/******************************************************************************
Name:    Highslide JS
Version: 3.3.22 (July 14 2008)
Config:  default -outlines -overlays -navigation -dragging -preloading -autosize -multiple -hideelements
Author:  Torstein Hønsi
Support: http://vikjavev.no/highslide/forum

Licence:
Highslide JS is licensed under a Creative Commons Attribution-NonCommercial 2.5
License (http://creativecommons.org/licenses/by-nc/2.5/).

You are free:
	* to copy, distribute, display, and perform the work
	* to make derivative works

Under the following conditions:
	* Attribution. You must attribute the work in the manner  specified by  the
	  author or licensor.
	* Noncommercial. You may not use this work for commercial purposes.

* For  any  reuse  or  distribution, you  must make clear to others the license
  terms of this work.
* Any  of  these  conditions  can  be  waived  if  you  get permission from the 
  copyright holder.

Your fair use and other rights are in no way affected by the above.
******************************************************************************/

var hs = {

// Apply your own settings here, or override them in the html file.  
graphicsDir : 'highslide/graphics/',
restoreCursor : 'zoomout.cur', // necessary for preload
expandSteps : 10, // number of steps in zoom. Each step lasts for duration/step milliseconds.
expandDuration : 250, // milliseconds
restoreSteps : 10,
restoreDuration : 250,
marginLeft : 15,
marginRight : 15,
marginTop : 15,
marginBottom : 15,
zIndexCounter : 1001, // adjust to other absolutely positioned elements

restoreTitle : 'Click to close image',
loadingText : 'Loading...',
loadingTitle : 'Click to cancel',
loadingOpacity : 0.75,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
padToMinWidth : false, // pad the popup width to make room for wide caption


// These settings can also be overridden inline for each image
captionId : null,
spaceForCaption : 30, // leaves space below images with captions
slideshowGroup : null, // defines groups for next/previous links and keystrokes
minWidth: 200,
minHeight: 200,
wrapperClassName : 'highslide-wrapper', // for enhanced css-control

// END OF YOUR SETTINGS


// declare internal properties
expanders : [],
overrides : [
	'spaceForCaption',
	'captionId',
	'captionText',
	'captionEval',
	
	'wrapperClassName',
	'minWidth',
	'minHeight',
	'slideshowGroup',
	'easing',
	'easingClose',
	'fadeInOut'
],
clones : {},
ie : (document.all && !window.opera),
safari : /Safari/.test(navigator.userAgent),

$ : function (id) {
	return document.getElementById(id);
},

push : function (arr, val) {
	arr[arr.length] = val;
},

createElement : function (tag, attribs, styles, parent, nopad) {
	var el = document.createElement(tag);
	if (attribs) hs.setAttribs(el, attribs);
	if (nopad) hs.setStyles(el, {padding: 0, border: 'none', margin: 0});
	if (styles) hs.setStyles(el, styles);
	if (parent) parent.appendChild(el);	
	return el;
},

setAttribs : function (el, attribs) {
	for (var x in attribs) el[x] = attribs[x];
},

setStyles : function (el, styles) {
	for (var x in styles) {
		try { 
			if (hs.ie && x == 'opacity') {
				if (styles[x] > 0.99) el.style.removeAttribute('filter');
				else el.style.filter = 'alpha(opacity='+ (styles[x] * 100) +')';
			}
			else el.style[x] = styles[x]; 
		}
		catch (e) {}
	}
},

ieVersion : function () {
	var arr = navigator.appVersion.split("MSIE");
	return arr[1] ? parseFloat(arr[1]) : null;
},

getPageSize : function () {
	var iebody = document.compatMode && document.compatMode != "BackCompat" 
		? document.documentElement : document.body;
	
	var width = hs.ie ? iebody.clientWidth : 
			(document.documentElement.clientWidth || self.innerWidth),
		height = hs.ie ? iebody.clientHeight : self.innerHeight;
	
	return {
		width: width,
		height: height,		
		scrollLeft: hs.ie ? iebody.scrollLeft : pageXOffset,
		scrollTop: hs.ie ? iebody.scrollTop : pageYOffset
	}
},

position : function(el)	{ 
	var p = { x: el.offsetLeft, y: el.offsetTop };
	while (el.offsetParent)	{
		el = el.offsetParent;
		p.x += el.offsetLeft;
		p.y += el.offsetTop;
		if (el != document.body && el != document.documentElement) {
			p.x -= el.scrollLeft;
			p.y -= el.scrollTop;
		}
	}
	return p;
},

expand : function(a, params, custom) {
	if (a.getParams) return params;
	
