/******************************************************************************
Version 2.2.8 (January 10 2007)

Author:  Torstein Hønsi
Support: http://vikjavev.no/highslide/forum
Email:   See http://vikjavev.no/megsjol

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
fullExpandIcon : 'fullexpand.gif',
expandSteps : 10, // number of steps in zoom. Each step lasts for duration/step milliseconds.
expandDuration : 300, // milliseconds
restoreSteps : 10,
restoreDuration : 300,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
numberOfImagesToPreload : 0, // set to 0 for no preload
marginLeft : 10,
marginRight : 35, // leave room for scrollbars + outline
marginTop : 10,
marginBottom : 35, // leave room for scrollbars + outline
zIndexCounter : 1001, // adjust to other absolutely positioned elements
slideInOutline : true, // whether the outline should appear at once or slide in
fullExpandTitle : '',
restoreTitle : '',
focusTitle : 'Click to bring to front',
loadingText : 'Sto caricando...',
loadingTitle : 'Click per cancellare',
loadingOpacity : 0.75,
showCredits : false, // you can set this to false if you want
creditsText : 'Powered by <i>Highslide JS</i>',
creditsHref : 'http://vikjavev.no/highslide/?user=1',
creditsTitle : 'Vai alla Homepage di Highslide JS',


// These settings can also be overridden inline for each image
anchor : 'auto', // where the image expands from
align : 'auto', // position in the client (overrides anchor)
captionId : null,
slideshowGroup : '', // defines groups for next/previous links and keystrokes
enableKeyListener : true,
spaceForCaption : 20, // leaves space below images with captions
minWidth: 200,
minHeight: 200,
allowSizeReduction: true, // allow the image to reduce to fit client size. If false, this overrides minWidth and minHeight
outlineType : 'drop-shadow', // set null to disable outlines
wrapperClassName : null, // for enhanced css-control


// END OF YOUR SETTINGS


// declare internal properties
preloadTheseImages : new Array(),
continuePreloading: true,
expandedImagesCounter : 0,
expanders : new Array(),
overrides : new Array(
        'anchor',
        'align',
        'outlineType',
        'spaceForCaption',
        'wrapperClassName',
        'minWidth',
        'minHeight',
        'captionId',
        'allowSizeReduction',
        'slideshowGroup',
        'enableKeyListener'
),
overlays : new Array(),
toggleImagesGroup : null,

// drag functionality
ie : (document.all && !window.opera),
nn6 : document.getElementById && !document.all,
safari : navigator.userAgent.indexOf("Safari") != -1,
hasFocused : false,
isDrag : false,

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

createElement : function (tag, attribs, styles, parent) {
        var el = document.createElement(tag);
        if (attribs) hs.setAttribs(el, attribs);
        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) {
                el.style[x] = styles[x];
        }
},

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

//--- Find client width and height
clientInfo : function ()        {
        var iebody = (document.compatMode && document.compatMode != "BackCompat")
                ? document.documentElement : document.body;

        this.width = hs.ie ? iebody.clientWidth : self.innerWidth;
        this.height = hs.ie ? iebody.clientHeight : self.innerHeight;
        this.scrollLeft = hs.ie ? iebody.scrollLeft : pageXOffset;
        this.scrollTop = hs.ie ? iebody.scrollTop : pageYOffset;
} ,

//--- Finds the position of an element
position : function(el)        {
        var parent = el;
        var p = Array();
        p.x = parent.offsetLeft;
        p.y = parent.offsetTop;
        while (parent.offsetParent)        {
                parent = parent.offsetParent;
                p.x += parent.offsetLeft;
                p.y += parent.offsetTop;
        }
        return p;
},

expand : function(a, params, contentType) {
        try {
                new HsExpander(a, params, contentType);
                return false;

        } catch(e) {
                return true;
        }

},

//--- Focus the topmost image after restore
focusTopmost : function() {
        var topZ = 0;
        var topmostKey = -1;
        for (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();
},


closeId : function(elId) { // for text links
        for (i = 0; i < hs.expanders.length; i++) {
                if (hs.expanders[i] && (hs.expanders[i].thumb.id == elId || hs.expanders[i].a.id == elId)) {
                        hs.expanders[i].doClose();
                        return;
                }
        }
},

close : function(el) {
        var key = hs.getWrapperKey(el);
        if (hs.expanders[key]) hs.expanders[key].doClose();
        return false;
},


toggleImages : function(closeId, expandEl) {
        if (closeId) hs.closeId(closeId);
        if (hs.ie) expandEl.href = expandEl.href.replace('about:(blank)?', ''); // mysterious IE thing
        hs.toggleImagesExpandEl = expandEl;
        return false;
},

getAdjacentAnchor : function(key, op) {
        var aAr = document.getElementsByTagName('A');
        var hsAr = new Array;
        for (i = 0; i < aAr.length; i++) {
                if (hs.isHsAnchor(aAr[i])) {
                        hsAr.push(aAr[i]);
                }
        }

        var activeI = -1;
        for (i = 0; i < hsAr.length; i++) {
                if (hs.expanders[key] && hsAr[i] == hs.expanders[key].a) {
                        activeI = i;
                        break;
                }
        }
        return hsAr[activeI + op];

