// JavaScript Document

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_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_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 aantalkarakters (field, maxlimit) 
{ 
	if (field.value.length > maxlimit) 
	{ 
		field.value = field.value.substring(0, maxlimit); 
	} 
	else 
	{ 
	document.getElementById('karakters').innerHTML = maxlimit - field.value.length; 
	 if (field.value.length > 50){
	  document.getElementById('vink6').style.display = 'block';
	 }
	} 
} 

function checknaam(field) 
{ 
	if (field.value.length > 1) 
	{ 
	  document.getElementById('vink7').style.display = 'block';
	 }
} 

function checkemail(field) 
{ 
	if (echeck(field.value)==true)
	{ 
	  document.getElementById('vink8').style.display = 'block';
	 }
}

function checkwinkel(field) 
{ 
	if (field.value.length > 3) 
	{ 
	  document.getElementById('vink9').style.display = 'block';
	 }
} 

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		   return false
		 }

 		 return true					
}

function SetVink(input, output){
 
 var el = document.forms['beoordeling'].elements;
 for(var i = 0 ; i < el.length ; ++i) {
  if (el[i].name == input && el[i].type == "radio") { 
   var radiogroup = el[el[i].name]; // get the whole set of radio buttons.
   var itemchecked = false;
   
   for(var j = 0 ; j < radiogroup.length ; ++j) {
    if(radiogroup[j].checked) {
	 itemchecked = true;
	 break;
	}
   }
  }   
 }
  if(itemchecked) { 
    document.getElementById(output).style.display = 'block';
	//alert("vink: "+output+" !");
  }

}

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width=420,height=400,left = 100,top = 100');");
}

function popUp2(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width=420,height=590,left = 100,top = 100');");
}

function controleerzoek(formulier,ditding){
	inputval = document.forms[formulier].elements[ditding].value;
	if(inputval.length < 3){
    alert("U dient minimaal 3 karakters op te geven!");
        return false;
    }
	else{
       return true;
    }
}

function test(ditding){
	inputval = document.getElementById(ditding).value;
	if(inputval.length < 3){
    alert("U dient minimaal 3 karakters op te geven!");
        return false;
    }
	else{
       return true;
    }
}

function layerflip(id) {
 if (document.getElementById(id).style.display == 'block') {
 document.getElementById(id).style.display = 'none';
 }
 else {
 document.getElementById(id).style.display = 'block';
 }
}