	try {
		new hs.Expander(a, params, custom);
		return false;		
	} catch (e) { return true; }
},

getParam : function (a, param) {
	a.getParams = a.onclick;
	var p = a.getParams ? a.getParams() : null;
	a.getParams = null;
	
	return (p && typeof p[param] != 'undefined') ? p[param] : 
		(typeof hs[param] != 'undefined' ? hs[param] : null);
},

getSrc : function (a) {
	var src = hs.getParam(a, 'src');
	if (src) return src;
	return a.href;
},

getNode : function (id) {
	var node = hs.$(id), clone = hs.clones[id], a = {};
	if (!node && !clone) return null;
	if (!clone) {
		clone = node.cloneNode(true);
		clone.id = '';
		hs.clones[id] = clone;
		return node;
	} else {
		return clone.cloneNode(true);
	}
},

discardElement : function(d) {
	hs.garbageBin.appendChild(d);
	hs.garbageBin.innerHTML = '';
},


getWrapperKey : function (element) {
	var el, re = /^highslide-wrapper-([0-9]+)$/;
	
	// 1. look in open expanders
	el = element;
	while (el.parentNode)	{
		if (el.id && re.test(el.id)) return el.id.replace(re, "$1");
		el = el.parentNode;
	}
	// 2. look in thumbnail
	el = element;
	while (el.parentNode)	{
		if (el.tagName && hs.isHsAnchor(el)) {
			for (var key = 0; key < hs.expanders.length; key++) {
				var exp = hs.expanders[key];
				if (exp && exp.a == el) return key;
			}
		}
		el = el.parentNode;
	}
	
	return null;	
},

getExpander : function (el) {
	if (typeof el == 'undefined') return hs.expanders[hs.focusKey] || null;
	if (typeof el == 'number') return hs.expanders[el] || null;
	if (typeof el == 'string') el = hs.$(el);
	return hs.expanders[hs.getWrapperKey(el)] || null;
},

isHsAnchor : function (a) {
	return (a.onclick && a.onclick.toString().replace(/\s/g, ' ').match(/hs.(htmlE|e)xpand/));
},


genContainer : function () {
	if (!hs.container) {
		hs.container = hs.createElement('div', 
			null, 
			{ position: 'absolute', left: 0, top: 0, width: '100%', zIndex: hs.zIndexCounter }, 
			document.body,
			true
		);
		hs.loading = hs.createElement('a',
			{
				className: 'highslide-loading',
				title: hs.loadingTitle,
				innerHTML: hs.loadingText,
				href: 'javascript:void(0)'
			},
			{
				position: 'absolute',
				opacity: hs.loadingOpacity,
				left: '-9999px',
				zIndex: 1
			}, hs.container
		);
		hs.garbageBin = hs.createElement('div', null, { display: 'none' }, hs.container);
		
		// http://www.robertpenner.com/easing/ 
		Math.linearTween = function (t, b, c, d) {
			return c*t/d + b;
		};
		Math.easeInQuad = function (t, b, c, d) {
			return c*(t/=d)*t + b;
		};
	}
},

close : function(el) {
	var exp = hs.getExpander(el);
	if (exp) exp.close();
	return false;
}
}; // end hs object


//-----------------------------------------------------------------------------
// The expander object
hs.Expander = function(a, params, custom, contentType) {
	this.a = a;
	this.custom = custom;
	this.contentType = contentType || 'image';
	this.isImage = !this.isHtml;
	hs.genContainer();
	var key = this.key = hs.expanders.length;
	
	// override inline parameters
	for (var i = 0; i < hs.overrides.length; i++) {
		var name = hs.overrides[i];
		this[name] = params && typeof params[name] != 'undefined' ?
			params[name] : hs[name];
	}
	
	this.src = params && params.src ? params.src : a.href;
	
	// get thumb
	var el = this.thumb = ((params && params.thumbnailId) ? hs.$(params.thumbnailId) : null) 
		|| a.getElementsByTagName('img')[0] || a;
	this.thumbsUserSetId = el.id || a.id;
	
	// check if already open
	for (var i = 0; i < hs.expanders.length; i++) {
		if (hs.expanders[i] && hs.expanders[i].a == a) {
			hs.expanders[i].focus();
			return false;
		}		
	}	
	// cancel other
	for (var i = 0; i < hs.expanders.length; i++) {
		if (hs.expanders[i] && hs.expanders[i].thumb != el && !hs.expanders[i].onLoadStarted) {
			hs.expanders[i].cancelLoading();
		}
	}
	hs.expanders[this.key] = this;
		if (hs.expanders[key-1]) hs.expanders[key-1].close();
		if (typeof hs.focusKey != 'undefined' && hs.expanders[hs.focusKey])
			hs.expanders[hs.focusKey].close();
	
	var pos = hs.position(el);
	
