* Seadragon Ajax 0.8.3 (build 13991 on 2009-02-26)
* Copyright (c) Microsoft Corporation. All rights reserved.
* For more information, visit: http://livelabs.com/seadragon-ajax/
*/
if(!window.Seadragon){window.Seadragon={};}
Seadragon.Config={debugMode:false,animationTime:1.5,blendTime:0.5,alwaysBlend:false,autoHideControls:true,immediateRender:false,minZoomDimension:64,maxZoomPixelRatio:4,visibilityRatio:0.1,springStiffness:5.0,imageLoaderLimit:2,clickTimeThreshold:200,clickDistThreshold:5,zoomPerClick:2.0,zoomPerScroll:1.2,zoomPerSecond:2.0,proxyUrl:null,imagePath:"img/"};Seadragon.Strings={Errors:{Failure:"Sorry, but Seadragon Ajax can't run on your browser!\n"+"Please try using IE 7 or Firefox 3.\n",Dzc:"Sorry, we don't support Deep Zoom Collections!",Dzi:"Hmm, this doesn't appear to be a valid Deep Zoom Image.",Xml:"Hmm, this doesn't appear to be a valid Deep Zoom Image.",Empty:"You asked us to open nothing, so we did just that.",ImageFormat:"Sorry, we don't support {0}-based Deep Zoom Images.",Security:"It looks like a security restriction stopped us from "+"loading this Deep Zoom Image.",Status:"This space unintentionally left blank ({0} {1}).",Unknown:"Whoops, something inexplicably went wrong. Sorry!"},Messages:{Loading:"Loading..."},Tooltips:{FullPage:"Toggle full page",Home:"Go home",ZoomIn:"Zoom in (you can also use your mouse's scroll wheel)",ZoomOut:"Zoom out (you can also use your mouse's scroll wheel)"}};Seadragon.Strings.getString=function(prop){var props=prop.split('.');var string=Seadragon.Strings;for(var i=0;i<props.length;i++){string=string[props[i]]||{};}
if(typeof(string)!="string"){string="";}
var args=arguments;return string.replace(/\{\d+\}/g,function(capture){var i=parseInt(capture.match(/\d+/))+1;return i<args.length?args[i]:"";});};Seadragon.Strings.setString=function(prop,value){var props=prop.split('.');var container=Seadragon.Strings;for(var i=0;i<props.length-1;i++){if(!container[props[i]]){container[props[i]]={};}
if(time>maxUpdateTime){maxUpdateTime=time;}};this.clearProfile=function(){midUpdate=false;numUpdates=0;lastBeginTime=null;lastEndTime=null;minUpdateTime=Infinity;avgUpdateTime=0;maxUpdateTime=0;minIdleTime=Infinity;avgIdleTime=0;maxIdleTime=0;};};Seadragon.Point=function(x,y){var self=this;this.x=typeof(x)=="number"?x:0;this.y=typeof(y)=="number"?y:0;this.plus=function(point){return new Seadragon.Point(self.x+point.x,self.y+point.y);};this.minus=function(point){return new Seadragon.Point(self.x-point.x,self.y-point.y);};this.times=function(factor){return new Seadragon.Point(self.x*factor,self.y*factor);};this.divide=function(factor){return new Seadragon.Point(self.x/factor,self.y/factor);};this.negate=function(){return new Seadragon.Point(-self.x,-self.y);};this.distanceTo=function(point){return Math.sqrt(Math.pow(self.x-point.x,2)+
Math.pow(self.y-point.y,2));};this.apply=function(func){return new Seadragon.Point(func(self.x),func(self.y));};this.equals=function(point){return(point instanceof Seadragon.Point)&&(self.x===point.x)&&(self.y===point.y);};this.toString=function(){return"("+self.x+","+self.y+")";};};Seadragon.Rect=function(x,y,width,height){var self=this;this.x=typeof(x)=="number"?x:0;this.y=typeof(y)=="number"?y:0;this.width=typeof(width)=="number"?width:0;this.height=typeof(height)=="number"?height:0;this.getAspectRatio=function(){return self.width/self.height;};this.getTopLeft=function(){return new Seadragon.Point(self.x,self.y);};this.getBottomRight=function(){return new Seadragon.Point(self.x+self.width,self.y+self.height);};this.getCenter=function(){return new Seadragon.Point(self.x+self.width/2.0,self.y+self.height/2.0);};this.getSize=function(){return new Seadragon.Point(self.width,self.height);};this.equals=function(other){return(other instanceof Seadragon.Rect)&&(self.x===other.x)&&(self.y===other.y)&&(self.width===other.width)&&(self.height===other.height);};this.toString=function(){return"["+self.x+","+self.y+","+self.width+"x"+
