  selbox.options[selbox.options.length] = new Option('Indoor speeltuinen','10');
				  selbox.options[selbox.options.length] = new Option('Kajakken','5');
				  selbox.options[selbox.options.length] = new Option('Maneges','11');
				  selbox.options[selbox.options.length] = new Option('Mountainbike','6');
				  selbox.options[selbox.options.length] = new Option('Recreatiedomeinen','12');
				  selbox.options[selbox.options.length] = new Option('Valschermspringen','4');
				  selbox.options[selbox.options.length] = new Option('Zweefvliegen','3');
				  selbox.disabled = false;
	}
	if (chosen == "cultuur") {
	  selbox.options[selbox.options.length] = new Option('Alle types','X');
				  selbox.options[selbox.options.length] = new Option('Andere','4');
				  selbox.options[selbox.options.length] = new Option('Begijnhoven','1');
				  selbox.options[selbox.options.length] = new Option('Kastelen / Versterkingen','3');
				  selbox.options[selbox.options.length] = new Option('Kerken / kapellen','2');
				  selbox.options[selbox.options.length] = new Option('Kunstgaleries','5');
				  selbox.options[selbox.options.length] = new Option('Molens','6');
				  selbox.options[selbox.options.length] = new Option('Musea','7');
				  selbox.options[selbox.options.length] = new Option('Stadhuizen','8');
				  selbox.disabled = false;
	}
	if (chosen == "natuur") {
	  selbox.options[selbox.options.length] = new Option('Alle types','X');
				  selbox.options[selbox.options.length] = new Option('Natuurgebieden','2');
				  selbox.options[selbox.options.length] = new Option('Parken','1');
				  selbox.options[selbox.options.length] = new Option('Tuinen','3');
				  selbox.disabled = false;
	}
	if (chosen == "arrangementen") {
	  selbox.options[selbox.options.length] = new Option('Alle types','X');
				  selbox.options[selbox.options.length] = new Option('Bedrijfsbezoeken','3');
				  selbox.options[selbox.options.length] = new Option('Uitstappen voor groepen','1');
				  selbox.options[selbox.options.length] = new Option('Uitstappen voor individuelen','2');
				  selbox.disabled = false;
	}
}

function setOptions2(chosen) {
	var selbox = document.form.typex;
	 
	selbox.options.length = 0;
	if (chosen == "") {
	  selbox.options[selbox.options.length] = new Option('---','');
	  selbox.disabled = true;
	}
	if (chosen == "1") {
	  selbox.options[selbox.options.length] = new Option('Toerisme Dijleland','0');
	  selbox.options[selbox.options.length] = new Option('Bertem','05');
		  selbox.options[selbox.options.length] = new Option('Hoeilaart','13');
		  selbox.options[selbox.options.length] = new Option('Huldenberg','03');
		  selbox.options[selbox.options.length] = new Option('Kampenhout','10');
		  selbox.options[selbox.options.length] = new Option('Overijse','01');
		  selbox.options[selbox.options.length] = new Option('Tervuren','02');
		  selbox.options[selbox.options.length] = new Option('Zaventem','07');
		  selbox.disabled = false;
	}
	if (chosen == "2") {
	  selbox.options[selbox.options.length] = new Option('---','');
	  selbox.disabled = true;
	}
	if (chosen == "3") {
	  selbox.options[selbox.options.length] = new Option('---','');
	  selbox.disabled = true;
	}
}


function MM_preloadImages() { //v3.0
  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_swapImgRestore() { //v3.0
  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_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_swapImage() { //v3.0
  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 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_goToURL() { //v3.0
  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_popupMsg(msg) { //v1.0
  alert(msg);
}

function MM_preloadImages() { //v3.0
  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_swapImgRestore() { //v3.0
  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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

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+' moet een e-mailadres bevatten.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' moet een getal bevatten.\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+' moet een getal zijn tussen '+min+' en '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is vereist.\n'; }
  }

  if (errors) alert('Gelieve de volgende zaken te verbeteren:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function go2(object,page) {
    window.location.href = page + object.options[object.selectedIndex].value;
}

function go3(object,id) {
    window.location.href = object.options[object.selectedIndex].value + '?gemeente=' + id;
}