	// thumbnail metrics		
	this.thumbWidth = el.width ? parseInt(el.width) : el.offsetWidth;		
	this.thumbHeight = el.height ? parseInt(el.height) : el.offsetHeight;
	this.thumbLeft = pos.x;
	this.thumbTop = pos.y;
	this.thumbOffsetBorderW = (this.thumb.offsetWidth - this.thumbWidth) / 2;
	this.thumbOffsetBorderH = (this.thumb.offsetHeight - this.thumbHeight) / 2;
	
	// instanciate the wrapper
	this.wrapper = hs.createElement(
		'div',
		{
			id: 'highslide-wrapper-'+ this.key,
			className: this.wrapperClassName
		},
		{
			visibility: 'hidden',
			position: 'absolute',
			zIndex: hs.zIndexCounter++
		}, null, true );
		this[this.contentType +'Create']();
	return true;
};

hs.Expander.prototype = {

displayLoading : function() {
	if (this.onLoadStarted || this.loading) return;
		
	//this.originalCursor = this.a.style.cursor;
	//this.a.style.cursor = 'wait';
	
	this.loading = hs.loading;
	var exp = this;
	this.loading.onclick = function() {
		exp.cancelLoading();
	};
	this.loading.style.top = (this.thumbTop 
		+ (this.thumbHeight - this.loading.offsetHeight) / 2) +'px';
	var exp = this, left = (this.thumbLeft + this.thumbOffsetBorderW 
		+ (this.thumbWidth - this.loading.offsetWidth) / 2) +'px';
	setTimeout(function () { if (exp.loading) exp.loading.style.left = left }, 100); 
},

imageCreate : function() {
	var exp = this;
	
	var img = document.createElement('img');
    this.content = img;
    img.onload = function () {
    	if (hs.expanders[exp.key]) exp.contentLoaded(); 
	};
    img.onclick = function () { try { 
    	exp.close();
    } catch (e) {} };
    if (hs.blockRightClick) img.oncontextmenu = function() { return false; };
    img.className = 'highslide-image';
    img.style.visibility = 'hidden'; // prevent flickering in IE
    img.style.display = 'block';
	img.style.position = 'absolute';
	img.style.maxWidth = 'none';
    img.style.zIndex = 3;
    img.title = hs.restoreTitle;
    if (hs.safari) hs.container.appendChild(img);
    if (hs.ie && hs.flushImgSize) img.src = null;
	img.src = this.src;
	
	this.displayLoading();
},

contentLoaded : function() {
	try {
		if (!this.content) return;
		this.content.onload = null;
		if (this.onLoadStarted) return;
		else this.onLoadStarted = true;
		
		if (this.loading) {
			hs.setStyles(this.loading, { left: '-9999px', top: '-9999px' });
			this.loading = null;
			//this.a.style.cursor = this.originalCursor || '';
		}
		this.marginBottom = hs.marginBottom;	
			this.newWidth = this.content.width;
			this.newHeight = this.content.height;
			this.fullExpandWidth = this.newWidth;
			this.fullExpandHeight = this.newHeight;
			
			this.content.style.width = this.thumbWidth +'px';
			this.content.style.height = this.thumbHeight +'px';
			this.getCaption();
		
		this.wrapper.appendChild(this.content);
		this.content.style.position = 'relative'; // Saf
		if (this.caption) this.wrapper.appendChild(this.caption);
		this.wrapper.style.left = this.thumbLeft +'px';
		this.wrapper.style.top = this.thumbTop +'px';
		hs.container.appendChild(this.wrapper);
		
		// correct for borders
		this.offsetBorderW = (this.content.offsetWidth - this.thumbWidth) / 2;
		this.offsetBorderH = (this.content.offsetHeight - this.thumbHeight) / 2;
		var modMarginRight = hs.marginRight + 2 * this.offsetBorderW;
		this.marginBottom += 2 * this.offsetBorderH;
		
		var ratio = this.newWidth / this.newHeight;
		var minWidth = this.newWidth;
		var minHeight = this.newHeight;
		
		var justify = { x: 'auto', y: 'auto' };
		