return result;};this.getElementSize=function(elmt){var elmt=self.getElement(elmt);return new Seadragon.Point(elmt.clientWidth,elmt.clientHeight);};this.getElementStyle=function(elmt){var elmt=self.getElement(elmt);if(elmt.currentStyle){return elmt.currentStyle;}else if(window.getComputedStyle){return window.getComputedStyle(elmt,"");}else{Seadragon.Debug.fail("Unknown element style, no known technique.");}};this.getEvent=function(event){return event?event:window.event;};this.getMousePosition=function(event){var event=self.getEvent(event);var result=new Seadragon.Point();if(event.type=="DOMMouseScroll"&&browser==Browser.FIREFOX&&browserVersion<3){result.x=event.screenX;result.y=event.screenY;}else if(typeof(event.pageX)=="number"){result.x=event.pageX;result.y=event.pageY;}else if(typeof(event.clientX)=="number"){result.x=event.clientX+document.body.scrollLeft+document.documentElement.scrollLeft;result.y=event.clientY+document.body.scrollTop+document.documentElement.scrollTop;}else{Seadragon.Debug.fail("Unknown event mouse position, no known technique.");}
return result;};this.getMouseScroll=function(event){var event=self.getEvent(event);var delta=0;if(typeof(event.wheelDelta)=="number"){delta=event.wheelDelta;}else if(typeof(event.detail)=="number"){delta=event.detail*-1;}else{Seadragon.Debug.fail("Unknown event mouse scroll, no known technique.");}
var ieOpacity=Math.round(100*opacity);var ieFilter=" alpha(opacity="+ieOpacity+") ";try{if(elmt.filters&&elmt.filters.alpha){elmt.filters.alpha.opacity=ieOpacity;}else{elmt.style.filter+=ieFilter;}}catch(e){elmt.style.filter+=ieFilter;}};this.addEvent=function(elmt,eventName,handler,useCapture){var elmt=self.getElement(elmt);if(elmt.addEventListener){if(eventName=="mousewheel"){elmt.addEventListener("DOMMouseScroll",handler,useCapture);}
elmt.addEventListener(eventName,handler,useCapture);}else if(elmt.attachEvent){elmt.attachEvent("on"+eventName,handler);if(useCapture&&elmt.setCapture){elmt.setCapture();}}else{Seadragon.Debug.fail("Unable to attach event handler, no known technique.");}};this.removeEvent=function(elmt,eventName,handler,useCapture){var elmt=self.getElement(elmt);if(elmt.removeEventListener){if(eventName=="mousewheel"){elmt.removeEventListener("DOMMouseScroll",handler,useCapture);}
elmt.removeEventListener(eventName,handler,useCapture);}else if(elmt.detachEvent){elmt.detachEvent("on"+eventName,handler);if(useCapture&&elmt.releaseCapture){elmt.releaseCapture();}}else{Seadragon.Debug.fail("Unable to detach event handler, no known technique.");}};this.cancelEvent=function(event){var event=self.getEvent(event);if(event.preventDefault){event.preventDefault();}
try{req.open("GET",url,async);req.send(null);}catch(e){Seadragon.Debug.log(e.name+" while making AJAX request: "+e.message);req.onreadystatechange=null;req=null;if(async){callback();}}
return async?null:req;};this.parseXml=function(string){var xmlDoc=null;if(window.ActiveXObject){try{xmlDoc=new ActiveXObject("Microsoft.XMLDOM");xmlDoc.async=false;xmlDoc.loadXML(string);}catch(e){Seadragon.Debug.log(e.name+" while parsing XML (ActiveX): "+e.message);}}else if(window.DOMParser){try{var parser=new DOMParser();xmlDoc=parser.parseFromString(string,"text/xml");}catch(e){Seadragon.Debug.log(e.name+" while parsing XML (DOMParser): "+e.message);}}else{Seadragon.Debug.fail("Browser doesn't support XML DOM.");}
