(function() {
var slideSpeed = 40;
var slideInterval = 0;
var currentWidth = 0;
var currentPage = null;
var currentDialog = null;
var currentHash = location.hash;
var hashPrefix = "#_";
var pageHistory = [];
var newPageCount = 0;
var checkTimer;
window.iui =
{
    showPage: function(page, backwards)
    {
        if (page)
        {
            if (currentDialog)
            {
                currentDialog.removeAttribute("selected");
                currentDialog = null;
            }
            if (hasClass(page, "dialog"))
                showDialog(page);
            else
            {
                var fromPage = currentPage;
                currentPage = page;

                if (fromPage){
                    setTimeout(slidePages, 0, fromPage, page, backwards);
                    scrollTo(0, 1);
                }else
                    updatePage(page, fromPage);
            }
        }
    },
    showPageById: function(pageId)
    {
        var page = $(pageId);
        if (page)
        {
            var index = pageHistory.indexOf(pageId);
            var backwards = index != -1;
            if (backwards)
                pageHistory.splice(index, pageHistory.length);

            iui.showPage(page, backwards);
        }
    },
    showPageByHref: function(href, args, method, replace, cb)
    {
        var req = new XMLHttpRequest();
        req.onerror = function()
        {
            if (cb)
                cb(false);
        };
        req.onreadystatechange = function()
        {
            if (req.readyState == 4)
            {
                if (replace)
                    replaceElementWithSource(replace, req.responseText);
                else
                {
                    // check for errors here
                    if(req.responseText && req.responseText.substr(0,1) == "0"){
                        $("ldg").removeAttribute("selected");
                        showMsg(req.responseText.substr(1));
                        return;
                    }
                    var frag = document.createElement("div");
                    frag.innerHTML = req.responseText;
                    iui.insertPages(frag.childNodes);
                }
                if (cb)
                    setTimeout(cb, 1000, true);
            }
        };
        if (args)
        {
            req.open(method || "GET", href, true);
            req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
            req.send(args.join("&"));
        }
        else
        {
            req.open(method || "GET", href, true);
            req.send(null);
        }
    },
    insertPages: function(nodes)
    {
        var targetPage;
        for (var i = 0; i < nodes.length; ++i)
        {
            var child = nodes[i];
            if (child.tagName && child.tagName.toLowerCase() == "script")
            {
                eval(child.innerHTML);
            }
            if (child.nodeType == 1)
            {
                if (!child.id)
                    child.id = "__" + (++newPageCount) + "__";
                var clone = $(child.id);
                if (clone)
                    clone.parentNode.replaceChild(child, clone);
                else
                    document.body.appendChild(child);
                if (child.getAttribute("selected") == "true" || !targetPage)
                    targetPage = child;
                --i;
            }
        }
        if (targetPage)
            iui.showPage(targetPage);
    },
    getSelectedPage: function()
    {
        for (var child = document.body.firstChild; child; child = child.nextSibling)
        {
            if (child.nodeType == 1 && child.getAttribute("selected") == "true")
                return child;
        }
    }
};
addEventListener("load", function(event)
{
    var page = iui.getSelectedPage();
    if (page)
        iui.showPage(page);