		var page = hs.getPageSize();
		// justify
		this.x = { 
			min: parseInt(this.thumbLeft) - this.offsetBorderW + this.thumbOffsetBorderW,
			span: this.newWidth,
			minSpan: (this.newWidth < minWidth && !hs.padToMinWidth) 
				? this.newWidth : minWidth,
			marginMin: hs.marginLeft, 
			marginMax: modMarginRight,
			scroll: page.scrollLeft,
			clientSpan: page.width,
			thumbSpan: this.thumbWidth
		};
		var oldRight = this.x.min + parseInt(this.thumbWidth);
		this.x = this.justify(this.x);
		this.y = { 
			min: parseInt(this.thumbTop) - this.offsetBorderH + this.thumbOffsetBorderH,
			span: this.newHeight,
			minSpan: this.newHeight < minHeight ? this.newHeight : minHeight,
			marginMin: hs.marginTop, 
			marginMax: this.marginBottom, 
			scroll: page.scrollTop,
			clientSpan: page.height,
			thumbSpan: this.thumbHeight
		};
		var oldBottom = this.y.min + parseInt(this.thumbHeight);
		this.y = this.justify(this.y);
		

		var x = this.x;
		var y = this.y;
		this.show();
	} catch (e) {
		window.location.href = this.src;
	}
},

justify : function (p) {
	var tgt, dim = p == this.x ? 'x' : 'y';
	
	
		var hasMovedMin = false;
		
		// calculate p.min
		p.min = Math.round(p.min - ((p.span - p.thumbSpan) / 2)); // auto
		
		if (p.min < p.scroll + p.marginMin) {
			p.min = p.scroll + p.marginMin;
			hasMovedMin = true;		
		}
	
		
		// calculate right/newWidth
		if (p.min + p.span > p.scroll + p.clientSpan - p.marginMax) {
			if (hasMovedMin) {
				
			} else if (p.span < p.clientSpan - p.marginMin - p.marginMax) { // move newTop up
				p.min = p.scroll + p.clientSpan - p.span - p.marginMin - p.marginMax;
			} else { // image larger than client
				p.min = p.scroll + p.marginMin;
				
			}
			
		}
		
	
		
	if (p.min < p.marginMin) {
		tmpMin = p.min;
		p.min = p.marginMin; 
		
	}
	return p;
},

show : function () {
	
	
	if (this.x.imgSpan) this.content.style.margin = '0 auto';
	
	// Apply size change		
	this.changeSize(
		1,
		{ 
			x: this.thumbLeft + this.thumbOffsetBorderW - this.offsetBorderW,
			y: this.thumbTop + this.thumbOffsetBorderH - this.offsetBorderH,
			w: this.thumbWidth,
			h: this.thumbHeight,
			imgW: this.thumbWidth
		},
		{
			x: this.x.min,
			y: this.y.min,
			w: this.x.span,
			h: this.y.span,
			imgW: this.x.imgSpan
		},
		hs.expandDuration,
		hs.expandSteps
	);
},

changeSize : function(up, from, to, dur, steps) {	
			
	if (!up) { // remove children
		var n = this.wrapper.childNodes.length;
		for (var i = n - 1; i >= 0 ; i--) {
			var child = this.wrapper.childNodes[i];
			if (child != this.content) hs.discardElement(child);
		}
	}
		
	if (this.fadeInOut) {
		from.op = up ? 0 : 1;
		to.op = up;
	}
	var t,
	exp = this,
	easing = Math[this.easing] || Math.easeInQuad;
	if (!up) easing = Math[this.easingClose] || easing;
			
	for (var i = 1; i <= steps; i++) {
		t = Math.round(i * (dur / steps));
		
		(function(){
			var pI = i, size = {};
			
			for (var x in from) {
				size[x] = easing(t, from[x], to[x] - from[x], dur);
				if (/[xywh]/.test(x)) size[x] = Math.round(size[x]);
			}
			
			setTimeout ( function() {
				if (up && pI == 1) {
					exp.content.style.visibility = 'visible';
					exp.a.className += ' highslide-active-anchor';
				}
				exp.setSize(size);
			}, t);				
		})();		
	}
	
	if (up) {
		setTimeout(function() {
			if (exp.caption) exp.writeCaption();
			exp.afterExpand();
		}, t + 50);
	}
	else setTimeout(function() { exp.afterClose(); }, t);
		
},

setSize : function (to) {
	try {
			this.wrapper.style.width = (to.w + 2*this.offsetBorderW) +'px';
			this.content.style.width =
				((to.imgW && !isNaN(to.imgW)) ? to.imgW : to.w) +'px';
			if (hs.safari) this.content.style.maxWidth = this.content.style.width;
			this.content.style.height = to.h +'px';
		if (to.op) hs.setStyles(this.wrapper, { opacity: to.op });
				
				
		hs.setStyles ( this.wrapper, {
			'visibility': 'visible',
			'left': to.x +'px',
			'top': to.y +'px'
		});
		