var isIE=Seadragon.Utils.getBrowser()==Seadragon.Browser.IE;var buttonDownAny=false;var ieCapturingAny=false;var ieTrackersActive={};var ieTrackersCapturing=[];function getMouseAbsolute(event){return Seadragon.Utils.getMousePosition(event);}
function getMouseRelative(event,elmt){var mouse=Seadragon.Utils.getMousePosition(event);var offset=Seadragon.Utils.getElementPosition(elmt);return mouse.minus(offset);}
function isChild(elmtA,elmtB){var body=document.body;while(elmtB&&elmtA!=elmtB&&body!=elmtB){try{elmtB=elmtB.parentNode;}catch(e){return false;}}
function stopTracking(){if(tracking){Seadragon.Utils.removeEvent(elmt,"mouseover",onMouseOver,false);Seadragon.Utils.removeEvent(elmt,"mouseout",onMouseOut,false);Seadragon.Utils.removeEvent(elmt,"mousedown",onMouseDown,false);Seadragon.Utils.removeEvent(elmt,"mouseup",onMouseUp,false);Seadragon.Utils.removeEvent(elmt,"mousewheel",onMouseScroll,false);Seadragon.Utils.removeEvent(elmt,"click",onMouseClick,false);releaseMouse();tracking=false;delete ieTrackersActive[hash];}}
function captureMouse(){if(!capturing){if(isIE){Seadragon.Utils.removeEvent(elmt,"mouseup",onMouseUp,false);Seadragon.Utils.addEvent(elmt,"mouseup",onMouseUpIE,true);Seadragon.Utils.addEvent(elmt,"mousemove",onMouseMoveIE,true);}else{Seadragon.Utils.addEvent(window,"mouseup",onMouseUpWindow,true);Seadragon.Utils.addEvent(window,"mousemove",onMouseMove,true);}
capturing=true;}}
function releaseMouse(){if(capturing){if(isIE){Seadragon.Utils.removeEvent(elmt,"mousemove",onMouseMoveIE,true);Seadragon.Utils.removeEvent(elmt,"mouseup",onMouseUpIE,true);Seadragon.Utils.addEvent(elmt,"mouseup",onMouseUp,false);}else{Seadragon.Utils.removeEvent(window,"mousemove",onMouseMove,true);Seadragon.Utils.removeEvent(window,"mouseup",onMouseUpWindow,true);}
capturing=false;}}
function triggerOthers(eventName,event){var trackers=ieTrackersActive;for(var otherHash in trackers){if(trackers.hasOwnProperty(otherHash)&&hash!=otherHash){trackers[otherHash][eventName](event);}}}
function hasMouse(){return insideElmt;}
function onMouseOver(event){var event=Seadragon.Utils.getEvent(event);if(isIE&&capturing&&!isChild(event.srcElement,elmt)){triggerOthers("onMouseOver",event);}
var to=event.target?event.target:event.srcElement;var from=event.relatedTarget?event.relatedTarget:event.fromElement;if(!isChild(elmt,to)||isChild(elmt,from)){return;}
insideElmt=true;if(typeof(self.enterHandler)=="function"){try{self.enterHandler(self,getMouseRelative(event,elmt),buttonDownElmt,buttonDownAny);}catch(e){Seadragon.Debug.error(e.name+" while executing enter handler: "+e.message,e);}}}
function onMouseOut(event){var event=Seadragon.Utils.getEvent(event);if(isIE&&capturing&&!isChild(event.srcElement,elmt)){triggerOthers("onMouseOut",event);}
var from=event.target?event.target:event.srcElement;var to=event.relatedTarget?event.relatedTarget:event.toElement;if(!isChild(elmt,from)||isChild(elmt,to)){return;}
insideElmt=false;if(typeof(self.exitHandler)=="function"){try{self.exitHandler(self,getMouseRelative(event,elmt),buttonDownElmt,buttonDownAny);}catch(e){Seadragon.Debug.error(e.name+" while executing exit handler: "+e.message,e);}}}
function onMouseDown(event){var event=Seadragon.Utils.getEvent(event);if(event.button==2){return;}
buttonDownElmt=true;lastPoint=getMouseAbsolute(event);lastMouseDownPoint=lastPoint;lastMouseDownTime=new Date().getTime();if(typeof(self.pressHandler)=="function"){try{self.pressHandler(self,getMouseRelative(event,elmt));}catch(e){Seadragon.Debug.error(e.name+" while executing press handler: "+e.message,e);}}