    setTimeout(preloadImages, 0);
    setTimeout(checkOrientAndLocation, 0);
    setTimeout(scrollTo, 0, 0, 1);
    checkTimer = setInterval(checkOrientAndLocation, 300);
}, false);
addEventListener("click", function(event)
{
    var link = findParent(event.target, "a");
    if (link)
    {
        unselect = function(){ link.removeAttribute("selected"); };
        if (link.href && link.hash && link.hash != "#")
        {
            link.setAttribute("selected", "true");
            iui.showPage($(link.hash.substr(1)));
            setTimeout(unselect, 500);
        }
        else if (link == $("backButton"))
            history.back();
        else if (link.getAttribute("type") == "submit"){
            submitForm(findParent(link, "form"));
        }
        else if (link.getAttribute("type") == "cancel")
            cancelDialog(findParent(link, "form"));
        else if (link.target == "_replace")
        {
            link.setAttribute("selected", "progress");
            iui.showPageByHref(link.href, null, null, link, unselect);
        }
        else if (!link.target)
        {
            link.setAttribute("selected", "progress");
            iui.showPageByHref(link.href, null, null, null, unselect);
        }
        else
            return;
        event.preventDefault();
    }
}, false);
addEventListener("click", function(event)
{
    var div = findParent(event.target, "div");
    if (div && hasClass(div, "toggle"))
    {
        div.setAttribute("toggled", div.getAttribute("toggled") != "true");
        event.preventDefault();
    }
}, true);
function checkOrientAndLocation()
{
    if (window.innerWidth != currentWidth)
    {
        currentWidth = window.innerWidth;
        var orient = currentWidth == 320 ? "profile" : "landscape";
        document.body.setAttribute("orient", orient);
        setTimeout(scrollTo, 100, 0, 1);
    }
    if (location.hash != currentHash)
    {
        var pageId = location.hash.substr(hashPrefix.length);
        iui.showPageById(pageId);
        scrollTo(0, 1);
    }
}
function showDialog(page)
{
    currentDialog = page;
    page.setAttribute("selected", "true");
    if (hasClass(page, "dialog") && !page.target)
        showForm(page);
}
function showForm(form)
{
    form.onsubmit = function(event)
    {
        event.preventDefault();
        submitForm(form);
    };
    form.onclick = function(event)
    {
        if (event.target == form && hasClass(form, "dialog"))
            cancelDialog(form);
    };
}
function cancelDialog(form)
{
    form.removeAttribute("selected");
}
function updatePage(page, fromPage)
{
    if (!page.id)
        page.id = "__" + (++newPageCount) + "__";
    location.href = currentHash = hashPrefix + page.id;
    pageHistory.push(page.id);
    var pageTitle = $("pageTitle");
    if (page.title)
    {
        var t = page.title.split('---');
        pageTitle.innerHTML = t[0];
        //pageTitle.innerHTML = page.title;
        if(page.id)
        {
            cssjs("a",$("updateButton"),"hidden");
            switch(page.id){
            case "fst":
            case "fsc":
            case "hotel":
                break;
            case "legs":
                cssjs("r",$("updateButton"),"hidden");
                break;
            case "hdet":
                break;
            default:
                $("updateButton").removeEventListener("click",function(){getDetail();return false;},false);
            }
        }
    }
    if (page.localName.toLowerCase() == "form" && !page.target)
        showForm(page);
    var backButton = $("backButton");
    if (backButton)
    {
        var prevPage = $(pageHistory[pageHistory.length-2]);
        if (prevPage && !page.getAttribute("hideBackButton"))
        {
            backButton.style.display = "inline";
            var p = prevPage.title ? prevPage.title.split('---') : ["Back"];
            backButton.innerHTML = p[p.length-1];
            //backButton.innerHTML = prevPage.title ? prevPage.title : "Back";
        }
        else
            backButton.style.display = "none";
    }
}
function slidePages(fromPage, toPage, backwards)
{
    var axis = (backwards ? fromPage : toPage).getAttribute("axis");
    if (axis == "y")
        (backwards ? fromPage : toPage).style.top = "100%";
    else
        toPage.style.left = "100%";
    toPage.setAttribute("selected", "true");
//    scrollTo(0, 1);
    clearInterval(checkTimer);
    var percent = 100;
    slide();
    var timer = setInterval(slide, slideInterval);
    function slide()
    {
        percent -= slideSpeed;
        if (percent <= 0)
        {
            percent = 0;
            if (!hasClass(toPage, "dialog"))
                fromPage.removeAttribute("selected");
            clearInterval(timer);
            checkTimer = setInterval(checkOrientAndLocation, 300);
            setTimeout(updatePage, 0, toPage, fromPage);
            $("ldg").removeAttribute("selected");
        }
        if (axis == "y")
        {
            backwards
                ? fromPage.style.top = (100-percent) + "%"
                : toPage.style.top = percent + "%";
        }
        else
        {
            fromPage.style.left = (backwards ? (100-percent) : (percent-100)) + "%";
            toPage.style.left = (backwards ? -percent : percent) + "%";
        }
    }
}
function preloadImages()
{
    var preloader = document.createElement("div");
    preloader.id = "preloader";
    document.body.appendChild(preloader);
}
function submitForm(form)
{
/*
    scrollTo(0,1);
    if((form.id && form.id !="cccl") || !form.id) $("ldg").setAttribute("selected","true");
*/
    var f = form.stype || form.hths;
    if(f){cssjs("r",f,"hidden");f.focus();cssjs("a",f,"hidden");}
    iui.showPageByHref(form.action || "POST", encodeForm(form), form.method);
}
function encodeForm(form)
{
    function encode(inputs)
    {
        for (var i = 0; i < inputs.length; ++i)
        {
            if (inputs[i].name)
            {
                if( (inputs[i].type != 'checkbox' && inputs[i].type != 'radio')
                    || ((inputs[i].type == 'checkbox' || inputs[i].type == 'radio') && inputs[i].checked) )
                {
                    //args.push(inputs[i].name + "=" + escape(inputs[i].value));
                    // Until the encoding problem is figured out:
                    v = inputs[i].value.replace(/\s+/g,"%20");
                    args.push(inputs[i].name + "=" + encodeURIComponent(v));
                }
                //args.push(inputs[i].name + "=" + escape(inputs[i].value));
            }
        }
    }
    var args = [];
    encode(form.getElementsByTagName("input"));
    encode(form.getElementsByTagName("select"));
    return args;
}
function hasClass(self, name)
{
    var re = new RegExp("(^|\\s)"+name+"($|\\s)");
    return re.exec(self.getAttribute("class")) != null;
}
function replaceElementWithSource(replace, source)
{
    var page = replace.parentNode;
    var parent = replace;
    while (page.parentNode != document.body)
    {
        page = page.parentNode;
        parent = parent.parentNode;
    }
    var frag = document.createElement(parent.localName);
    frag.innerHTML = source;
    page.removeChild(parent);
    while (frag.firstChild)
        page.appendChild(frag.firstChild);
}
function ddd() { console.log.apply(console, arguments); }
})();