},

getSrc : function (a) {
        return a.rel.replace(/_slash_/g, '/') || a.href;
},

previousOrNext : function (el, op) {
        if (typeof el == 'object') var activeKey = hs.getWrapperKey(el);
        else if (typeof el == 'number') var activeKey = el;
        if (hs.expanders[activeKey]) {
                hs.toggleImagesExpandEl = hs.getAdjacentAnchor(activeKey, op);
                hs.toggleImagesGroup = hs.expanders[activeKey].slideshowGroup;
                hs.expanders[activeKey].doClose();
        }

        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; // form element has focus

        var op = null;
        switch (e.keyCode) {
                case 34: // Page Down
                case 39: // Arrow right
                case 40: // Arrow left
                        op = 1;
                        break;
                case 33: // Page Up
                case 37: // Arrow left
                case 38: // Arrow down
                        op = -1;
                        break;
                case 27: // Escape
                case 13: // Enter
                        if (hs.expanders[hs.focusKey]) hs.expanders[hs.focusKey].doClose();
                        return false;
        }
        if (op != null) {
                hs.removeEventListener(document, 'keydown', hs.keyHandler);
                if (hs.expanders[hs.focusKey] && hs.expanders[hs.focusKey].enableKeyListener == false) return true;
                return hs.previousOrNext(hs.focusKey, op);
        }
        else return true;
},

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

getWrapperKey : function (el) {
        var key = -1;
        while (el.parentNode)        {
                el = el.parentNode;
                if (el.id && el.id.match(/^highslide-wrapper-[0-9]+$/)) {
                        key = el.id.replace(/^highslide-wrapper-([0-9]+)$/, "$1");
                        break;
                }
        }
        return key;
},

cleanUp : function () {
        if (hs.toggleImagesExpandEl) {
                hs.toggleImagesExpandEl.onclick();
                hs.toggleImagesExpandEl = null;
        } else {
                for (i = 0; i < hs.expanders.length; i++) {
                        if (hs.expanders[i] && hs.expanders[i].isExpanded) hs.focusTopmost();
                }
        }
},

mouseDownHandler : function(e)
{
        if (!e) e = window.event;
        if (e.button > 1) return true;
        if (!e.target) e.target = e.srcElement;

        var fobj = e.target;
        // loop out
        while (!fobj.tagName.match(/(HTML|BODY)/)        && !fobj.className.match(/highslide-(image|move|html)/))
        {
                fobj = hs.nn6 ? fobj.parentNode : fobj.parentElement;
        }
        if (fobj.tagName.match(/(HTML|BODY)/)) return;

        hs.dragKey = hs.getWrapperKey(fobj);

        if (fobj.className.match(/highslide-(image|move)/)) // drag or focus
        {
                hs.isDrag = true;
                hs.dragObj = hs.expanders[hs.dragKey].content;

                if (fobj.className.match('highslide-image')) hs.dragObj.style.cursor = 'move';
                tx = parseInt(hs.expanders[hs.dragKey].wrapper.style.left);
                ty = parseInt(hs.expanders[hs.dragKey].wrapper.style.top);

                hs.leftBeforeDrag = tx;
                hs.topBeforeDrag = ty;

                hs.dragX = hs.nn6 ? e.clientX : event.clientX;
                hs.dragY = hs.nn6 ? e.clientY : event.clientY;
                hs.addEventListener(document, 'mousemove', hs.mouseMoveHandler);
                if (e.preventDefault) e.preventDefault();


                if (hs.dragObj.className.match(/highslide-(image|html)-blur/)) {
                        hs.expanders[hs.dragKey].focus();
                        hs.hasFocused = true;
                }
                return false;
        }
        else if (fobj.className.match(/highslide-html/)) { // just focus
                hs.expanders[hs.dragKey].focus();
                hs.expanders[hs.dragKey].redoShowHide();
                hs.hasFocused = false; // why??
        }
},

mouseMoveHandler : function(e)
{
        if (hs.isDrag) {
                if (!hs.expanders[hs.dragKey] || !hs.expanders[hs.dragKey].wrapper) return;
                var wrapper = hs.expanders[hs.dragKey].wrapper;

                var left = hs.nn6 ? tx + e.clientX - hs.dragX : tx + event.clientX - hs.dragX;
                wrapper.style.left = left +'px';
                var top = hs.nn6 ? ty + e.clientY - hs.dragY : ty + event.clientY - hs.dragY;
                wrapper.style.top  = top +'px';


                return false;
        }
},

mouseUpHandler : function(e) {
        if (!e) e = window.event;
        if (e.button > 1) return true;
        if (!e.target) e.target = e.srcElement;

        hs.isDrag = false;
        var fobj = e.target;

        while (!fobj.tagName.match(/(HTML|BODY)/) && !fobj.className.match(/highslide-(image|move)/))
        {
                fobj = fobj.parentNode;
        }
        if (fobj.className.match(/highslide-(image|move)/) && hs.expanders[hs.dragKey]) {

                if (fobj.className.match('highslide-image')) {
                        fobj.style.cursor = hs.styleRestoreCursor;
                        hs.removeEventListener(document, 'mousemove', hs.mouseMoveHandler);
                }
                var left = parseInt(hs.expanders[hs.dragKey].wrapper.style.left);
                var top = parseInt(hs.expanders[hs.dragKey].wrapper.style.top);
                var hasMoved = left != hs.leftBeforeDrag || top != hs.topBeforeDrag;
                if (!hasMoved && !hs.hasFocused) {
                        hs.expanders[hs.dragKey].doClose();
                } else if (hasMoved || (!hasMoved && hs.hasHtmlExpanders)) {
                        hs.expanders[hs.dragKey].redoShowHide();
                }
                hs.hasFocused = false;