function onMouseUp(event){var event=Seadragon.Utils.getEvent(event);var insideElmtPress=buttonDownElmt;var insideElmtRelease=insideElmt;if(event.button==2){return;}
buttonDownElmt=false;if(typeof(self.releaseHandler)=="function"){try{self.releaseHandler(self,getMouseRelative(event,elmt),insideElmtPress,insideElmtRelease);}catch(e){Seadragon.Debug.error(e.name+" while executing release handler: "+e.message,e);}}
function onMouseUpWindow(event){if(!insideElmt){onMouseUp(event);}
releaseMouse();}
function onMouseClick(event){if(self.clickHandler){Seadragon.Utils.cancelEvent(event);}}
function handleMouseClick(event){var event=Seadragon.Utils.getEvent(event);if(event.button==2){return;}
var time=new Date().getTime()-lastMouseDownTime;var point=getMouseAbsolute(event);var distance=lastMouseDownPoint.distanceTo(point);var quick=time<=Seadragon.Config.clickTimeThreshold&&distance<=Seadragon.Config.clickDistThreshold;if(typeof(self.clickHandler)=="function"){try{self.clickHandler(self,getMouseRelative(event,elmt),quick,event.shiftKey);}catch(e){Seadragon.Debug.error(e.name+" while executing click handler: "+e.message,e);}}}
function onMouseMove(event){var event=Seadragon.Utils.getEvent(event);var point=getMouseAbsolute(event);var delta=point.minus(lastPoint);lastPoint=point;if(typeof(self.dragHandler)=="function"){try{self.dragHandler(self,getMouseRelative(event,elmt),delta,event.shiftKey);}catch(e){Seadragon.Debug.error(e.name+" while executing drag handler: "+e.message,e);}
Seadragon.Utils.cancelEvent(event);}}
function onMouseMoveIE(event){for(var i=0;i<ieTrackersCapturing.length;i++){ieTrackersCapturing[i].onMouseMove(event);}
Seadragon.Utils.stopEvent(event);}
function onMouseScroll(event){var event=Seadragon.Utils.getEvent(event);var delta=Seadragon.Utils.getMouseScroll(event);if(typeof(self.scrollHandler)=="function"){if(delta){try{self.scrollHandler(self,getMouseRelative(event,elmt),delta,event.shiftKey);}catch(e){Seadragon.Debug.error(e.name+" while executing scroll handler: "+e.message,e);}}
function enterHandler(tracker,position,buttonDownElmt,buttonDownAny){if(buttonDownElmt){inTo(ButtonState.DOWN);if(onEnter){onEnter();}}else if(!buttonDownAny){inTo(ButtonState.HOVER);}}
function exitHandler(tracker,position,buttonDownElmt,buttonDownAny){outTo(ButtonState.GROUP);if(buttonDownElmt&&onExit){onExit();}}
function pressHandler(tracker,position){inTo(ButtonState.DOWN);if(onPress){onPress();}}
function releaseHandler(tracker,position,insideElmtPress,insideElmtRelease){if(insideElmtPress&&insideElmtRelease){outTo(ButtonState.HOVER);if(onRelease){onRelease();}}else if(insideElmtPress){outTo(ButtonState.GROUP);}else{inTo(ButtonState.HOVER);}}
function clickHandler(tracker,position,quick,shift){if(onClick&&quick){onClick();}}
function exitHandler(tracker,position,buttonDownElmt,buttonDownAny){if(!buttonDownElmt){for(var i=0;i<buttons.length;i++){buttons[i].notifyGroupExit();}}}
function releaseHandler(tracker,position,insideElmtPress,insideElmtRelease){if(!insideElmtRelease){for(var i=0;i<buttons.length;i++){buttons[i].notifyGroupExit();}}}
DziError.prototype=new Error();function getError(e){if(!(e instanceof DziError)){Seadragon.Debug.error(e.name+" while creating DZI from XML: "+e.message);e=new DziError(Seadragon.Strings.getString("Errors.Unknown"));}
return e;}
function processResponse(xhr,tilesUrl){if(!xhr){throw new DziError(Seadragon.Strings.getString("Errors.Security"));}else if(xhr.status!==200&&xhr.status!==0){var status=xhr.status;var statusText=(status==404)?"Not Found":xhr.statusText;throw new DziError(Seadragon.Strings.getString("Errors.Status",status,statusText));}
