function openGalleryEntry(nr, width, height, slideshow) {
	var docURL = document.URL;
	var pos = docURL.indexOf("?OpenDocument");
	if(pos != "-1") {
		docURL = docURL.substring(0, pos);
	}
	var entryURL = docURL + "?OpenDocument&nr=" + nr;
	if (slideshow) entryURL += "&slideshow";
	var windowWidth =  width + 30;
	var windowHeight = height + 150;
	if (windowWidth < 404) windowWidth = 404;
	var windowX = (screen.width - windowWidth) / 2;
	var windowY = (screen.height - windowHeight) / 2;
	var parameters = "width=" + windowWidth + ", height=" + windowHeight + ", left=" + windowX + ", top=" + windowY + ", location=no, status=no, toolbar=no, menubar=no, dependent=yes";
	var entryWindow = window.open(entryURL, "entry", parameters);
	if (entryWindow) entryWindow.focus();		
}

function openGalleryEntryEdit(nr, width, height, slideshow) {
	var entryURL= "web/" + refUNID + "?OpenDocument&nr=" + nr;	
	var windowWidth =  width + 20;
	var windowHeight = height + 150;
	var windowX = (screen.width - windowWidth) / 2;
	var windowY = (screen.height - windowHeight) / 2;
	var parameters = "width=" + windowWidth + ", height=" + windowHeight + ", left=" + windowX + ", top=" + windowY + ", location=no, status=no, toolbar=no, menubar=no, dependent=yes";
	var entryWindow = window.open(entryURL, "entry", parameters);
	if(entryWindow) entryWindow.focus();	
}


function openZip(title) {
	var docURL = document.URL;
	var pos = docURL.indexOf("?OpenDocument");
	if(pos != "-1") {
		docURL = docURL.substring(0, pos);
	}
	var entryURL = docURL + "/$file/" + title;
	window.location.href = entryURL;
}


function downloadOriginalImage() {
	var docURL = document.URL;
	var unid = middleStr(docURL + "?OpenDocument", "/web/", "?OpenDocument");
	var dbPath = leftStr(rightStr(rightStr(docURL, "http://"), "/"), ".nsf") + ".nsf";
	document.location.href = "/servlet/GetNotesAttachment?unid=" + unid + "&filename=" + g_fileName + "&dbpath=" + dbPath;
}

function resizeWindow(width, height) {
	var windowWidth = width + 30;
	if (windowWidth < 404) windowWidth = 404;
	var windowHeight = height + 150;
	window.resizeTo(windowWidth, windowHeight);	
}

function resizeMoveWindow(width, height) {
	var windowWidth =  width + 30;
	if (windowWidth < 404) windowWidth = 404;
	var windowHeight = height + 150;
	if(document.images["imgend"].offsetTop) {
		while(document.images["imgend"].offsetTop + 50 > windowHeight) {
			windowHeight += 10;
		}
	}
	var windowX = (screen.width - windowWidth) / 2;
	var windowY = (screen.height - windowHeight) / 2;
	window.moveTo(windowX, windowY);	
	window.resizeTo(windowWidth, windowHeight);	
}


//Slideshow
var slideshowTimer;
var isSlideshowRunning;
var slideshowNextURL;
var beginNr;
var prevNr;
var nextNr;
var endNr;
var slideshowTimeout;

function galleryGoto(dest) {
	switch (dest) {
	case "begin":
		nr = beginNr;
		break;
	case "prev":
		nr = prevNr;
		break;
	case "next":
		nr = nextNr;
		break;
	case "end":
		nr = endNr;
		break;
	}

	var docURL = document.URL;
	var pos = docURL.indexOf("&nr");
	if(pos != "-1") {
		docURL = docURL.substring(0, pos);
	}
	var entryURL = docURL + "&nr=" + nr;	
	self.location.href = entryURL;
}

function slideshowNext() {
	var docURL = document.URL;
	var pos = docURL.indexOf("&nr");
	if(pos != "-1") {
		docURL = docURL.substring(0, pos);
	}
	var entryURL = docURL + "&nr=" + nextNr +"&slideshow";
	if(nextNr != '') self.location.href = entryURL;	
}

function continueSlideshow() {
		slideshowTimer = window.setTimeout("slideshowNext()", slideshowTimeout);
}

function startStopSlideshow() {
	if(isSlideshowRunning) {
		window.clearTimeout(slideshowTimer);
		document.getElementById("startstop").innerHTML = startLabel;
	}
	else {	
		slideshowTimer = window.setTimeout("slideshowNext()", slideshowTimeout);
		document.getElementById("startstop").innerHTML = stopLabel;
	}
	isSlideshowRunning = !isSlideshowRunning;
}

