var xmlMenu;
var activeTopItem = 0;
var activeBottomItem = 0;
var currentLink = "";
function loadXMLDoc(xmlMenuFile) {
    if (document.implementation && document.implementation.createDocument) {
        // this is the W3C DOM way, supported so far only in NN6
        xmlMenu = document.implementation.createDocument("", "thexmlMenu", null);
    } else if (typeof ActiveXObject != "undefined") {
        // make sure real object is supported (sorry, IE5/Mac)
        if (document.getElementById("msxml").async) {
            xmlMenu = new ActiveXObject("Msxml.DOMDocument");
        }
    }
    if (xmlMenu && typeof xmlMenu.load != "undefined") {
        // Netscape 6+ needs this delay for loading; start two-stage sequence
        setTimeout("continueLoad('" + xmlMenuFile + "')", 50);
    } else {
/*        var reply = confirm("This page requires a browser with XML support. Sorry.");
        if (reply) {
            history.back();*/
        }
    }
}

function continueLoad(xmlMenuFile) {
    xmlMenu.load(escape(xmlMenuFile));
    // IE needs this delay to let loading complete before reading its content
    setTimeout("finishInit()", 200);
}

function getTopMenu()
{
    var topMenuItemsQ = xmlMenu.getElementsByTagName("topMenu").length;
    if (activeTopItem > (topMenuItemsQ - 1)) activeTopItem = 0;
    var menuHTMLstring = "<table border='0' align='left' cellpadding='0' cellspacing='0' summary='header' bgcolor='#336699' width='100%'><tr height='23'>";
    //Сборка верхней менюшки
    for(i = 0; i < topMenuItemsQ; i++)
    {
        //прорисовка левого края
        if (i==0)
        {
            if (i==activeTopItem)
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuLeftEndActive'>&nbsp;</td>";
            }
            else
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuLeftEndNotActive'>&nbsp;</td>";
            }
        }
        
        //прорисовка середины
        if (i==activeTopItem) 
        {
            menuHTMLstring = menuHTMLstring + "<td width='70' class='topmenuActive'>";
            currentLink = xmlMenu.getElementsByTagName("topMenu")[i].getAttribute("link");
        }
        else
        {
            menuHTMLstring = menuHTMLstring + "<td width='70' class='topmenuNotActive'>";
        }
        menuHTMLstring = menuHTMLstring + "<a class='whiteLink' href='" + xmlMenu.getElementsByTagName("topMenu")[i].getAttribute("link") + "'>" + xmlMenu.getElementsByTagName("topMenu")[i].getAttribute("text") + "</a></td>";
        
        //прорисовка правого края
        if (i==(topMenuItemsQ - 1))
        {
            if (i==activeTopItem)
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuRightEndActive'>&nbsp;</td>";
            }
            else
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuRightEndNotActive'>&nbsp;</td>";
            }
        }
        else
        {
            if (i == activeTopItem)
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuRightActive'>&nbsp;</td>";
            }
            if (i == (activeTopItem - 1))
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuRightNotActive'>&nbsp;</td>";
            }
            if ((i != activeTopItem) && (i != (activeTopItem - 1)))
            {
                menuHTMLstring = menuHTMLstring + "<td width='23' class='topmenuRightNotActive2NotActive'>&nbsp;</td>";
            }
        }
    }
    menuHTMLstring = menuHTMLstring + "<td class='topmenuRight' align='right'>";
    //menuHTMLstring = menuHTMLstring + "<a href='en_" + currentLink.slice(3,currentLink.length) + "'><img src='imgs/gbrFlagSmall.png' border='0' />&nbsp;english</a>&nbsp;&nbsp;";
    //menuHTMLstring = menuHTMLstring + "<a href='ru_" + currentLink.slice(3,currentLink.length) + "'><img src='imgs/ruFlagSmall.png' border='0' />&nbsp;русский</a>&nbsp;";
    menuHTMLstring = menuHTMLstring + "&nbsp;</td>";
    menuHTMLstring = menuHTMLstring + "</tr></table>";
    return menuHTMLstring;
}

function getBottomMenu()
{
    var rootItem = xmlMenu.getElementsByTagName("topMenu")[activeTopItem];
    var subItemsLen = rootItem.getElementsByTagName("bottomMenu").length;
    var menuHTMLstring = "<table border='0' cellpadding='0' cellspacing='0'>";
    if (subItemsLen > 0)
    {
        menuHTMLstring += "<tr height='32'><td class='bottMenuBG' width='30'>&nbsp;</td>";
        for(i=0; i<subItemsLen; i++)
        {
            if (i == activeBottomItem) 
            {
                menuHTMLstring += "<td class='bottMenuActBG'>&nbsp;&nbsp;";
            }
            else
            {
                menuHTMLstring += "<td class='bottMenuNActBG'>&nbsp;&nbsp;";
            }
            menuHTMLstring += "<a class='linkOrange' href='" + rootItem.getElementsByTagName("bottomMenu")[i].getAttribute("link") + "'>" + rootItem.getElementsByTagName("bottomMenu")[i].getAttribute("text") + "</a>&nbsp;&nbsp;</td>";
            menuHTMLstring += "<td class='bottMenuBG'>&nbsp;<td>";
        }
        
        menuHTMLstring += "</tr>";
    }
    else
    {
        menuHTMLstring += "<tr height='32'><td class='bottMenuBG' width='100%'>&nbsp;</td></tr>";
    }
    menuHTMLstring += "</table>";
    return menuHTMLstring;
}

function getHeader()
{
    var headerString = "<table border='0' align='left' cellpadding='0' cellspacing='0' summary='header' bgcolor='#336699' width='100%'>";
    headerString += "<tr height='92'><td align='left' class='header_" + xmlMenu.getElementsByTagName("header")[0].getAttribute("lang") + "' width='457px'>&nbsp;</td>";
    headerString += "<td align='left' class='headerBGEmpty'>&nbsp;</td></tr></table>"
    return headerString;
}

function finishInit() {
        var topMenu = getTopMenu();
        var bottomMenu = getBottomMenu();
        var header = getHeader();

        document.getElementById("header").innerHTML = header;
        document.getElementById("topMenu").innerHTML = topMenu;
        document.getElementById("bottomMenu").innerHTML = bottomMenu;
}

// initialize first time -- invoked onload
function initXML(xmlMenuFile) {
    loadXMLDoc(xmlMenuFile);
}