var doc=null;if(xhr.responseXML&&xhr.responseXML.documentElement){doc=xhr.responseXML;}else if(xhr.responseText){doc=Seadragon.Utils.parseXml(xhr.responseText);}
return processXml(doc,tilesUrl);}
function processXml(xmlDoc,tilesUrl){if(!xmlDoc||!xmlDoc.documentElement){throw new DziError(Seadragon.Strings.getString("Errors.Xml"));}
var root=xmlDoc.documentElement;var rootName=root.tagName;if(rootName=="Image"){try{return processDzi(root,tilesUrl);}catch(e){var defMsg=Seadragon.Strings.getString("Errors.Dzi");throw(e instanceof DziError)?e:new DziError(defMsg);}}else if(rootName=="Collection"){throw new DziError(Seadragon.Strings.getString("Errors.Dzc"));}else if(rootName=="Error"){return processError(root);}
throw new DziError(Seadragon.Strings.getString("Errors.Dzi"));}
function processDzi(imageNode,tilesUrl){var fileFormat=imageNode.getAttribute("Format");if(!Seadragon.Utils.imageFormatSupported(fileFormat)){throw new DziError(Seadragon.Strings.getString("Errors.ImageFormat",fileFormat.toUpperCase()));}
return new Seadragon.DziTileSource(width,height,tileSize,tileOverlap,tilesUrl,fileFormat,dispRects);}
function processError(errorNode){var messageNode=errorNode.getElementsByTagName("Message")[0];var message=messageNode.firstChild.nodeValue;throw new DziError(message);}
var urlParts=xmlUrl.split('/');var filename=urlParts[urlParts.length-1];var lastDot=filename.lastIndexOf('.');if(lastDot>-1){urlParts[urlParts.length-1]=filename.slice(0,lastDot);}
var tilesUrl=urlParts.join('/')+"_files/";function finish(func,obj){try{return func(obj,tilesUrl);}catch(e){if(async){error=getError(e).message;return null;}else{throw getError(e);}}}
function getMinZoom(){var zoom=(contentSize.x<=contentSize.y)?Seadragon.Config.minZoomDimension/containerSize.x:Seadragon.Config.minZoomDimension/(containerSize.x*contentHeight);return homeZoom?Math.min(zoom,homeZoom):-Infinity;}
function getMaxZoom(){var zoom=contentSize.x*Seadragon.Config.maxZoomPixelRatio/containerSize.x;return homeZoom?Math.max(zoom,homeZoom):Infinity;}
this.getAspectRatio=function(){return containerSize.x/containerSize.y;};this.getContainerSize=function(){return new Seadragon.Point(containerSize.x,containerSize.y);};this.getBounds=function(current){var center=self.getCenter(current);var width=1.0/self.getZoom(current);var height=width/self.getAspectRatio();return new Seadragon.Rect(center.x-width/2.0,center.y-height/2.0,width,height);};this.getCenter=function(current){var centerCurrent=new Seadragon.Point(centerSpringX.getCurrent(),centerSpringY.getCurrent());var centerTarget=new Seadragon.Point(centerSpringX.getTarget(),centerSpringY.getTarget());if(current){return centerCurrent;}else if(!zoomPoint){return centerTarget;}
var refPoint=oldBounds.getTopLeft().times(containerSize.x/oldBounds.width).minus(newBounds.getTopLeft().times(containerSize.x/newBounds.width)).divide(containerSize.x/oldBounds.width-containerSize.x/newBounds.width);self.zoomTo(newZoom,refPoint,immediately);};this.goHome=function(immediately){self.fitBounds(homeBounds,immediately);};this.panBy=function(delta,immediately){var center=new Seadragon.Point(centerSpringX.getTarget(),centerSpringY.getTarget());self.panTo(center.plus(delta),immediately);};this.panTo=function(center,immediately){if(immediately){centerSpringX.resetTo(center.x);centerSpringY.resetTo(center.y);}else{centerSpringX.springTo(center.x);centerSpringY.springTo(center.y);}};this.zoomBy=function(factor,refPoint,immediately){self.zoomTo(zoomSpring.getTarget()*factor,refPoint,immediately);};this.zoomTo=function(zoom,refPoint,immediately){zoom=Math.max(zoom,getMinZoom());zoom=Math.min(zoom,getMaxZoom());if(immediately){zoomSpring.resetTo(zoom);}else{zoomSpring.springTo(zoom);}
