function popup(adress,width,height) {
    var arg = arguments.length;
    var x = window.open(adress, "", "width="+width+",height="+height);
    if(x) return false;
    else return true;
}

function change(img,status) {
    var hoverImg = img.src.replace('.jpg','');
    if(status) {
        hoverImg = hoverImg+'-tn.jpg';
    }
    else {
        hoverImg = hoverImg.replace('-tn','.jpg');
    }
    img.src=hoverImg;
}

function popup_booking() {
    window.open('http://absolut.netwrs.com/core.php', 'Book', 'width=580, height=420,scrollbars=yes,resizable=yes,top=160,left=100');
}

var dom = document.getElementById ? true : false;
var ns4 = document.layers ? true : false;
var ie4 = document.all ? true : false;

var layTopT = new Array(-200,-200);
var layTopN = new Array('sloupec1menu','sloupec2menu');

var tm;
var actualLayer = '';

function changeTopLayer(visibleLay) {
    for(i=0;i<layTopT.length;i++) {
        layTopT[i] = -200;
    }
    if (visibleLay!=99) { // 99 = closePopup
        layTopT[visibleLay] = 261;
    }
    moveTopLayer();
}

function moveTopLayer() {
    if (dom) {
        for(i=0;i<layTopT.length;i++) {
            document.getElementById(layTopN[i]).style.top = layTopT[i] + "px";
        }
    }
    else if (ns4) {
        for(i=0;i<layTopT.length;i++) {
            document.layers['page'].layers[layTopN[i]].top = layTopT[i];
        }
    }
    else if (ie4) {
        for(i=0;i<layTopT.length;i++) {
            document.all[layTopN[i]].style.top = layTopT[i];
        }
    }
}

function closeLay(evn) {
    if (ns4) {
        changeTopLayer(99);
    } else if (ie4) {
        if ((window.event.toElement) && (window.event.toElement.className != "childLay")) changeTopLayer(99);
    } else if (dom) {
        if ((evn.relatedTarget) && (evn.relatedTarget.className != "childLay")) {
            if (evn.relatedTarget.parentNode.className == "childLay") { // add in last version for text based menu
            } else {
                changeTopLayer(99);
            }
        }
    }
}