//(function() {
var animateX = -20;
var animateInterval = 24;
var currentPage = null;
var currentDialog = null;
var currentWidth = 0;
var currentHash = location.hash;
var hashPrefix = "#_";
var pageHistory = [];
addEventListener("load", function(event)
{
    var body = document.getElementsByTagName("body")[0];
    for (var child = body.firstChild; child; child = child.nextSibling)
    {
        if (child.nodeType == 1 && child.getAttribute("selected") == "true")
        {
            showPage(child);
            break;
        }
    }
	loadHTMLs(); 
    setInterval(checkOrientAndLocation, 300);
    setTimeout(hideAddress, 100);
}, false);

function hideAddress() {

	window.scrollTo(0, 1); // pan to the bottom, hides the location bar
}

addEventListener("click", function(event)
{  
   event.preventDefault();

    var link = event.target;
	
    while (link && link.localName && link.localName.toLowerCase() != "a")
        link = link.parentNode;
   
    if (link && link.hash)
    {
        
		var page = document.getElementById(link.hash.substr(1));
	 
        showPage(page);
		if(link.hash.substr(1).indexOf("DO")==0) eval(link.hash.substr(1)+"();");
    }
}, true);

function checkOrientAndLocation()
{ 
    if (window.innerWidth != currentWidth)
    {
        currentWidth = window.innerWidth;

        var orient = innerWidth == 320 ? "portrait" : "landscape";
        document.body.setAttribute("orient", orient);
		setTimeout(hideAddress, 100);

	}
  
    if (location.hash != currentHash)
    {
        
     
        var pageId = location.hash.substr(hashPrefix.length);
        var page = document.getElementById(pageId);
		currentHash = location.hash;
		if (pageId.indexOf("DO")==0)  {eval(pageId+"()"); return}
		
        if (page)
        {
            var index = pageHistory.indexOf(pageId);
            var backwards = index != -1;
            if (backwards) {
                pageHistory.splice(index, pageHistory.length);
             }
            showPage(page, backwards);
        }
    }
}

function showPage(page, backwards)
{
   if(page == null) { return;} 
  if (currentPage==page) return;
         
        location.href = currentHash = hashPrefix + page.id;
        pageHistory.push(page.id);
        var fromPage = currentPage;
        currentPage = page; 
        checkPage(currentPage);
        if(fromPage) 
         setTimeout(swipePage, 0, fromPage, page, backwards);
         
    
}

function swipePage(fromPage, toPage, backwards)
{        
    toPage.style.left = "100%";
    toPage.setAttribute("selected", "true");
    scrollTo(0, 1);

    var percent = 100;
    var timer = setInterval(function()
    {
        percent += animateX;
        if (percent <= 0)
        {
            percent = 0;
            fromPage.removeAttribute("selected");
            clearInterval(timer);
        }

        fromPage.style.left = (backwards ? (100-percent) : (percent-100)) + "%"; 
        toPage.style.left = (backwards ? -percent : percent) + "%"; 
    }, animateInterval);
}


//})();