/******************************************************************************
Name:    Highslide JS
Version: 3.3.3 (December 8 2007)
Config:  default -captions -outlines -overlays -navigation -preloading -autosize -multiple
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, click and drag to move',
loadingText : 'Loading...',
loadingTitle : 'Click to cancel',
loadingOpacity : 0.75,


// These settings can also be overridden inline for each image
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 : [
	
	'wrapperClassName',
	'minWidth',
	'minHeight',
	'slideshowGroup'
],
clones : {},
ie : (document.all && !window.opera),
safari : navigator.userAgent.indexOf("Safari") != -1,

$ : 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') el.style.filter = 'alpha(opacity='+ (styles[x] * 100) +')';
			else el.style[x] = styles[x]; 
		}
		catch (e) {}
	}
},

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

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;
	
	return (p && typeof p[param] != 'undefined') ? p[param] : hs[param];
},

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

purge : function(d) {
	if (!hs.ie) return;
	var a = d.attributes, i, l, n;
	if (a) {
		l = a.length;
		for (i = 0; i < l; i += 1) {
			n = a[i].name;
			if (typeof d[n] === 'function') {
				d[n] = null;
			}
		}
	}
	a = d.childNodes;
	if (a) {
		l = a.length;
		for (i = 0; i < l; i += 1) {
			hs.purge(d.childNodes[i]);
		}
	}
},


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

getExpander : function (el) {
	try {	
		if (!el) return hs.expanders[hs.focusKey];
		if (typeof el == 'number') return hs.expanders[el];
		if (typeof el == 'string') el = hs.$(el);
		return hs.expanders[hs.getWrapperKey(el)];
	} catch (e) {}
},

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

mouseClickHandler : function(e) 
{	
	if (!e) e = window.event;
	if (e.button > 1) return true;
	if (!e.target) e.target = e.srcElement;
	
	var el = e.target;
	while (el.parentNode
		&& !(/highslide-(image|move|html|resize)/.test(el.className)))
	{
		el = el.parentNode;
	}
	var exp = hs.getExpander(el);

	if (exp && e.type == 'mousedown') {
		if (e.target.form) return;
		var match = el.className.match(/highslide-(image|move|resize)/);
		if (match) {
			hs.dragArgs = { exp: exp , type: match[1], left: exp.x.min, width: exp.x.span, top: exp.y.min, 
				height: exp.y.span, clickX: e.clientX, clickY: e.clientY };
			
			if (hs.dragArgs.type == 'image') exp.content.style.cursor = 'move';
			
			hs.addEventListener(document, 'mousemove', hs.dragHandler);
			if (e.preventDefault) e.preventDefault(); // FF
			
			if (/highslide-(image|html)-blur/.test(exp.content.className)) {
				exp.focus();
				hs.hasFocused = true;
			}
			return false;
		}
	} else if (e.type == 'mouseup') {
		
		hs.removeEventListener(document, 'mousemove', hs.dragHandler);
		
		if (hs.dragArgs) {
			
			if (hs.dragArgs.type == 'image')
				hs.dragArgs.exp.content.style.cursor = hs.styleRestoreCursor;
			
			var hasDragged = (Math.abs(hs.dragArgs.dX) + Math.abs(hs.dragArgs.dY) > 0);
			
			if (!hasDragged &&!hs.hasFocused && !/(move|resize)/.test(hs.dragArgs.type)) {
				exp.close();
			} 
			else if (hasDragged || (!hasDragged && hs.hasHtmlexpanders)) {
				hs.dragArgs.exp.redoShowHide();
			}
			
			hs.hasFocused = false;
			hs.dragArgs = null;
		
