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 : 6,
marginRight : 0,
marginTop : 0,
marginBottom : 0,
zIndexCounter : 1001, // adjust to other absolutely positioned elements

restoreTitle : 'Click to close image, click and drag to move. Use arrow keys for next and previous.',
loadingText : 'Loading...',
loadingTitle : 'Click to cancel',
loadingOpacity : 0.75,
focusTitle : 'Click to bring to front',
allowMultipleInstances: true,
numberOfImagesToPreload : 5,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
padToMinWidth : true, // pad the popup width to make room for wide caption
fullExpandTitle : 'Expand to actual size',
fullExpandPosition : 'bottom right',
fullExpandOpacity : 1,
showCredits : true, // you can set this to false if you want
creditsText : '',
creditsHref : '',
creditsTitle : 'Go to the Highslide JS homepage',
enableKeyListener : true,

allowWidthReduction : true,
allowHeightReduction : true,
preserveContent : true, // Preserve changes made to the content and position of HTML popups.
objectLoadTime : 'before', // Load iframes 'before' or 'after' expansion.

// These settings can also be overridden inline for each image
captionId : null,
spaceForCaption : 0, // leaves space below images with captions
prod_id : 0,
img_count : 0,
img_index : 0,
content_sub_type : 'default',
slideshowGroup : null, // defines groups for next/previous links and keystrokes
minWidth: 150,
minHeight: 60,
allowSizeReduction: true, // allow the image to reduce to fit client size. If false, this overrides minWidth and minHeight
wrapperClassName : 'highslide-wrapper', // for enhanced css-control

// END OF YOUR SETTINGS


// declare internal properties
preloadTheseImages : [],
continuePreloading: true,
expanders : [],
overrides : [
	'allowSizeReduction',
	'spaceForCaption',
	'captionId',
	'captionText',
	'captionEval',
	
	'content_sub_type',
	'contentId',
	'prod_id',
	'img_index',
	'img_count',
	'width',
	'height',
	'allowWidthReduction',
	'allowHeightReduction',
	'preserveContent',
	'objectType',	
	'objectWidth',
	'objectHeight',
	'objectLoadTime',	
	'swfObject',
	'wrapperClassName',
	'minWidth',
	'minHeight',
	'slideshowGroup',
	'easing',
	'easingClose',
	'fadeInOut'
],
overlays : [],
idCounter : 0,
faders : [],

sleeping : [],
cacheBindings : [],
cachedGets : {},
clones : {},
ie : (document.all && !window.opera),
safari : /Safari/.test(navigator.userAgent),
geckoMac : /Macintosh.+rv:1\.[0-8].+Gecko/.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_img : function(a, params, custom){
	if (a.getParams) return params;
	try {
		new hs.Expander(a, params, custom);
		return false;		
	} catch (e) { return true; }
},

show_next_img : function(k, img_index){
	hs.expanders[k].load_next_img(img_index);
	try {
		return false;
	} catch (e) { return true; }
},

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

htmlExpand : function(a, params, custom) {
	if (a.getParams) return params;
	
		for (var i = 0; i < hs.sleeping.length; i++) {
			if (hs.sleeping[i] && hs.sleeping[i].a == a) {
				hs.sleeping[i].awake();
				hs.sleeping[i] = null;
				return false;
			}
		}
	try {
		hs.hasHtmlexpanders = true;
		new hs.Expander(a, params, custom, 'html');
		return false;
	} catch (e) {
		return true;
	}	
},

getElementByClass : function (el, tagName, className) {
	var els = el.getElementsByTagName(tagName);
	for (var i = 0; i < els.length; i++) {
    	if ((new RegExp(className)).test(els[i].className)) {
			return els[i];
		}
	}
	return null;
},

getSelfRendered : function() {
	var s =	'<div class="highslide-header">getSelfRendered</div>';
	return hs.createElement('div', { className: 'highslide-html-content', innerHTML: s } );
},


getCacheBinding : function (a) {
	for (var i = 0; i < hs.cacheBindings.length; i++) {
		if (hs.cacheBindings[i][0] == a) {
			var c = hs.cacheBindings[i][1];
			hs.cacheBindings[i][1] = c.cloneNode(1);
			return c;
		}
	}
	return null;
},