        } else if (fobj.className.match('highslide-image-blur')) {
                fobj.style.cursor = hs.styleRestoreCursor;
        }
},

addEventListener : function (el, event, func) {
        if (document.addEventListener) el.addEventListener(event, func, false);
        else if (document.attachEvent) el.attachEvent('on'+ event, func);
        else el[event] = func;
},

removeEventListener : function (el, event, func) {
        if (document.removeEventListener) el.removeEventListener(event, func, false);
        else if (document.detachEvent) el.detachEvent('on'+ event, func);
        else el[event] = null;
},

isHsAnchor : function (a) {
        return (a.className && (a.className.match("highslide$") || a.className.match("highslide ")));
},

preloadFullImage : function (i) {
        if (hs.continuePreloading && hs.preloadTheseImages[i] && hs.preloadTheseImages[i] != 'undefined') {
                var img = document.createElement('img');
                img.onload = function() { hs.preloadFullImage(i + 1); };
                img.src = hs.preloadTheseImages[i];
        }
},

preloadImages : function (number) {
        if (number) this.numberOfImagesToPreload = number;

        var j = 0;

        var aTags = document.getElementsByTagName('A');
        for (i = 0; i < aTags.length; i++) {
                a = aTags[i];
                if (hs.isHsAnchor(a)) {
                        if (j < this.numberOfImagesToPreload) {
                                hs.preloadTheseImages[j] = hs.getSrc(a);
                                j++;
                        }
                }
        }

        hs.preloadFullImage(0); // starts recursive process

        // preload cursor
        var cur = document.createElement('img');
        cur.src = hs.graphicsDir + hs.restoreCursor;

        // preload outlines
        if (hs.outlineType) {
                for (i = 1; i <= 8; i++) {
                        var img = document.createElement('img');
                        img.src = hs.graphicsDir + "outlines/"+ hs.outlineType +"/"+ i +".png";
                }
        }
}

}; // end hs object

//-----------------------------------------------------------------------------
// The expander object
HsExpander = function(a, params, contentType) {
        try {

                hs.continuePreloading = false;
                hs.container = hs.$('highslide-container');
                /*if (!hs.container) {
                hs.container = hs.createElement('div',
                        null,
                        { position: 'absolute', left: 0, top: 0, width: '100%', zIndex: hs.zIndexCounter },
                        document.body
                );
                }*/

                if (params && params.thumbnailId) {
                        var el = hs.$(params.thumbnailId);

                } else { // first img within anchor
                        for (i = 0; i < a.childNodes.length; i++) {
                                if (a.childNodes[i].tagName && a.childNodes[i].tagName == 'IMG') {
                                        var el = a.childNodes[i];
                                        break;
                                }
                        }
                }
                if (!el) el = a;

                // cancel other instances
                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();
                        }
                }

                // check if already open
                for (i = 0; i < hs.expanders.length; i++) {
                        if (hs.expanders[i] && hs.expanders[i].thumb == el) {
                                hs.expanders[i].focus();
                                return false;
                        }
                }

                this.key = hs.expandedImagesCounter++;
                hs.expanders[this.key] = this;
                if (contentType == 'html') {
                        this.isHtml = true;
                        this.contentType = 'html';
                } else {
                        this.isImage = true;
                        this.contentType = 'image';
                }
                this.a = a;


                // override inline parameters
                for (i = 0; i < hs.overrides.length; i++) {
                        var name = hs.overrides[i];
                        if (params && params[name] != undefined) this[name] = params[name];
                        else this[name] = hs[name];
                }

                // check slideshowGroup
                if (hs.toggleImagesGroup != null && hs.toggleImagesGroup != this.slideshowGroup) {
                        hs.toggleImagesGroup = null;
                        hs.expanders[this.key] = null;
                        return;
                }


                this.thumbsUserSetId = el.id || a.id;
                this.thumb = el;

                this.overlays = new Array();

                var pos = hs.position(el);

                // instanciate the wrapper
                this.wrapper = hs.createElement(
                        'div',
                        {
                                id: 'highslide-wrapper-'+ this.key,
                                className: this.wrapperClassName
                        },
                        {
                                visibility: 'hidden',
                                position: 'absolute',
                                zIndex: hs.zIndexCounter++
                        }
                );

                // store properties of the 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.thumbClass = el.className;

                // thumb borders
                this.thumbOffsetBorderW = (this.thumb.offsetWidth - this.thumbWidth) / 2;
                this.thumbOffsetBorderH = (this.thumb.offsetHeight - this.thumbHeight) / 2;

                if (this.isImage) this.imageCreate();

                return false;