function startSlideshow() {
	openGalleryEntry(1, 640, 480, true);
}


/************************************************************/
var g_isSlideshowRunning = false;
var g_slideshowTimer;
//var g_slideshowTimeout;
var g_imgCurrent;
var g_imgBegin;
var g_imgPrev;
var g_imgNext;
var g_imgEnd;	
var g_slideSrc;
var g_originalSrc;
var g_unid;
var g_fileName;
var g_slideWidth;
var g_slideHeight;
var g_slideCaption;
var g_slideNr;
var g_slideCount;
var g_showAtOnce;
var g_isNextImageLoaded;  //true, when image is loaded, false, otherwise, is set by preloader image

function getCachePreventTime() {
	 var now = new Date();
	return "&rand=" + now.getTime() + escape( Math.round( Math.random() * 10000 ) );
}

function getNodeValue(obj, tag) {
	if (obj.getElementsByTagName(tag)[0].firstChild)
		return obj.getElementsByTagName(tag)[0].firstChild.nodeValue;
	else
		return "&nbsp;";
}


//is set by preloader image, when it is loaded, with onload
function setNextImageIsLoaded() {
	//debugAppend('fertig: ' + document.getElementById("galleryimage").src);
	g_isNextImageLoaded = true;	
}


//Ajax 
var xmlHttp = null;
function createXMLHttpRequest() { 
	if (xmlHttp) xmlHttp.abort();
	xmlHttp = null;
	/*if (window.ActiveXObject) { 	
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); 
	}
	else if (window.XMLHttpRequest) { 
		
		xmlHttp = new XMLHttpRequest(); 
	}
	
	var req = false;*/
  	
	if(window.XMLHttpRequest){
		xmlHttp = new XMLHttpRequest();
		
		if(xmlHttp.overrideMimeType){ xmlHttp.overrideMimeType('text/xml'); }
	} 
	else if(window.ActiveXObject){
		try{ xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); }
		catch(e){
			try{ xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); }
			catch(e){}
		}
	}
}





function openImageGalleryEntry(imgNr) {	
	g_imgCurrent = imgNr;
	var docURL = document.URL;
	var pos = docURL.indexOf("?OpenDocument");
	if(pos != -1) {
		docURL = docURL.substring(0, pos);
	}
	
	var entryURL;	
	if (docURL.indexOf("/web/") != -1) entryURL = replStr(docURL, "/web/", "/webimagegalleryentryxml/") + "?OpenDocument&img=" + imgNr;
	else entryURL = replStr(docURL, "/0/", "/webimagegalleryentryxml/") + "?OpenDocument&img=" + imgNr;

	getGalleryEntryXML(entryURL);
}


var incarnationCounter = 0;
//open gallery entry for next image, when current one is loaded
function openImageGalleryEntryWhenLoaded(imgNr) {
	//debug("jetzt warten");
	if (!g_isNextImageLoaded) {
		//debugAppend("imgNr: " + String(incarnationCounter++));
		//give image some time load
		window.setTimeout("openImageGalleryEntryWhenLoaded(" + imgNr + ")", 100);	
	}
	else {
		//debug("jetzt ist es da!");
		openImageGalleryEntry(imgNr);
	}
}



function getGalleryEntryXML(url) {		
 	createXMLHttpRequest();		
 	if (!xmlHttp) {
		//showIndeterminate();
	}
	else {
		xmlHttp.onreadystatechange = showGalleryEntryXML;
		xmlHttp.open("GET", url + getCachePreventTime(), true);
		xmlHttp.send(null);
	}
}


//is called when xmlhttprequest sends result
function showGalleryEntryXML() {
	var html = "";	
	var status;
	if (xmlHttp.readyState == 4) {	
		try {      //firefox sometimes throws errors     
			status = xmlHttp.status;
		}
		catch (e) {
			status = 404;
            /*alert("Network error!\nPlease try later.");
            try {
            alert("Failure: " +  + xmlHttp.statusText);
            }
            catch(e) {}*/
        	}

		//result is there
		if (status == 200) {     
		
			var response = xmlHttp.responseXML.documentElement;

			g_imgBegin = getNodeValue(response, "imgbegin");
			g_imgPrev = getNodeValue(response, "imgprev");
			g_imgNext = getNodeValue(response, "imgnext");
			g_imgEnd = getNodeValue(response, "imgend");			

			g_unid = getNodeValue(response, "unid"); 
			g_fileName = getNodeValue(response, "filename"); 
			g_slideSrc = g_unid + "/$file/slide_" + g_fileName;
			g_originalSrc = g_unid + "/$file/" + g_fileName;
			g_slideWidth = parseInt(getNodeValue(response, "width")); 
			g_slideHeight = parseInt(getNodeValue(response, "height")),
			g_slideCaption = getNodeValue(response, "caption"),
			g_slideNr = getNodeValue(response, "nr"), 
			g_slideCount = getNodeValue(response, "count")			