focusTopmost : function() {
	var topZ = 0, topmostKey = -1;
	for (var i = 0; i < hs.expanders.length; i++) {
		if (hs.expanders[i]) {
			if (hs.expanders[i].wrapper.style.zIndex && hs.expanders[i].wrapper.style.zIndex > topZ) {
				topZ = hs.expanders[i].wrapper.style.zIndex;
				
				topmostKey = i;
			}
		}
	}
	if (topmostKey == -1) hs.focusKey = -1;
	else hs.expanders[topmostKey].focus();
},

getAdjacentAnchor : function(key, op) {
	var aAr = document.getElementsByTagName('A'), hsAr = {}, activeI = -1, j = 0;
	for (var i = 0; i < aAr.length; i++) {
		if (hs.isHsAnchor(aAr[i]) && ((hs.expanders[key].slideshowGroup 
				== hs.getParam(aAr[i], 'slideshowGroup')))) {
			hsAr[j] = aAr[i];
			if (hs.expanders[key] && aAr[i] == hs.expanders[key].a) {
				activeI = j;
			}
			j++;
		}
	}
	return hsAr[activeI + op] || null;
},

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);
	}
},

purge : function(d) {
	var a = d.attributes, i, l, n;
	if (a) {
		l = a.length;
		for (var 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 (var i = 0; i < l; i += 1) hs.purge(d.childNodes[i]);
	}
},
discardElement : function(d) {
	if (hs.ie) hs.purge(d);
	hs.garbageBin.appendChild(d);
	hs.garbageBin.innerHTML = '';
},

previousOrNext : function (el, op) {
	var exp = hs.last = hs.getExpander(el);
	try {
		var adj = hs.upcoming =  hs.getAdjacentAnchor(exp.key, op);
		adj.onclick(); 		
	} catch (e){}
	try { exp.close(); } catch (e) {}	
	return false;
},

previous : function (el) {
	return hs.previousOrNext(el, -1);
},

next : function (el) {
	return hs.previousOrNext(el, 1);	
},

keyHandler : function(e) {
	if (!e) e = window.event;
	if (!e.target) e.target = e.srcElement; // ie
	if (e.target.form) return true; // form element has focus
	
	var op = null;
	switch (e.keyCode) {
		case 32: // Space
		case 34: // Page Down
		case 39: // Arrow right
		case 40: // Arrow down
			op = 1;
			break;
		case 8:  // Backspace
		case 33: // Page Up
		case 37: // Arrow left
		case 38: // Arrow up
			op = -1;
			break;
		case 27: // Escape
		case 13: // Enter
			op = 0;
	}
	return true; 
	if (op !== null) {
		hs.removeEventListener(document, 'keydown', hs.keyHandler);
		if (!hs.enableKeyListener) return true;
		
		if (e.preventDefault) e.preventDefault();
    	else e.returnValue = false;
		if (op == 0) {
			try { hs.getExpander().close(); } catch (e) {}
			return false;
		} else {
			return hs.previousOrNext(hs.focusKey, op);
		}
	}
	return true;
},


registerOverlay : function (overlay) {
	hs.push(hs.overlays, overlay);
},

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/));
},

reOrder : function () {
	for (var i = 0; i < hs.expanders.length; i++)
		if (hs.expanders[i] && hs.expanders[i].isExpanded) hs.focusTopmost();
},

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 && (exp.isClosing || !exp.isExpanded)) return true;
		
	if (exp && e.type == 'mousedown') {
		if (e.target.form) return true;
		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 };
			
			
			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 (/highslide-html/.test(el.className) && hs.focusKey != exp.key) {
			exp.focus();
			exp.redoShowHide();
		}
	} 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 = hs.dragArgs.hasDragged;
			
			if (!hasDragged &&!hs.hasFocused && !/(move|resize)/.test(hs.dragArgs.type)) {
				exp.close();
			} 
			else if (hasDragged || (!hasDragged && hs.hasHtmlexpanders)) {
				hs.dragArgs.exp.redoShowHide();
			}
			
			if (hs.dragArgs.exp.releaseMask) 
				hs.dragArgs.exp.releaseMask.style.display = 'none';
			
			hs.hasFocused = false;
			hs.dragArgs = null;
		