        } catch(e) {
                return true;
        }

};

HsExpander.prototype.displayLoading = function() {
        if (this.onLoadStarted) return;

        this.originalCursor = this.a.style.cursor;
        this.a.style.cursor = 'wait';

        this.loading = hs.createElement('a',
                {
                        className: 'highslide-loading',
                        title: hs.loadingTitle,
                        href: 'javascript:hs.expanders['+ this.key +'].cancelLoading()',
                        innerHTML: hs.loadingText
                },
                {
                        position: 'absolute',
                        visibility: 'hidden'
                }, hs.container);

        if (hs.ie) this.loading.style.filter = 'alpha(opacity='+ (100*hs.loadingOpacity) +')';
        else this.loading.style.opacity = hs.loadingOpacity;

        this.loading.style.left = (this.thumbLeft + this.thumbOffsetBorderW
                + (this.thumbWidth - this.loading.offsetWidth) / 2) +'px';
        this.loading.style.top = (this.thumbTop
                + (this.thumbHeight - this.loading.offsetHeight) / 2) +'px';
        setTimeout(
                "if (hs.expanders["+ this.key +"] && hs.expanders["+ this.key +"].loading) "
                + "hs.expanders["+ this.key +"].loading.style.visibility = 'visible';",
                100
        );
};

HsExpander.prototype.imageCreate = function() {
        var img = document.createElement('img');
        var key = this.key;

        var img = document.createElement('img');
    this.content = img;
    img.onload = function () { if (hs.expanders[key]) hs.expanders[key].onLoad();  };
    img.className = 'highslide-image '+ this.thumbClass;
    img.style.visibility = 'hidden'; // prevent flickering in IE
    img.style.display = 'block';
        img.style.position = 'absolute';
    img.style.zIndex = 3;
    img.title = hs.restoreTitle;
    img.onmouseover = function () {
            if (hs.expanders[key]) hs.expanders[key].onMouseOver();
    };
    img.onmouseout = function (e) {
            var rel = e ? e.relatedTarget : event.toElement;
                if (hs.expanders[key]) hs.expanders[key].onMouseOut(rel);
        };
    if (hs.safari) hs.container.appendChild(img);
        img.src = hs.getSrc(this.a);

        this.displayLoading();
};

HsExpander.prototype.onLoad = function() {
        try {

                if (!this.content) return;
                // prevent looping on certain Gecko engines:
                if (this.onLoadStarted) return;
                else this.onLoadStarted = true;


                if (this.loading) {
                        hs.container.removeChild(this.loading);
                        this.loading = null;
                        this.a.style.cursor = this.originalCursor || '';
                }

                if (this.isImage) {

                        this.newWidth = this.content.width;
                        this.newHeight = this.content.height;
                        this.fullExpandWidth = this.newWidth;
                        this.fullExpandHeight = this.newHeight;

                        this.content.width = this.thumbWidth;
                        this.content.height = this.thumbHeight;
                }

                // identify caption div
                var modMarginBottom = hs.marginBottom;
                if (this.captionId && hs.$(this.captionId)) {
                        this.caption = hs.$(this.captionId).cloneNode(true);
                } else if (this.thumbsUserSetId && hs.$('caption-for-'+ this.thumbsUserSetId)) {
                        this.caption = hs.$('caption-for-'+ this.thumbsUserSetId).cloneNode(true);
                }
                if (this.caption) {
                        modMarginBottom += this.spaceForCaption;
                        this.caption.id = null;
                }

                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);
                if (this.swfObject) this.swfObject.write(this.flashContainerId);

                // correct for borders
                this.offsetBorderW = (this.wrapper.offsetWidth - this.thumbWidth) / 2;
                this.offsetBorderH = (this.wrapper.offsetHeight - this.thumbHeight) / 2;
                var modMarginRight = hs.marginRight + 2 * this.offsetBorderW;
                modMarginBottom += 2 * this.offsetBorderH;

                var ratio = this.newWidth / this.newHeight;
                var minWidth = this.allowSizeReduction ? this.minWidth : this.newWidth;
                var minHeight = this.allowSizeReduction ? this.minHeight : this.newHeight;

                var justify = { x: 'auto', y: 'auto' };
                if (this.align == 'center') {
                        justify.x = 'center';
                        justify.y = 'center';
                } else {
                        if (this.anchor.match(/^top/)) justify.y = null;
                        if (this.anchor.match(/right$/)) justify.x = 'max';
                        if (this.anchor.match(/^bottom/)) justify.y = 'max';
                        if (this.anchor.match(/left$/)) justify.x = null;
                }

                client = new hs.clientInfo();