Tile.prototype.toString=function(){return this.level+"/"+this.x+"_"+this.y;};Tile.prototype.drawHTML=function(container){if(!this.loaded){Seadragon.Debug.error("Attempting to draw tile "+this.toString()+" when it's not yet loaded.");return;}
var elmt=this.elmt;var style=this.style;var position=this.position.apply(Math.floor);var size=this.size.apply(Math.ceil);if(elmt.parentNode!=container){container.appendChild(elmt);}
style.left=position.x+"px";style.top=position.y+"px";style.width=size.x+"px";style.height=size.y+"px";Seadragon.Utils.setElementOpacity(elmt,this.opacity);};Tile.prototype.drawCanvas=function(context){if(!this.loaded){Seadragon.Debug.error("Attempting to draw tile "+this.toString()+" when it's not yet loaded.");return;}
var position=this.position;var size=this.size;context.globalAlpha=this.opacity;context.drawImage(this.image,position.x,position.y,size.x,size.y);};Tile.prototype.unload=function(){if(this.elmt&&this.elmt.parentNode){this.elmt.parentNode.removeChild(this.elmt);}
var tile=tilesMatrix[level][x][y];tile.lastTouchTime=time;return tile;}
function loadTile(tile,time){tile.loading=imageLoader.loadImage(tile.url,Seadragon.Utils.createCallback(null,onTileLoad,tile,time));}
function onTileLoad(tile,time,image){tile.loading=false;if(midUpdate){Seadragon.Debug.error("Tile load callback in middle of drawing routine.");return;}else if(!image){Seadragon.Debug.log("Tile "+tile+" failed to load: "+tile.url);tile.exists=false;return;}else if(time<lastResetTime){Seadragon.Debug.log("Ignoring tile "+tile+" loaded before reset: "+tile.url);return;}
var prevTime=prevTile.lastTouchTime;var worstTime=worstTile.lastTouchTime;var prevLevel=prevTile.level;var worstLevel=worstTile.level;if(prevTime<worstTime||(prevTime==worstTime&&prevLevel>worstLevel)){worstTile=prevTile;worstTileIndex=i;}}
function clearTiles(){tilesMatrix={};tilesLoaded=[];}
function providesCoverage(level,x,y){if(!coverage[level]){return false;}
if(x===undefined||y===undefined){var rows=coverage[level];for(var i in rows){if(rows.hasOwnProperty(i)){var cols=rows[i];for(var j in cols){if(cols.hasOwnProperty(j)&&!cols[j]){return false;}}}}
function isCovered(level,x,y){if(x===undefined||y===undefined){return providesCoverage(level+1);}else{return(providesCoverage(level+1,2*x,2*y)&&providesCoverage(level+1,2*x,2*y+1)&&providesCoverage(level+1,2*x+1,2*y)&&providesCoverage(level+1,2*x+1,2*y+1));}}
function setCoverage(level,x,y,covers){if(!coverage[level]){Seadragon.Debug.error("Setting coverage for a tile before its "+"level's coverage has been reset: "+level);return;}
if(!coverage[level][x]){coverage[level][x]={};}
coverage[level][x][y]=covers;}
function resetCoverage(level){coverage[level]={};}
function compareTiles(prevBest,tile){if(!prevBest){return tile;}
var viewportBounds=viewport.getBounds(true);var viewportTL=viewportBounds.getTopLeft();var viewportBR=viewportBounds.getBottomRight();if(viewportBR.x<0||viewportBR.y<0||viewportTL.x>1||viewportTL.y>normHeight){return;}
var boundsTL=tile.bounds.getTopLeft();var boundsSize=tile.bounds.getSize();var positionC=_pixelFromPoint(boundsTL,true);var sizeC=_deltaPixelsFromPoints(boundsSize,true);if(!_tileOverlap){sizeC=sizeC.plus(new Seadragon.Point(1,1));}
var positionT=_pixelFromPoint(boundsTL,false);var sizeT=_deltaPixelsFromPoints(boundsSize,false);var tileCenter=positionT.plus(sizeT.divide(2));var tileDistance=viewportCenter.distanceTo(tileCenter);tile.position=positionC;tile.size=sizeC;tile.distance=tileDistance;tile.visibility=levelVisibility;if(tile.loaded){if(!tile.blendStart){tile.blendStart=currentTime;}
