<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
// Cookie håndteringsrutinerne fra http://javascript.internet.com/cookies/only-popup-once.html
var expMinutes=30;
var expDays = expMinutes*24*60; // number of days the cookie should last

var popop=true;

// var page = "/vispopopartikel.php?artikelnr=1417";
var page = "/vispopopartikel.php?gruppenavn=popopreklame";

var windowprops = "width=280,height=330,location=no,toolbar=no,menubar=no,scrollbars=no,directories=no,resizable=no,status=no,dependent=no";

function GetCookie (name) {  
    var arg = name + "=";  
    var alen = arg.length;  
    var clen = document.cookie.length;  
    var i = 0;  
    while (i < clen) {    
        var j = i + alen;    
        if (document.cookie.substring(i, j) == arg)      
        return getCookieVal (j);    
        i = document.cookie.indexOf(" ", i) + 1;    
        if (i == 0) break;   
    }  
    return null;
}

function SetCookie (name, value) {  
    var argv = SetCookie.arguments;  
    var argc = SetCookie.arguments.length;  
    var expires = (argc > 2) ? argv[2] : null;  
    var path = (argc > 3) ? argv[3] : null;  
    var domain = (argc > 4) ? argv[4] : null;  
    var secure = (argc > 5) ? argv[5] : false;  
    document.cookie = name + "=" + escape (value) + 
        ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
        ((path == null) ? "" : ("; path=" + path)) +  
        ((domain == null) ? "" : ("; domain=" + domain)) +    
        ((secure == true) ? "; secure" : "");
}

function DeleteCookie (name) {  
    var exp = new Date();  
    exp.setTime (exp.getTime() - 1);  
    var cval = GetCookie (name);  
    document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}


// exp benuttes i amt() og vispopop()
var exp = new Date(); 
exp.setTime(exp.getTime() + (expMinutes*60*1000));

function amt(){
    var count = GetCookie('count');
    if(count == null) {
        SetCookie('count','1');
        return 1;
    } else {
        var newcount = parseInt(count) + 1;
        DeleteCookie('count');
        SetCookie('count',newcount,exp);
        return count;
   }
}
function getCookieVal(offset) {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1)
    endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}

function vispopop() {
    var count = GetCookie('count');
    if (count == null) {
        count=1;
        SetCookie('count', count, exp);
         window.open(page, "folkebevpopop", windowprops);
    } else {
        count++;
             // var w=window.open(page, "folkebevpopop", windowprops);
        SetCookie('count', count, exp);
             // if (window.focus) w.focus;
  }
}