                // justify
                this.x = {
                        min: parseInt(this.thumbLeft) - this.offsetBorderW + this.thumbOffsetBorderW,
                        span: this.newWidth,
                        minSpan: this.newWidth < minWidth ? this.newWidth : minWidth,
                        justify: justify.x,
                        marginMin: hs.marginLeft,
                        marginMax: modMarginRight,
                        scroll: client.scrollLeft,
                        clientSpan: client.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,
                        justify: justify.y,
                        marginMin: hs.marginTop,
                        marginMax: modMarginBottom,
                        scroll: client.scrollTop,
                        clientSpan: client.height,
                        thumbSpan: this.thumbHeight
                };
                var oldBottom = this.y.min + parseInt(this.thumbHeight);
                this.y = this.justify(this.y);

                if (this.isHtml) this.htmlSizeOperations();


                // correct ratio
                if (this.isImage) this.correctRatio(ratio);

                var x = this.x;
                var y = this.y;


                // Selectbox bug
                var imgPos = {x: x.min - 20, y: y.min - 20, w: x.span + 40, h: y.span + 40 + this.spaceForCaption};
                hs.hideSelects = (hs.ie && hs.ieVersion() < 7);
                if (hs.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
                // Iframes bug
                hs.hideIframes = (window.opera || navigator.vendor == 'KDE' || (hs.ie && hs.ieVersion() < 5.5));
                if (hs.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);

                // Apply size change

                this.changeSize(
                        this.thumbLeft + this.thumbOffsetBorderW - this.offsetBorderW,
                        this.thumbTop + this.thumbOffsetBorderH - this.offsetBorderH,
                        this.thumbWidth,
                        this.thumbHeight,
                        x.min,
                        y.min,
                        x.span,
                        y.span,
                        hs.expandDuration,
                        hs.expandSteps
                );

                setTimeout(
                        "if (hs.expanders["+ this.key +"])"
                        + "hs.expanders["+ this.key +"].onExpanded()",
                        hs.expandDuration
                );

        } catch(e) {
                if (hs.expanders[this.key] && hs.expanders[this.key].a)
                        window.location.href = hs.getSrc(hs.expanders[this.key].a);
        }
};

HsExpander.prototype.changeSize = function(x1, y1, w1, h1, x2, y2, w2, h2, dur, steps) {
        dW = (w2 - w1) / steps;
        dH = (h2 - h1) / steps;
        dX = (x2 - x1) / steps;
        dY = (y2 - y1) / steps;

        for (i = 1; i < hs.expandSteps; i++) {
                w1 += dW;
                h1 += dH;
                x1 += dX;
                y1 += dY;

                setTimeout(
                        "if (hs.expanders["+ this.key +"]) "
                        + "hs.expanders["+ this.key +"]."+ this.contentType +"SetSize("
                        + w1 +", "+ h1 +", "+ x1 +", "+ y1 +")",
                        Math.round(i * (dur / steps))
                );
        }
};

HsExpander.prototype.imageSetSize = function (width, height, left, top) {
        try {
                this.content.width = width;
                this.content.height = height;

                hs.setStyles ( this.wrapper,
                        {
                                'visibility': 'visible',
                                'left': left +'px',
                                'top': top +'px'
                        }
                );
                this.content.style.visibility = 'visible';
                if (this.thumb.tagName == 'IMG') this.thumb.style.visibility = 'hidden';

        } catch(e) {
                window.location.href = hs.getSrc(hs.expanders[this.key].a);
        }
};

HsExpander.prototype.onExpanded = function() {
        this[this.contentType +'SetSize'](this.x.span, this.y.span, this.x.min, this.y.min);
        this.isExpanded = true;
        this.focus();
        this.createCustomOverlays();
        if (hs.showCredits) this.writeCredits();

        if (this.caption) this.writeCaption();
        //else if (this.outlineType) this.writeOutline();
        if (!this.caption || !hs.slideInOutline && this.outlineType) this.writeOutline();

        if (this.fullExpandWidth > this.x.span) this.createFullExpand();

        if (!this.caption && !this.outlineType) this.onDisplayFinished();
};

HsExpander.prototype.onDisplayFinished = function() {
        // preload next
        var nextA = hs.getAdjacentAnchor(this.key, 1);
        if (nextA) {
                var img = document.createElement('img');
                img.src = hs.getSrc(nextA);
        }
};

HsExpander.prototype.justify = function (p) {
        if (p.justify == 'auto' || p.justify == 'center') {
                var hasMovedMin = false;
                var allowReduce = true;
                // calculate p.min
                if (p.justify == 'center') p.min = Math.round(p.scroll + (p.clientSpan - p.span - p.marginMax) / 2);
                else 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;
                }

                if (p.span < p.minSpan) {
                        p.span = p.minSpan;
                        allowReduce = false;
                }
                // calculate right/newWidth
                if (p.min + p.span > p.scroll + p.clientSpan - p.marginMax) {
                        if (hasMovedMin && allowReduce) p.span = p.clientSpan - p.marginMin - p.marginMax; // can't expand more
                        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 (allowReduce) p.span = p.clientSpan - p.marginMin - p.marginMax;
                        }

                }

                if (p.span < p.minSpan) {
                        p.span = p.minSpan;
                        allowReduce = false;
                }

        } else if (p.justify == 'max') {
                p.min = Math.floor(p.min - p.span + p.thumbSpan);
        }

        if (p.min < p.marginMin) {
                tmpMin = p.min;
                p.min = p.marginMin;
                if (allowReduce) p.span = p.span - (p.min - tmpMin);
        }
        return p;
};