var deltaTime=currentTime-tile.blendStart;var opacity=_min(1,deltaTime/blendTimeMillis);if(alwaysBlend){opacity*=levelOpacity;}
var numOverlays=overlays.length;for(var i=0;i<numOverlays;i++){var overlay=overlays[i];var bounds=overlay.bounds;overlay.position=_pixelFromPoint(bounds.getTopLeft(),true);overlay.size=_deltaPixelsFromPoints(bounds.getSize(),true);overlay.drawHTML(container);}
function Control(elmt,anchor,container){var wrapper=Seadragon.Utils.makeNeutralElement("span");this.elmt=elmt;this.anchor=anchor;this.container=container;this.wrapper=wrapper;wrapper.style.display="inline-block";wrapper.appendChild(elmt);if(anchor==Anchor.NONE){wrapper.style.width=wrapper.style.height="100%";}
function onFullPage(){viewer.setFullPage(!viewer.isFullPage());group.emulateExit();if(viewer.viewport){viewer.viewport.ensureVisible();}}
function beginZoomingIn(){lastZoomTime=new Date().getTime();zoomFactor=Seadragon.Config.zoomPerSecond;zooming=true;scheduleZoom();}
function beginZoomingOut(){lastZoomTime=new Date().getTime();zoomFactor=1.0/Seadragon.Config.zoomPerSecond;zooming=true;scheduleZoom();}
function endZooming(){zooming=false;}
function scheduleZoom(){window.setTimeout(doZoom,10);}
function doZoom(){if(zooming&&viewer.viewport){var currentTime=new Date().getTime();var deltaTime=currentTime-lastZoomTime;var adjustedFactor=Math.pow(zoomFactor,deltaTime/1000);viewer.viewport.zoomBy(adjustedFactor);viewer.viewport.ensureVisible();lastZoomTime=currentTime;scheduleZoom();}}
function doSingleZoomIn(){if(viewer.viewport){zooming=false;viewer.viewport.zoomBy(Seadragon.Config.zoomPerClick/1.0);viewer.viewport.ensureVisible();}}
function doSingleZoomOut(){if(viewer.viewport){zooming=false;viewer.viewport.zoomBy(1.0/Seadragon.Config.zoomPerClick);viewer.viewport.ensureVisible();}}
function lightUp(){group.emulateEnter();group.emulateExit();}
function url(prefix,postfix){return Seadragon.Config.imagePath+prefix+postfix;}
function setMessage(message){var textNode=document.createTextNode(message);canvas.innerHTML="";canvas.appendChild(Seadragon.Utils.makeCenteredNode(textNode));var textStyle=textNode.parentNode.style;textStyle.color="white";textStyle.fontFamily="verdana";textStyle.fontSize="13px";textStyle.fontSizeAdjust="none";textStyle.fontStyle="normal";textStyle.fontStretch="normal";textStyle.fontVariant="normal";textStyle.fontWeight="normal";textStyle.lineHeight="1em";textStyle.textAlign="center";textStyle.textDecoration="none";}
function onContainerEnter(tracker,position,buttonDownElmt,buttonDownAny){mouseInside=true;abortControlsAutoHide();}
function onContainerExit(tracker,position,buttonDownElmt,buttonDownAny){if(!buttonDownElmt){mouseInside=false;if(!animating){beginControlsAutoHide();}}}
function onContainerRelease(tracker,position,insideElmtPress,insideElmtRelease){if(!insideElmtRelease){mouseInside=false;if(!animating){beginControlsAutoHide();}}}
function onCanvasClick(tracker,position,quick,shift){if(viewport&&quick){var zoomPerClick=Seadragon.Config.zoomPerClick;var factor=shift?1.0/zoomPerClick:zoomPerClick;viewport.zoomBy(factor,viewport.pointFromPixel(position,true));viewport.ensureVisible();}}
function onCanvasDrag(tracker,position,delta,shift){if(viewport){viewport.panBy(viewport.deltaPointsFromPixels(delta.negate()));}}
function onCanvasRelease(tracker,position,insideElmtPress,insideElmtRelease){if(insideElmtPress&&viewport){viewport.ensureVisible();}}
function onCanvasScroll(tracker,position,delta,shift){if(viewport){var factor=Math.pow(Seadragon.Config.zoomPerScroll,delta);viewport.zoomBy(factor,viewport.pointFromPixel(position,true));viewport.ensureVisible();}}
