function kieg_ar_nov(ar){
    var elem = document.getElementById("kiegossz_ar");
    var ertek = Math.round(parseFloat(elem.value, 10), 2);
    elem.value = Math.round(ertek + ar, 2);
}
function kieg_ar_csok(ar) {
    var elem = document.getElementById("kiegossz_ar");
    var ertek = Math.round(parseFloat(elem.value, 10), 2);
    elem.value = Math.round(ertek - ar, 2);
}
function count_cart(mod, id) {
    var elem = document.getElementById("" + id);
    var ertek = parseInt(elem.value, 10);
    if (mod == 0) {
	if (ertek > 0) {
	    ertek = ertek-1;
	}
    }
    else if (mod == 1) {
	ertek = ertek+1;
    }
    elem.value = ertek;
}
function count_cart_ajax(mod, id, temp_id) {
    var elem = document.getElementById("" + id);
    var ertek = parseInt(elem.value, 10);

    if (mod == 0) {
    	if (ertek > 0) {
    	    ertek = ertek-1;
	    if (ertek == 0) {
	    	cart_del(temp_id);
	    }
	    else {
		cart_count(temp_id, ertek);
		cart_price();
	    }
	}
    }
    else if (mod == 1) {
	ertek = ertek+1;
	cart_count(temp_id, ertek);
	cart_price();
    }
    elem.value = ertek;
}
function opensizedwin(link,w, h)  {
    popupWinex = window.open(link,'_blank','toolbar=0, resizable=0, status=0, scrollbars=no, width=' + w + ', height=' + h + ', left=' + ((screen.width/2)-w/2) + ', top=' + ((screen.height/2)-h/2));
    popupWinex.document.title = 'Tóváros Pizzéria Székesfehérvár';
}