			//preloading images for slideshow
			g_isNextImageLoaded = false;
			document.getElementById("imagepreloader").src = g_slideSrc;


			if (g_isSlideshowRunning) {
					if (g_showAtOnce) {
						//called from page, not div, don't wait for image to show
						g_showAtOnce = false;
						showGalleryEntryAjax();
					}
					else {						
							g_slideshowTimer = window.setTimeout("showGalleryEntryAjax()", g_slideshowTimeout);												
					}
			}
			else {
				showGalleryEntryAjax();
			}						
		}		
	}
}


//show gallery entry, information is provided in global variables
function showGalleryEntryAjax() {	
	//g_slideWidth = 640;
	//g_slideHeight = 600;

	g_slideWidth = g_maximumImageWidth;
	g_slideHeight = g_maximumImageHeight;


	var shadeborder = 8;
	 var divWidth = g_slideWidth + 7;  //38;



	//var divHeight = height + 20;
	var divHeight = g_slideHeight + 72;  //space below image
	// magic numbers follow, do not try at home
	//var popupWidth = divWidth;
	//var popupHeight = divHeight - 36;
	var shadeWidth = divWidth + 23;   //56;
	var shadeHeight = divHeight + 69;

/*	if (screen.width <= 800) {
     	divHeight = 300;
          popupHeight = 276;
          shadeHeight = 353;
	}*/


	showLr("divContent");
    	showLr("divContentShade");
    	
	var elmShade = document.getElementById("divContentShade");
	var elmPopup = document.getElementById("divContent");
	var elmContent = document.getElementById("divContentInnerContent");

	var divX = g_pageWidth / 2 - divWidth / 2;
	//var divY = Math.round( (viewportGetHeight() - divHeight) / 2 ) + viewportGetScrollY();
	var divAllHeight = (g_slideHeight + 127);
	var divY = Math.round( (viewportGetHeight() - divAllHeight) / 2 ) + viewportGetScrollY();  //107 = space below image + padding-top to image
	//debug("divY: " + String(divY));
	if (divX < 0) { divX = 0; }
	if (divY < 0) { divY = 0; }
	
	elmShade.style.left = (divX - shadeborder) + "px";
	elmShade.style.top = (divY - shadeborder) + "px";
	elmShade.style.width = shadeWidth + "px";
	elmShade.style.height = shadeHeight + "px";

	elmPopup.style.left = divX + "px";
	elmPopup.style.top = divY + "px";
	elmPopup.style.width = divWidth + "px";
	elmPopup.style.height = divHeight + "px";
	elmContent.style.width = g_slideWidth + "px";
	elmContent.style.height = g_slideHeight + "px";
	document.getElementById("divContentTitle").style.width = (g_slideWidth - 1) + "px";
	document.getElementById("closeButtonDivContent").style.left = (g_slideWidth - 7) + "px";

	//document.getElementById("popupDivTitle").innerHTML = "<img src=\"" + layerTitleImg + "\" alt=\"" + layerTitle + "\">";


      //g_openpopupDiv = sUrl;

	document.getElementById("galleryimage").src = document.getElementById("imagepreloader").src; //g_slideSrc;
	//document.getElementById("originalimage").href = g_originalSrc;
	//document.getElementById("galleryimage").style.width = String(g_slideWidth) + "px";
	//document.getElementById("galleryimage").style.height = String(g_slideHeight) + "px";
	//document.getElementById("gallerytable").style.width = String(g_slideWidth + 2) + "px";
	//document.getElementById("gallerytableinfo").style.width = String(g_slideWidth + 2) + "px";
	//document.getElementById("gallerysp").style.width = String(g_slideWidth - 138) + "px";	
	document.getElementById("gallerycaption").innerHTML = g_slideCaption;
	document.getElementById("gallerynrofcount").innerHTML = "(" + g_slideNr + "/" + g_slideCount + ")";
	if (g_imgBegin == "-1") document.getElementById("gallerybegin").style.visibility = "hidden";
	else document.getElementById("gallerybegin").style.visibility = "visible";
	if (g_imgPrev == "-1") document.getElementById("galleryprev").style.visibility = "hidden";
	else document.getElementById("galleryprev").style.visibility = "visible";
	if (g_imgNext == "-1") document.getElementById("gallerynext").style.visibility = "hidden";
	else document.getElementById("gallerynext").style.visibility = "visible";
	if (g_imgEnd == "-1") document.getElementById("galleryend").style.visibility = "hidden";
	else document.getElementById("galleryend").style.visibility = "visible";
	if (g_imgNext == "-1") {
		document.getElementById("startstop").src = "/icons/ecblank.gif";
		document.getElementById("startstop").alt = "";
	}
	else {
		document.getElementById("startstop").src = g_startStopSrc;
		document.getElementById("startstop").alt = g_startStopAlt;
	}


