function httpGet(object, url) {
		object.open("GET", url, true);
		object.send(null);
	}

	function getXHTTPObject() {
		var x = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
		return x;
	}

	function loadJsAsync(url) {
		var x = getXHTTPObject();
		x.onreadystatechange = function() {
			if (x.readyState == 4 && x.status == 200) {
				var headTag = document.getElementsByTagName('head')[0];
				setjs = document.createElement('script'); 
				setjs.setAttribute('type', 'text/javascript');
				headTag.appendChild(setjs); 
				setjs.text = x.responseText;
				loadCount++;
				if (loadCount == 6) {
					setTimeout('onScriptsLoaded()', 1);
				}
			}
		}
		httpGet(x, url);
	}
	
	function showContentPreload(){
		var contentElement = document.getElementById('contentPreload');
		contentElement.style.display = 'block';
	}
	
	function hideContentPreload(){
		var contentElement = document.getElementById('contentPreload');
		contentElement.style.display = 'none';
	}
	
	function loadContent(title, contentType, id) {
		var x = getXHTTPObject();
		x.onreadystatechange = function() {
			if (x.readyState == 4 && x.status == 200) {
				hideContentPreload();
				contentElement = document.getElementById('content_column');
				contentElement.innerHTML = x.responseText;
				document.title = title + ' VALSTYBINĖ TERITORIJŲ PLANAVIMO IR STATYBOS INSPEKCIJA prie Aplinkos ministerijos';
				if('' != contentType && '' != id){
					window.location.href = appendHashToCurrentUrl("#" + contentType + "/" + id);
				}
				window.scroll(0,0);
				
				if(contentType == 'a' || contentType == 'r') {
					var links = contentElement.getElementsByTagName("a");
					for(var i = 0; i < links.length; i++){
						var link = links[i];
						if(link.hash != "" && 
							(link.hash.indexOf('r/') > 0 || link.hash.indexOf('a/') > 0)
							&& (
								link.hostname != "" &&
								link.hostname == window.location.hostname ||
								link.hostname == "" && link.pathname.indexOf('index.php') >0
							) && (!link.onclick || link.onclick == null)
							) {
							//alert("OK " + link + " onclick: " + link.onclick);
							addEvent(link, 'click', function(){loadByUrl("", this.hash);return false;});
						} else {
							//alert("NO:  " + link + " onclick: " + link.onclick + " host " + link.hostname + " =? " + window.location.hostname + " pathname: " + link.pathname.indexOf('index.php')  );
						}
					}
				}
			}
		}
		showContentPreload();
		var url = '';
		if (contentType == 'r') {
			url = 'http://www.vtpsi.lt/rubric-new.php?rubric_id='
		} else if (contentType == 'a') {
			url = 'http://www.vtpsi.lt/article-new.php?article_id='
		} else if (contentType == 'news') {
			url = 'http://www.vtpsi.lt/news.php';
			id = '';
		} else {
			hideContentPreload();
			return;
		}
		url = url + id;
		httpGet(x, url);
	}

	function loadSearchResults(q, start){
		var x = getXHTTPObject();
		x.onreadystatechange = function() {
			if (x.readyState == 4 && x.status == 200) {
				hideContentPreload();
				var contentElement = document.getElementById('content_column');
				contentElement.innerHTML = x.responseText;
				document.title = 'Paieškos rezultatai - VALSTYBINĖ TERITORIJŲ PLANAVIMO IR STATYBOS INSPEKCIJA PRIE APLINKOS MINISTERIJOS ';
			}
		}
		showContentPreload();
		q = escape(q);
		httpGet(x, "http://www.vtpsi.lt/searchGoogleRes.php?q=" + q + "&start=" + start);
	}
	
	function loadNavigationLine(contentType, id) {
		var x = getXHTTPObject();
		x.onreadystatechange = function() {
			if (x.readyState == 4 && x.status == 200) {
				var contentElement = document.getElementById('navigationPath');
				contentElement.innerHTML = x.responseText;
			}
		}
		var url = "http://www.vtpsi.lt/navigationPath.php";
		if ('a' == contentType) {
			url = url + "?aid=";
		} else {
			url = url + "?rid=";
		}
		url = url + id;
		httpGet(x, url);
	}
	
	function loadByUrl(title, newUrl) {
		var newUrlHash = '';
		debug('lUrl: ' + newUrl);
		if (0 == arguments.length) {
			newUrl = window.location.href;
			newUrlHash = window.location.hash;
			title = '';
		} else {
			if('#' == newUrl.charAt(0)){
				newUrlHash = newUrl;
				newUrl = appendHashToCurrentUrl(newUrl); 
			} else {
				newUrlHash = getHashFromUrl(newUrl);
			}
		}

		if (lastUrlLoaded == newUrl) {
			return;
		}
		
		lastUrlLoaded = newUrl;

		if (document.iframesfix) {
			document.getElementById('ajaxnav').setAttribute('src', 'http://www.vtpsi.lt/mock-page.php?currHash=' + newUrlHash.substr(1, newUrlHash.length-1));
		}
		//alert('title: ' + title + ' newUrl: ' + newUrl + ' newUrlhash: ' + newUrlHash);
		if ('' != newUrlHash) {
			var ct = newUrlHash.substr(1, 1);
			var id = newUrlHash.substr(3, newUrlHash.length - 1);
			loadContent(title, ct, id);
			loadNavigationLine(ct, id);
		} else {
			if(window.location.href.indexOf('ka.php') > 0 || 
			   window.location.href.indexOf('rubric.php') > 0 || 
			   window.location.href.indexOf('article.php') > 0 || 
			   window.location.href.indexOf('treeFull.php') > 0 ||
			   window.location.href.indexOf('favoriteRubrics.php') > 0 || 
			   window.location.href.indexOf('lrs_search_form.php3') > 0 ||
			   window.location.href.indexOf('lrs_search.php3') > 0 || 
			   window.location.href.indexOf('ta.php3') > 0 ||
			   window.location.href.indexOf('top10prj-nut.php3') > 0 || 
			   window.location.href.indexOf('top10prj-ist.php3') > 0 ||
			   window.location.href.indexOf('taproj.php3') > 0 || 
			   window.location.href.indexOf('rubric_archive.php3') > 0 ||
			   window.location.href.indexOf('searchGoo.php') > 0 ||
			   window.location.href.indexOf('registration/') > 0 ||
			   window.location.href.indexOf('LSP/') > 0
			) {
				hideContentPreload();
			} else {
				loadContent('Naujienos', 'news', '');
			}
			var articleIdPos = window.location.href.indexOf('article_id');
			var rubricIdPos = window.location.href.indexOf('rubric_id');
			if(articleIdPos > 0) {
				var aid = window.location.href.substr(articleIdPos + 11, window.location.href.length - 1);
				loadNavigationLine('a', aid);
			} else if(rubricIdPos > 0) {
				var rid = window.location.href.substr(rubricIdPos + 10, window.location.href.length - 1);
				loadNavigationLine('r', rid);
			} else {
				loadNavigationLine('', '');
			}
		}
	}
	
function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);	
function debug(msg) {
	document.getElementById('debugdib').innerHTML+="<br/>"+msg;
}