		} else if (/highslide-image-blur/.test(el.className)) {
			el.style.cursor = hs.styleRestoreCursor;		
		}
	}
	return false;
},

dragHandler : function(e)
{
	if (!hs.dragArgs) return true;
	if (!e) e = window.event;
	var a = hs.dragArgs, exp = a.exp;
	if (exp.iframe) {		
		if (!exp.releaseMask) exp.releaseMask = hs.createElement('div', null, 
			{ position: 'absolute', width: exp.x.span+'px', height: exp.y.span+'px', 
				left: 0, top: 0, zIndex: 4,	background: (hs.ie ? 'white' : 'none'), 
				opacity: 0.01 }, 
			exp.wrapper, true);
		if (exp.releaseMask.style.display == 'none')
			exp.releaseMask.style.display = '';
	}
	
	a.dX = e.clientX - a.clickX;
	a.dY = e.clientY - a.clickY;	
	
	var distance = Math.sqrt(Math.pow(a.dX, 2) + Math.pow(a.dY, 2));
	if (!a.hasDragged) a.hasDragged = (a.type != 'image' && distance > 0)
		|| (distance > (hs.dragSensitivity || 5));
	
	if (a.hasDragged && e.clientX > 5 && e.clientY > 5) {
		
		if (a.type == 'resize') exp.resize(a);
		else exp.move(a);
	}
	return false;
},

wrapperMouseHandler : function (e) {
	try {
		if (!e) e = window.event;
		var over = /mouseover/i.test(e.type); 
		if (!e.target) e.target = e.srcElement; // ie
		if (hs.ie) e.relatedTarget = 
			over ? e.fromElement : e.toElement; // ie
		var exp = hs.getExpander(e.target);
		if (!exp || !e.relatedTarget || hs.getExpander(e.relatedTarget) == exp 
			|| hs.dragArgs) return;
		for (var i = 0; i < exp.overlays.length; i++) {
			var o = hs.$('hsId'+ exp.overlays[i]);
			if (o && o.getAttribute('hideOnMouseOut')) {
				var from = over ? 0 : o.getAttribute('opacity'),
					to = over ? o.getAttribute('opacity') : 0;			
				hs.fade(o, from, to);
			}
		}	
	} catch (e) {}
},

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;
		}
	}
},

preloadFullImage : function (i) {
	if (hs.continuePreloading && hs.preloadTheseImages[i] && hs.preloadTheseImages[i] != 'undefined') {
		var img = document.createElement('img');
		img.onload = function() { 
			img = null;
			hs.preloadFullImage(i + 1);
		};
		img.src = hs.preloadTheseImages[i];
	}
},
preloadImages : function (number) {
	// preload cursor
	var cur = hs.createElement('img', { src: hs.graphicsDir + hs.restoreCursor });
},


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);
		hs.clearing = hs.createElement('div', null, { clear: 'both', paddingTop: '1px' }, null, true);
		// 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;
		};
		hs.ie6SSL = (hs.ie && hs.ieVersion() <= 6 && location.protocol == 'https:');
	}
},

fade : function (el, o, oFinal, dur, i, dir) {
	if (typeof i == 'undefined') { // new fader
		if (typeof dur != 'number') dur = 250;
		if (dur < 25) { // instant
			hs.setStyles( el, { opacity: oFinal	});
			return;
		}
		i = hs.faders.length;
		dir = oFinal > o ? 1 : -1;
		var step = (25 / (dur - dur % 25)) * Math.abs(o - oFinal);
	}
	o = parseFloat(o);
	el.style.visibility = (o <= 0) ? 'hidden' : 'visible';
	if (o < 0 || (dir == 1 && o > oFinal)) return;
	if (el.fading && el.fading.i != i) { // reverse
		clearTimeout(hs.faders[el.fading.i]);
		o = el.fading.o;
	}
	el.fading = {i: i, o: o, step: (step || el.fading.step)};
	el.style.visibility = (o <= 0) ? 'hidden' : 'visible';
	hs.setStyles(el, { opacity: o });
	hs.faders[i] = setTimeout(function() {
		hs.fade(el, o + el.fading.step * dir, oFinal, null, i, dir);
	}, 25);
},

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