addLoadEvent(function() {
	var myFolder = "/cstat/images/design/";
	var myImages = new Array("/assets/galerie/w_banner_vyri.png", "/assets/galerie/w_poukazy_1.png");
	var myURL = new Array("http://obchod.portal.cz/produkt/vyri-nesyckuji/", "http://www.portal.cz/knihy/vernostni-program/ ");
	var myTitle = document.getElementsByTagName('title')[0].innerHTML.split(" | ");
	var myRandom = Math.round(Math.random()*(myImages.length-1));

	for (i in myTitle) {
		myTitle[i] = trimChars(myTitle[i], "\r\n");
	}

	if ((myTitle[1] == "Časopisy") && (myTitle[2] == "Psychologie dnes")) {
		document.getElementById('headerBg').src = myFolder+"bg_header_pd.jpg";
		document.getElementById('action').innerHTML = document.getElementById('headerBgA').innerHTML;
	}
	else if ((myTitle[1] == "Časopisy") && (myTitle[2] == "Děti a my")) {
		document.getElementById('headerBg').src = myFolder+"bg_header_dm.jpg";
		document.getElementById('action').innerHTML = document.getElementById('headerBgA').innerHTML;
	}
	else if ((myTitle[1] == "Časopisy") && (myTitle[2] == "Rodina a škola")) {
		document.getElementById('headerBg').src = myFolder+"bg_header_rs.jpg";
		document.getElementById('action').innerHTML = document.getElementById('headerBgA').innerHTML;
	}
	else if ((myTitle[1] == "Časopisy") && (myTitle[2] == "Informatorium 3-8")) {
		document.getElementById('headerBg').src = myFolder+"bg_header_in.jpg";
		document.getElementById('action').innerHTML = document.getElementById('headerBgA').innerHTML;
	}
	else if (myTitle[1] == "Časopisy" && (!(myTitle[2]) || (myTitle[2] != ""))) {
		document.getElementById('headerBg').src = myFolder+"bg_header_ca.jpg";
		document.getElementById('action').innerHTML = document.getElementById('headerBgA').innerHTML;
	}
	else {
		document.getElementById('headerBg').src = myImages[myRandom];
		if (myURL[myRandom] != "") { document.getElementById('headerBgA').href = myURL[myRandom]; } else { document.getElementById('action').innerHTML = document.getElementById('headerBgA').innerHTML; }
	}

	//varianta pro vymenu obrazku prostrednitvim atributu src tagu img
	//document.getElementById('headerBg').src = myFolder+myImages[Math.round(Math.random()*(myImages.length-1))];
	//varianta pro vymenu obrazku prostrednictvim obrazku na pozadi elementu stylu
	//document.getElementById('header').style.backgroundImage = 'url('+myFolder+myImages[Math.round(Math.random()*(myImages.length-1))]+')';
	//a pripadna automaticka zmena po urcitem case pomoci setInterval()
	//setInterval("document.getElementById('header').style.backgroundImage = 'url('+myFolder+myImages[Math.round(Math.random()*(myImages.length-1))]+')';", 5*1000);
});