function ocw(href,x,y) { //OpenCenteredWindow
	var vyska = screen.height;
	var sirka = screen.width;
	var levy = (sirka - x)/2;
	var horni = (vyska - y)/2;
	return !window.open(href,'_blank','width='+x+',height='+y+',left='+levy+',top='+horni+',scrollbars=yes');
}

function otevriVyhrajHrisnouVeceri() {
	ocw('vyhraj-hrisnou-veceri.php',720,500);
}

function otevriSmsSoutez() {
	ocw('sms-soutez.php',720,550);
}

function otevriHrisneDomy() {
	ocw('hrisne-domy.php',720,500);
}

function otevriPravidlaSmsSouteze() {
	ocw ('pravidla-sms-souteze.php',720,500);
}

function otevriPodrobnaPravidla() {
	return ocw('podrobna-pravidla.php',720,500);
}

function otevriRestauraci() {
	return ocw('restaurace.php',720,500);
}

function otevriRestauraci2() {
	ocw('restaurace.php',720,500);
}

function otevriKupon() {
	return ocw('kupon.php',400,500);
}