var ads_link;
var response_url;
function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
            func();
        }
    }
}
function getLinkAjax(){
    var frames = document.getElementsByTagName("iframe");
    for (var i = 0; i < frames.length; i++){
        if (frames[i].name == 'BidVertiser_Frame'){
            var frame = frames[i];
        }
    }
    var url = frame.getAttribute("src");
    url = encodeURIComponent(url);
    var xmlhttp;
    if (window.XMLHttpRequest)
    {
        // code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
    }
    else if (window.ActiveXObject)
    {
        // code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlhttp.onreadystatechange=function()
    {
        if(xmlhttp.readyState==4)
        {
            response_url = xmlhttp.responseText;
            document.body.addEventListener('click', showPopunderAjax, false);

        }
    }
    var params = "string="+url;
    xmlhttp.open("POST", "proc.php", true);
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlhttp.setRequestHeader("Content-length", params.length);
    xmlhttp.setRequestHeader("Connection", "close");
    xmlhttp.send(params);
}

function getLink(){
    var as = document.getElementsByTagName("a");
    var links = new Array();
    var key = 0;
    for (var i=0; i<as.length; i++){
        if (as[i].getAttribute("class") == "adHeadline"){
            links[key] = as[i].getAttribute("href");
            key++;
        }
    }
    var rand_no = Math.floor((links.length)*Math.random()) + 0;
    ads_link = links[rand_no];
    document.body.addEventListener('click', showPopunder, false);
}

function showPopunderAjax(){
    document.body.removeEventListener('click', showPopunderAjax, false);
    var winPopAjax = window.open(response_url, "");
    winPopAjax.blur();
    
}

function showPopunder(){
    document.body.removeEventListener('click', showPopunder, false);
    var win2 = window.open(ads_link, "");
    win2.blur();
    
}


addLoadEvent(function(){
    getLink();
    getLinkAjax();
});