		} else if (/highslide-image-blur/.test(el.className)) {
			el.style.cursor = hs.styleRestoreCursor;		
		}
	}
},

dragHandler : function(e)
{
	if (!hs.dragArgs) return;
	if (!e) e = window.event;
	var exp = hs.dragArgs.exp;
	
	hs.dragArgs.dX = e.clientX - hs.dragArgs.clickX;
	hs.dragArgs.dY = e.clientY - hs.dragArgs.clickY;
	
	 exp.move(hs.dragArgs);
	return false;
},

addEventListener : function (el, event, func) {
	try {
		el.addEventListener(event, func, false);
	} catch (e) {
		try {
			el.detachEvent('on'+ event, func);
			el.attachEvent('on'+ event, func);
		} catch (e) {
			el['on'+ event] = func;
		}
	} 
},

removeEventListener : function (el, event, func) {
	try {
		el.removeEventListener(event, func, false);
	} catch (e) {
		try {
			el.detachEvent('on'+ event, func);
		} catch (e) {
			el['on'+ event] = null;
		}
	}
},


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
			},
			{
				position: 'absolute',
				opacity: hs.loadingOpacity,
				left: '-9999px',
				zIndex: 1
			}, hs.container
		);
	}
},

close : function(el) {
	try { hs.getExpander(el).close(); } catch (e) {}
	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 (i = 0; i < hs.overrides.length; i++) {
		var name = hs.overrides[i];
		this[name] = params && typeof params[name] != 'undefined' ?
			params[name] : hs[name];
	}
	
	// get thumb
	var el = this.thumb = (params ? hs.$(params.thumbnailId) : null) 
		|| a.getElementsByTagName('IMG')[0] || a;
	this.thumbsUserSetId = el.id || a.id;
	
	// check if already open
	for (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 (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;
		try { hs.expanders[key - 1].close(); } catch (e){}
		try { hs.expanders[hs.focusKey].close(); } catch (e){} // preserved

	var pos = hs.position(el);
	
	// store properties of thumbnail
	this.thumbWidth = el.width ? el.width : el.offsetWidth;		
	this.thumbHeight = el.height ? 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']();
};

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;
	this.loading.href = 'javascript:hs.expanders['+ this.key +'].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 () { try { exp.contentLoaded(); } catch (e) {} };
    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);
    // uncomment this to flush img size:
    // if (hs.ie) img.src = null;
	img.src = hs.getSrc(this.a);
	
	this.displayLoading();
},

contentLoaded : function() {
	try { 
	
		if (!this.content) return;
		if (this.onLoadStarted) return; // old Gecko loop
		else this.onLoadStarted = true;
		
			   
		if (this.loading) {
			this.loading.style.left = '-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.wrapper.appendChild(this.content);
		this.content.style.position = 'relative'; // Saf
		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 ) 
				? 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 = hs.getSrc(this.a);
	}
},

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 () {
	
	// Selectbox bug
	var imgPos = {x: this.x.min - 20, y: this.y.min - 20, w: this.x.span + 40, 
		h: this.y.span + 40};
	hs.hideSelects = (hs.ie && hs.ieVersion() < 7);
	if (hs.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
	// Iframes bug
	hs.hideIframes = ((window.opera && navigator.appVersion < 9) || navigator.vendor == 'KDE' 
		|| (hs.ie && hs.ieVersion() < 5.5));
	if (hs.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);
	
	// 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) {
	var dW = (to.w - from.w) / steps,
	dImgW = (to.imgW - from.imgW) / steps,
	dH = (to.h - from.h) / steps,
	dX = (to.x - from.x) / steps,
	dY = (to.y - from.y) / steps,
	dO = (to.o - from.o) /steps,
	t,
	exp = this;
	for (i = 1; i <= steps; i++) {
		from.w += dW;
		from.imgW += dImgW;
		from.h += dH;
		from.x += dX;
		from.y += dY;
		from.o += dO;
		t = Math.round(i * (dur / steps));
		
		(function(){
			var size = i < steps ? from : to, param = {}, pI = i;
			for (var x in size) param[x] = size[x];
			
			setTimeout ( function() {
				if (up && pI == 1) {
					exp.content.style.visibility = 'visible';
					exp.a.className += ' highslide-active-anchor';
				}
				exp.setSize(param);
			}, t);				
		})();		
	}
	
	if (up) {
		setTimeout(function() {
			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 || to.w) +'px';
			this.content.style.height = to.h +'px';
				