	elmPopup.style.display = "block";
	elmShade.style.display = "block";
	elmContent.style.display = "block";
	
	//debug("g_slideSrc: " + g_slideSrc);
	//debugAppend("g_isNextImageLoaded: " + String(g_isNextImageLoaded));
	
	if (g_isSlideshowRunning) {
		if(g_imgNext != "-1") {		
			//if slideshow is running and current image is not the last in the slideshow open the next one

			//if current image is already loaded, get the next one	
			if (g_isNextImageLoaded) {		
				//debugAppend("weiter");
				openImageGalleryEntry(g_imgNext);							
			}
			else {
				//debugAppend("warten!!!!!!");
				openImageGalleryEntryWhenLoaded(g_imgNext)
			}
			
		}
		else {
			//no more images, stop slideshow, so it is also stopped when jumped to another entry
			g_startStopSrc = g_startSrc;		
			g_startStopAlt = g_startAlt;
			g_isSlideshowRunning = !g_isSlideshowRunning;
		}
	}
	
}




function galleryGoto(dest) {
	stopSlideshow();
	switch (dest) {
	case "begin":		
		imgNr = g_imgBegin;
		break;
	case "prev":
		imgNr = g_imgPrev;
		break;
	case "next":
		imgNr = g_imgNext;
		break;
	case "end":
		imgNr = g_imgEnd;
		break;
	}	
	openImageGalleryEntry(imgNr);
}

function stopSlideshow() {
	if(g_isSlideshowRunning) {
		window.clearTimeout(g_slideshowTimer);
		xmlHttp.abort();
		g_startStopSrc= g_startSrc;			
		g_startStopAlt = g_startAlt;
		document.getElementById("startstop").src = g_startSrc;
		document.getElementById("startstop").alt = g_startAlt;		
		g_isSlideshowRunning = false;
	}		
}

function startStopSlideshow() {
	if(g_isSlideshowRunning) {
		window.clearTimeout(g_slideshowTimer);
		xmlHttp.abort();
		g_startStopSrc= g_startSrc;			
		g_startStopAlt= g_startAlt;					
	}
	else {		
		openImageGalleryEntry(g_imgNext);				
		g_startStopSrc = g_stopSrc;		
		g_startStopAlt = g_stopAlt;		
	}
	document.getElementById("startstop").src = g_startStopSrc;
	document.getElementById("startstop").alt = g_startStopAlt;
	g_isSlideshowRunning = !g_isSlideshowRunning;
}

//is called from page not div
function startSlideshow() {
	g_showAtOnce = true;
	g_isSlideshowRunning = true;
	g_startStopSrc = g_stopSrc;
	g_startStopAlt = g_stopAlt;
	openImageGalleryEntry(1);
}


function openGalleryEntryPrint() {
	openGalleryEntryPrintWindow(g_imgCurrent);
}

function openGalleryEntryPrintWindow(imgNr) {
	var docURL = document.URL;
	var pos = docURL.indexOf("?OpenDocument");
	if(pos != "-1") {
		docURL = docURL.substring(0, pos);
	}
	var entryURL = replStr(docURL, "/web/", "/webimagegalleryentryprint/") + "?OpenDocument&img=" + imgNr;	
	var width = 640;
	var height = 480;
	var windowWidth =  width + 30;
	var windowHeight = height + 130;
	var windowX = (screen.width - windowWidth) / 2;
	var windowY = (screen.height - windowHeight) / 2;
	var parameters = "width=" + windowWidth + ", height=" + windowHeight + ", left=" + windowX + ", top=" + windowY + ", location=no, status=no, toolbar=no, menubar=no, dependent=yes";
	var entryWindow = window.open(entryURL, "entry", parameters);
	if (entryWindow) entryWindow.focus();		
}


function closeDivContent() {	
	stopSlideshow()
	hideLr("divContent");
	hideLr("divContentShade");
}