HsExpander.prototype.correctRatio = function(ratio) {
        var x = this.x;
        var y = this.y;
        var changed = false;
        if (x.span / y.span > ratio) { // width greater
                var tmpWidth = x.span;
                x.span = y.span * ratio;
                if (x.span < x.minSpan) { // below minWidth
                        x.span = x.minSpan;
                        y.span = x.span / ratio;
                }
                changed = true;

        } else if (x.span / y.span < ratio) { // height greater
                var tmpHeight = y.span;
                y.span = x.span / ratio;
                changed = true;
        }

        if (changed) {
                x.min = parseInt(this.thumbLeft) - this.offsetBorderW + this.thumbOffsetBorderW;
                x.minSpan = x.span;
                this.x = this.justify(x);

                y.min = parseInt(this.thumbTop) - this.offsetBorderH + this.thumbOffsetBorderH;
                y.minSpan = y.span;
                this.y = this.justify(y);
        }
};

HsExpander.prototype.cancelLoading = function() {
        this.a.style.cursor = this.originalCursor;

        if (this.loading) {
                hs.container.removeChild(this.loading);
                this.loading = null;
        }

        hs.expanders[this.key] = null;
};

HsExpander.prototype.writeCredits = function () {
        var credits = hs.createElement('a',
                {
                        href: hs.creditsHref,
                        className: 'highslide-credits',
                        innerHTML: hs.creditsText,
                        title: hs.creditsTitle
                }
        );
        this.createOverlay(credits, 'top left');
};

HsExpander.prototype.writeCaption = function() {
        try {
                this.wrapper.style.width = this.wrapper.offsetWidth +'px';
                this.caption.style.visibility = 'hidden';
                this.caption.style.position = 'relative';
                if (hs.ie) this.caption.style.zoom = 1;
                this.caption.className += ' highslide-display-block'; // have to use className due to Opera

                var capHeight = this.caption.offsetHeight;
                var slideHeight = (capHeight < this.content.height) ? capHeight : this.content.height;
                this.caption.style.marginTop = '-'+ slideHeight +'px';

                this.caption.style.zIndex = 2;

                var step = 1;
                if (slideHeight > 400) step = 4;
                else if (slideHeight > 200) step = 2;
                else if (slideHeight > 100) step = 1;
                if (hs.captionSlideSpeed) step = step * hs.captionSlideSpeed;
                else step = slideHeight;


                setTimeout("if (hs.expanders["+ this.key +"] && hs.expanders["+ this.key +"].caption) "
                                + "hs.expanders["+ this.key +"].caption.style.visibility = 'visible'", 10); // flickering in Gecko
                var t = 0;

                for (marginTop = -slideHeight; marginTop <= 0; marginTop += step, t += 10) {
                        var eval = "if (hs.expanders["+ this.key +"] && hs.expanders["+ this.key +"].caption) { "
                                + "hs.expanders["+ this.key +"].caption.style.marginTop = '"+ marginTop +"px';";
                        if (hs.slideInOutline && marginTop >= 0) eval += 'hs.expanders['+ this.key +'].writeOutline();';
                        else if (!hs.slideInOutline) eval += 'hs.expanders['+ this.key +'].repositionOutline(0);';
                        eval += "}";

                        setTimeout (eval, t);
                }

        } catch (e) {}
};

HsExpander.prototype.writeOutline = function() {
        if (!this.outlineType) {
                this.onDisplayFinished();
                return;
        }
        this.outline = new Array();
        var v = hs.ieVersion();

        hs.hasAlphaImageLoader = hs.ie && v >= 5.5 && v < 7;
        hs.hasIe7Bug = hs.ie && v == 7; // bug: png breaks when filters applied
        hs.hasPngSupport = !hs.ie;
        this.preloadOutlineElement(1); // start recursive process
};

HsExpander.prototype.preloadOutlineElement = function(i) {
        if (!hs.hasAlphaImageLoader && !hs.hasPngSupport && !hs.hasIe7Bug) return;

        if (this.outline[i] && this.outline[i].onload) { // Gecko multiple onloads bug
                this.outline[i].onload = null;
                return;
        }

        var src = hs.graphicsDir + "outlines/"+ this.outlineType +"/"+ i +".png";

        if (hs.hasAlphaImageLoader) {

                this.outline[i] = hs.createElement('div',
                        null,
                        {
                                filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader("
                                        + "enabled=true, sizingMethod=scale src='"+ src + "') "
                        }
                );
        } else if (hs.hasIe7Bug) {
                this.outline[i] = hs.createElement('div',
                        null,
                        {
                                background: 'url('+ src +')'
                        }
                );
        }

        var img = document.createElement('img'); // for onload trigger
        if (hs.hasPngSupport) {
                this.outline[i] = img;
        }