		
				
		hs.setStyles ( this.wrapper,
			{
				'visibility': 'visible',
				'left': to.x +'px',
				'top': to.y +'px'
			}
		);
		
	} catch (e) { window.location.href = hs.getSrc(this.a);	}
},

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';
},


showHideElements : function (tagName, visibility, imgPos) {
	var els = document.getElementsByTagName(tagName);
	if (els) {			
		for (i = 0; i < els.length; i++) {
			if (els[i].nodeName == tagName) {  
				var hiddenBy = els[i].getAttribute('hidden-by');
				if (visibility == 'visible' && hiddenBy) {
					hiddenBy = hiddenBy.replace('['+ this.key +']', '');
					els[i].setAttribute('hidden-by', hiddenBy);
					if (!hiddenBy) els[i].style.visibility = 'visible';
				} else if (visibility == 'hidden') { // hide if behind
					var elPos = hs.position(els[i]);
					elPos.w = els[i].offsetWidth;
					elPos.h = els[i].offsetHeight;
				
					
						var clearsX = (elPos.x + elPos.w < imgPos.x || elPos.x > imgPos.x + imgPos.w);
						var clearsY = (elPos.y + elPos.h < imgPos.y || elPos.y > imgPos.y + imgPos.h);
					
					var wrapperKey = hs.getWrapperKey(els[i]);
					if (!clearsX && !clearsY && wrapperKey != this.key) { // element falls behind image
						if (!hiddenBy)
							els[i].setAttribute('hidden-by', '['+ this.key +']');
						else if (!hiddenBy.match('['+ this.key +']'))
							els[i].setAttribute('hidden-by', hiddenBy + '['+ this.key +']');
						els[i].style.visibility = 'hidden';
					} else if (hiddenBy == '['+ this.key +']' || hs.focusKey == wrapperKey) { // on move
						els[i].setAttribute('hidden-by', '');
						els[i].style.visibility = 'visible';
					} else if (hiddenBy && hiddenBy.match('['+ this.key +']')) {
						els[i].setAttribute('hidden-by', hiddenBy.replace('['+ this.key +']', ''));
					}
				}   
			}
		}
	}
},

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;	
},

move : function (e) {
	this.x.min = e.left + e.dX;
	this.y.min = e.top + e.dY;
	
	hs.setStyles(this.wrapper, { left: this.x.min +'px', top: this.y.min +'px' });
	
},

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(); } 
},



// on end move and resize
redoShowHide : function() {
	var imgPos = {
		x: parseInt(this.wrapper.style.left) - 20, 
		y: parseInt(this.wrapper.style.top) - 20, 
		w: this.content.offsetWidth + 40, 
		h: this.content.offsetHeight + 40
	};
	if (hs.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
	if (hs.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);

},

afterClose : function () {
	this.a.className = this.a.className.replace('highslide-active-anchor', '');
	
	if (hs.hideSelects) this.showHideElements('SELECT', 'visible');
	if (hs.hideIframes) this.showHideElements('IFRAME', 'visible');
		hs.purge(this.wrapper);
		if (hs.ie && hs.ieVersion() < 5.5) this.wrapper.innerHTML = ''; // crash
		else this.wrapper.parentNode.removeChild(this.wrapper);
	hs.expanders[this.key] = null;
}
};
// history
var HsExpander = hs.Expander;

function resizeCodebox(aimw,aimh,which) {
	el = document.getElementById(which);
	isx=el.rows;
	isy=el.cols;
	if (isx==aimh) {el.rows=60;}
	if (isx!=aimh) {el.rows=aimh;}

	if (isy==aimw) {el.cols=120;}
	if (isy!=aimw) {el.cols=aimw;}
}

// set handlers
hs.addEventListener(document, 'mousedown', hs.mouseClickHandler);
hs.addEventListener(document, 'mouseup', hs.mouseClickHandler);