var ns4 = (document.layers);
var ie4 = (document.all && !document.getElementById);
var ie5 = (document.all && document.getElementById);
var ns6 = (!document.all && document.getElementById);
function showdiv(laag){
	if(ns4){document.layers[laag].display = "block";}
	else if(ie4){document.all[laag].style.display = "block";}
	else if(ie5 || ns6){document.getElementById(laag).style.display = "block";}
}
function hidediv(laag){
	if(ns4){document.layers[laag].display = "none";}
	else if(ie4){document.all[laag].style.display = "none";}
	else if(ie5 || ns6){document.getElementById(laag).style.display = "none";}
}
function isEmailAddress (string) {
  var addressPattern = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
  return addressPattern.test(string);
}


function checkFormName(theForm){
  if(!validRequired(theForm.vars,'naam'))
    return false 	

}

function checkFormNum(theForm){
	if(document.getElementById("voorwaarden")!=null){
		if(theForm.voorwaarden.checked == false){
			alert('Je dient akkoord te gaan met de voorwaarden.');
			return false;
		}
	}
  if(!validRequired(theForm.imobilenr,'mobiel nummer'))
    return false;
  if(theForm.imobilenr.value.length != 10){
	alert('je mobiel nummer moet bestaan uit 10 cijfers');
    return false;
  }
  
return true;

}

function checkFormTotal(theForm){
	if(document.getElementById("voorwaarden")!=null){
		if(theForm.voorwaarden.checked == false){
			alert('Je dient akkoord te gaan met de voorwaarden.');
			return false;
		}
	}
	if(document.getElementById("email")!=null){
	  if(!validEmail(theForm.email,'Email adres'))
			return false;
	}
  if(!validRequired(theForm.imobilenr,'mobiel nummer'))
    return false;
  if(theForm.imobilenr.value.length != 10){
	alert('je mobiel nummer moet bestaan uit 10 cijfers ');
    return false;
  }
  
return true;

}

var numb      = "0123456789";
var phone     = "- ()"+numb;
var price     = ",.-"+numb;
var capitals  = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
var undercast = "abcdefghijklmnopqrstuvwxyz";
var alphabet  = capitals+undercast;
var numbalphabet = alphabet+numb;

function restrictKeys(t,v){
	var w = "";
	for (i=0; i < t.value.length; i++) {
		x = t.value.charAt(i);
		if (v.indexOf(x,0) != -1)
			w += x;
	}
	t.value = w;
}

function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) { // if cookie exists
      offset += search.length
      // set index of beginning of value
      end = document.cookie.indexOf(";", offset);
      // set index of end of cookie value
      if (end == -1)
         end = document.cookie.length;
      returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

function loadornot(){
	if (get_cookie('popunder')==''){
		if(popunder!='') {
			loadpopunder()
		}
		document.cookie="popunder=yes"
	}
}

function loadpopunder(){
	win2=window.open(popunder)
	win2.blur()
}