        // common properties
        this.outline[i].style.position = 'absolute';
        var dim = (i % 2 == 1) ? 10 : 20;
        this.outline[i].style.height = dim +'px';
        this.outline[i].style.width = dim +'px';
        if (hs.ie) {
                this.outline[i].style.lineHeight = dim +'px';
                this.outline[i].style.fontSize = 0;
        }

        if (hs.slideInOutline) {
                var pThis = this;
                if (i < 8) img.onload = function() { pThis.preloadOutlineElement(i + 1); };
                else img.onload = function() { pThis.displayOutline(); };
        } else {
                this.wrapper.appendChild(this.outline[i]);
                if (i < 8) this.preloadOutlineElement(i + 1);
                else this.repositionOutline(0);
        }

        if (hs.safari) {
                this.outline[i].style.left = '10px';
                this.outline[i].style.top = '10px';
                hs.container.appendChild(img);
        }
        img.src = src;
};

HsExpander.prototype.displayOutline = function() {
        this.repositionOutline(12);
        for (i = 1; i <= 8; i++) {
                this.wrapper.appendChild(this.outline[i]);
        }
        this.hasOutline = true;

        for (i = 10, t = 0; i >= 0; i--, t += 50) {
                setTimeout(
                        'if (hs.expanders['+ this.key +']) hs.expanders['+ this.key +'].repositionOutline('+ i +')',
                        t
                );
        }
};

HsExpander.prototype.repositionOutline = function(offset) {
        if (this.isClosing) return;

        var w = this.wrapper.offsetWidth;
        var h = this.wrapper.offsetHeight;

        var fix = Array (
                Array (Array (1, 5), 'width', w - (2 * offset) - 20),
                Array (Array (1, 5), 'left', 10 + offset),
                Array (Array (1, 2, 8), 'top', -10 + offset),
                Array (Array (2, 4), 'left', w - 10 - offset),
                Array (Array (3, 3), 'left', w - offset),
                Array (Array (3, 7), 'top', 10 + offset),
                Array (Array (3, 7), 'height', h - (2 * offset) - 20),
                Array (Array (4, 6), 'top', h - 10 - offset),
                Array (Array (5, 5), 'top', h - offset),
                Array (Array (6, 7, 8), 'left', -10 + offset)
        );
        // strange khtml bug causes glitch in outline:
        if (navigator.vendor == 'KDE') {
                fix.push(Array(1, 5), 'height', (offset % 2) + 10);
        }
        for (i = 0; i < fix.length; i++) {
                for (j = 0; j < fix[i][0].length; j++) {
                        this.outline[fix[i][0][j]].style[fix[i][1]] = fix[i][2] +'px';
                }
        }

        if (offset == 0) this.onDisplayFinished();
};

HsExpander.prototype.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 +']', ''));
                                        }
                                }
                        }
                }
        }
};

HsExpander.prototype.focus = function() {
        // blur others
        for (i = 0; i < hs.expanders.length; i++) {
                if (hs.expanders[i] && i == hs.focusKey) {
                        var blurExp = hs.expanders[i];
                        blurExp.content.className += ' highslide-'+ blurExp.contentType +'-blur';
                        if (blurExp.caption) {
                                blurExp.caption.className += ' highslide-caption-blur';
                        }
                        if (blurExp.isImage) {
                                blurExp.content.style.cursor = hs.ie ? 'hand' : 'pointer';
                                blurExp.content.title = hs.focusTitle;
                        }
                }
        }

        // focus this
        this.wrapper.style.zIndex = hs.zIndexCounter++;

        this.content.className = 'highslide-'+ this.contentType;
        if (this.caption) {
                this.caption.className = this.caption.className.replace(' highslide-caption-blur', '');
        }

        if (this.isImage) {
                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;
        hs.addEventListener(document, 'keydown', hs.keyHandler);
};

HsExpander.prototype.doClose = function() {
        hs.removeEventListener(document, 'keydown', hs.keyHandler);
        try {
                if (!hs.expanders[this.key]) return;
                var exp = hs.expanders[this.key];

                this.isClosing = true;

                // remove children
                var n = this.wrapper.childNodes.length;
                for (i = n - 1; i > 0 ; i--) {
                        var child = this.wrapper.childNodes[i];
                        if (child != this.content) {
                                this.wrapper.removeChild(this.wrapper.childNodes[i]);
                        }
                }

                if (this.scrollerDiv && this.scrollerDiv != 'scrollingContent') exp[this.scrollerDiv].style.overflow = 'hidden';

                hs.outlinePreloader = 0;
                this.wrapper.style.width = null;

                var width = (this.isImage) ? this.content.width : parseInt(this.content.style.width);
                var height = (this.isImage) ? this.content.height : parseInt(this.content.style.height);
                this.changeSize(
                        parseInt(this.wrapper.style.left),
                        parseInt(this.wrapper.style.top),
                        width,
                        height,
                        this.thumbLeft - this.offsetBorderW + this.thumbOffsetBorderW,
                        this.thumbTop - this.offsetBorderH + this.thumbOffsetBorderH,
                        this.thumbWidth,
                        this.thumbHeight,
                        hs.restoreDuration,
                        hs.restoreSteps
                );

                setTimeout('if (hs.expanders['+ this.key +']) hs.expanders['+ this.key +'].onEndClose()', hs.restoreDuration);

        } catch(e) {
                hs.expanders[this.key].onEndClose();
        }
};