	} catch (e) { window.location.href = this.src;	}
},

afterExpand : function() {
	this.isExpanded = true;	
	this.focus();
},



cancelLoading : function() {	
	hs.expanders[this.key] = null;
	//this.a.style.cursor = this.originalCursor;
	if (this.loading) hs.loading.style.left = '-9999px';
},

getCaption : function() {
	if (!this.captionId && this.thumbsUserSetId)  
		this.captionId = 'caption-for-'+ this.thumbsUserSetId;
	if (this.captionId) this.caption = hs.getNode(this.captionId);
	if (!this.caption && !this.captionText && this.captionEval) try {
		this.captionText = eval(this.captionEval);
	} catch (e) {}
	if (!this.caption && this.captionText) this.caption = hs.createElement('div', 
			{ className: 'highslide-caption', innerHTML: this.captionText } );
	
	if (!this.caption) {
		var next = this.a.nextSibling;
		while (next && !hs.isHsAnchor(next)) {
			if (/highslide-caption/.test(next.className || null)) {
				this.caption = next.cloneNode(1);
				break;
			}
			next = next.nextSibling;
		}
	}
	if (this.caption) {
		this.marginBottom += this.spaceForCaption;		
	}
	
},

writeCaption : function() {
	try {
		hs.setStyles(this.wrapper, { width: this.wrapper.offsetWidth +'px', 
			height: this.wrapper.offsetHeight +'px' } );	
		hs.setStyles(this.caption, { visibility: 'hidden', marginTop: hs.safari ? 0 : '-'+ this.y.span +'px'});
		this.caption.className += ' highslide-display-block';
		
		var height, exp = this;
		if (hs.ie && (hs.ieVersion() < 6 || document.compatMode == 'BackCompat')) {
			height = this.caption.offsetHeight;
		} else {
			var temp = hs.createElement('div', {innerHTML: this.caption.innerHTML}, 
				null, null, true); // to get height
			this.caption.innerHTML = '';
			this.caption.appendChild(temp);	
			height = this.caption.childNodes[0].offsetHeight;
			this.caption.innerHTML = this.caption.childNodes[0].innerHTML;
		}
		hs.setStyles(this.caption, { overflow: 'hidden', height: 0, zIndex: 2, marginTop: 0 });
		this.wrapper.style.height = 'auto';
		
		if (hs.captionSlideSpeed) {
			var step = (Math.round(height/50) || 1) * hs.captionSlideSpeed;
		} else {
			this.placeCaption(height, 1);
			return;
		}
		for (var h = height % step, t = 0; h <= height; h += step, t += 10) {
			(function(){
				var pH = h, end = (h == height) ? 1 : 0;
				setTimeout( function() {
					exp.placeCaption(pH, end);
				}, t);
			})();
		}
	} catch (e) {}	
},

placeCaption : function(height, end) {
	if (!this.caption) return;
	this.caption.style.height = height +'px';
	this.caption.style.visibility = 'visible';
	this.y.span = this.wrapper.offsetHeight - 2 * this.offsetBorderH;
},


focus : function() {
	this.wrapper.style.zIndex = hs.zIndexCounter++;
		this.content.title = hs.restoreTitle;
		
		hs.styleRestoreCursor = window.opera ? 'pointer' : 'url('+ hs.graphicsDir + hs.restoreCursor +'), pointer';
		if (hs.ie && hs.ieVersion() < 6) hs.styleRestoreCursor = 'hand';
		this.content.style.cursor = hs.styleRestoreCursor;
		
	hs.focusKey = this.key;	
},

close : function() {
	if (this.isClosing || !this.isExpanded) return;
	this.isClosing = true;
	
	try {
		
		this.content.style.cursor = 'default';
		
		this.changeSize(
			0,
			{
				x: this.x.min,
				y: this.y.min,
				w: this.x.span,
				h: parseInt(this.content.style.height),
				imgW: this.x.imgSpan
			},
			{
				x: this.thumbLeft - this.offsetBorderW + this.thumbOffsetBorderW,
				y: this.thumbTop - this.offsetBorderH + this.thumbOffsetBorderH,
				w: this.thumbWidth,
				h: this.thumbHeight,
				imgW: this.thumbWidth
			},
			hs.restoreDuration,
			hs.restoreSteps
		);
		
	} catch (e) { this.afterClose(); } 
},



afterClose : function () {
	this.a.className = this.a.className.replace('highslide-active-anchor', '');
	
		hs.discardElement(this.wrapper);
	hs.expanders[this.key] = null;
}

};
// history
var HsExpander = hs.Expander;

// set handlers