HsExpander.prototype.onEndClose = function () {
        this.thumb.style.visibility = 'visible';
        //this.content.style.visibility = 'hidden';

        if (hs.hideSelects) this.showHideElements('SELECT', 'visible');
        if (hs.hideIframes) this.showHideElements('IFRAME', 'visible');

        this.wrapper.parentNode.removeChild(this.wrapper);
        hs.expanders[this.key] = null;

        hs.cleanUp();
};

HsExpander.prototype.createOverlay = function (el, position, hideOnMouseOut, opacity) {
        if (typeof el == 'string' && hs.$(el)) {
                el = hs.$(el).cloneNode(true);
                el.id = null;
        }
        if (!el || typeof el == 'string' || !this.isImage) return;

        if (!position) var position = 'center center';
        var overlay = hs.createElement(
                'div',
                null,
                {
                        'position' : 'absolute',
                        'zIndex' : 3,
                        'visibility': 'hidden'
                },
                this.wrapper
        );
        if (opacity && opacity < 1) {
                if (hs.ie) overlay.style.filter = 'alpha(opacity='+ (opacity * 100) +')';
                else overlay.style.opacity = opacity;
        }
        el.className += ' highslide-display-block';
        overlay.appendChild(el);

        /*if (hs.ie && this.isImage) { // strange bug sometimes makes values wrong in the first def.
                this.offsetBorderW = hs.position(this.wrapper).x - hs.position(this.content).x;
                this.offsetBorderH = hs.position(this.wrapper).y - hs.position(this.content).y;
        }*/
        var left = this.offsetBorderW;
        var top = this.offsetBorderH;

        if (position.match(/^bottom/)) top += this.content.height - overlay.offsetHeight;
        if (position.match(/^center/)) top += (this.content.height - overlay.offsetHeight) / 2;
        if (position.match(/right$/)) left += this.content.width - overlay.offsetWidth;
        if (position.match(/center$/)) left += (this.content.width - overlay.offsetWidth) / 2;
        overlay.style.left = left +'px';
        overlay.style.top = top +'px';

        if (this.mouseIsOver || !hideOnMouseOut) overlay.style.visibility = 'visible';
        if (hideOnMouseOut) overlay.setAttribute('hideOnMouseOut', true);

        this.overlays.push(overlay);
};

HsExpander.prototype.createCustomOverlays = function() {
        for (i = 0; i < hs.overlays.length; i++) {
                var o = hs.overlays[i];
                if (o.thumbnailId == null || o.thumbnailId == this.thumbsUserSetId) {
                        this.createOverlay(o.overlayId, o.position, o.hideOnMouseOut, o.opacity);
                }
        }
};

HsExpander.prototype.onMouseOver = function () {
        this.mouseIsOver = true;
        for (i = 0; i < this.overlays.length; i++) {
                this.overlays[i].style.visibility = 'visible';
        }
};

HsExpander.prototype.onMouseOut = function(rel) {
        this.mouseIsOver = false;
        var hideThese = new Array();
        for (i = 0; i < this.overlays.length; i++) {
                var node = rel;
                while (node && node.parentNode) {
                        if (node == this.overlays[i]) return;
                        node = node.parentNode;
                }
                if (this.overlays[i].getAttribute('hideOnMouseOut')) {
                        hideThese.push(this.overlays[i]);
                }
        }
        for (i = 0; i < hideThese.length; i++) {
                hideThese[i].style.visibility = 'hidden';
        }
};

HsExpander.prototype.createFullExpand = function () {
        var a = hs.createElement(
                'a',
                {
                        href: 'javascript:hs.expanders['+ this.key +'].doFullExpand();',
                        title: hs.fullExpandTitle
                },
                {
                        background: 'url('+ hs.graphicsDir + hs.fullExpandIcon+')',
                        display: 'block',
                        margin: '0 10px 10px 0',
                        width: '45px',
                        height: '44px'
                }
        );

        this.createOverlay(a, 'bottom right', true, 0.75);
        this.fullExpandIcon = a;
};

HsExpander.prototype.doFullExpand = function () {
        try {

                var newLeft = parseInt(this.wrapper.style.left) - (this.fullExpandWidth - this.content.width) / 2;
                if (newLeft < hs.marginLeft) newLeft = hs.marginLeft;
                this.wrapper.style.left = newLeft +'px';

                var borderOffset = this.wrapper.offsetWidth - this.content.width;


                this.content.width = this.fullExpandWidth;
                this.content.height = this.fullExpandHeight;
                this.focus();

                this.fullExpandIcon.parentNode.removeChild(this.fullExpandIcon);

                this.wrapper.style.width = (this.content.width + borderOffset) +'px';

                if (this.outlineType) this.repositionOutline(0);

                // reposition overlays
                for (x in this.overlays) {
                        this.wrapper.removeChild(this.overlays[x]);
                }
                if (hs.showCredits) this.writeCredits();
                this.createCustomOverlays();

                this.redoShowHide();

        } catch(e) {
                window.location.href = hs.expanders[this.key].content.src;
        }
};

// on end move and resize
HsExpander.prototype.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 + this.spaceForCaption
        };
        if (hs.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
        if (hs.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);

};

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