]> mj.ucw.cz Git - gallery.git/commitdiff
HighSlide updated to include event mode
authorMartin Mares <mj@ucw.cz>
Mon, 3 Feb 2014 00:23:32 +0000 (01:23 +0100)
committerMartin Mares <mj@ucw.cz>
Sun, 8 Feb 2015 20:14:17 +0000 (21:14 +0100)
Also cleaned white space.

gal/highslide/highslide-with-gallery.js

index fa1333e252774c461acb9f8961f0c52926076020..5576e5ae3f977981ddfdb2125615afa48a6ac36f 100644 (file)
@@ -1,7 +1,7 @@
-/** 
+/**
  * Name:    Highslide JS
  * Version: 4.1.13 (2011-10-06)
- * Config:  default +slideshow +positioning +transitions +viewport +thumbstrip
+ * Config:  default +events +slideshow +positioning +transitions +viewport +thumbstrip
  * Author:  Torstein Hønsi
  * Support: www.highslide.com/support
  * License: www.highslide.com/#license
@@ -17,10 +17,10 @@ lang : {
        creditsText : 'Powered by <i>Highslide JS</i>',
        creditsTitle : 'Go to the Highslide JS homepage',
        previousText : 'Previous',
-       nextText : 'Next', 
+       nextText : 'Next',
        moveText : 'Move',
-       closeText : 'Close', 
-       closeTitle : 'Close (esc)', 
+       closeText : 'Close',
+       closeTitle : 'Close (esc)',
        resizeTitle : 'Resize',
        playText : 'Play',
        playTitle : 'Play slideshow (spacebar)',
@@ -33,7 +33,7 @@ lang : {
        number: 'Image %1 of %2',
        restoreTitle : 'Click to close image, click and drag to move. Use arrow keys for next and previous.'
 },
-// See http://highslide.com/ref for examples of settings  
+// See http://highslide.com/ref for examples of settings
 graphicsDir : 'highslide/graphics/',
 expandCursor : 'zoomin.cur', // null disables
 restoreCursor : 'zoomout.cur', // null disables
@@ -47,7 +47,7 @@ zIndexCounter : 1001, // adjust to other absolutely positioned elements
 loadingOpacity : 0.75,
 allowMultipleInstances: true,
 numberOfImagesToPreload : 5,
-outlineWhileAnimating : 2, // 0 = never, 1 = always, 2 = HTML only 
+outlineWhileAnimating : 2, // 0 = never, 1 = always, 2 = HTML only
 outlineStartOffset : 3, // ends at 10
 padToMinWidth : false, // pad the popup width to make room for wide caption
 fullExpandPosition : 'bottom right',
@@ -134,10 +134,10 @@ overrides : [
        'numberPosition',
        'transitions',
        'dimmingOpacity',
-       
+
        'width',
        'height',
-       
+
        'wrapperClassName',
        'minWidth',
        'minHeight',
@@ -186,7 +186,7 @@ createElement : function (tag, attribs, styles, parent, nopad) {
        if (attribs) hs.extend(el, attribs);
        if (nopad) hs.setStyles(el, {padding: 0, border: 'none', margin: 0});
        if (styles) hs.setStyles(el, styles);
-       if (parent) parent.appendChild(el);     
+       if (parent) parent.appendChild(el);
        return el;
 },
 
@@ -201,7 +201,7 @@ setStyles : function (el, styles) {
                        if (styles[x] > 0.99) el.style.removeAttribute('filter');
                        else el.style.filter = 'alpha(opacity='+ (styles[x] * 100) +')';
                }
-               else el.style[x] = styles[x];           
+               else el.style[x] = styles[x];
        }
 },
 animate: function(el, prop, opt) {
@@ -221,13 +221,13 @@ animate: function(el, prop, opt) {
        opt.curAnim = hs.extend({}, prop);
        for (var name in prop) {
                var e = new hs.fx(el, opt , name );
-               
+
                start = parseFloat(hs.css(el, name)) || 0;
                end = parseFloat(prop[name]);
                unit = name != 'opacity' ? 'px' : '';
-               
+
                e.custom( start, end, unit );
-       }       
+       }
 },
 css: function(el, prop) {
        if (el.style[prop]) {
@@ -238,24 +238,24 @@ css: function(el, prop) {
        } else {
                if (prop == 'opacity') prop = 'filter';
                var val = el.currentStyle[prop.replace(/\-(\w)/g, function (a, b){ return b.toUpperCase(); })];
-               if (prop == 'filter') 
-                       val = val.replace(/alpha\(opacity=([0-9]+)\)/, 
+               if (prop == 'filter')
+                       val = val.replace(/alpha\(opacity=([0-9]+)\)/,
                                function (a, b) { return b / 100 });
                return val === '' ? 1 : val;
-       } 
+       }
 },
 
 getPageSize : function () {
-       var d = document, w = window, iebody = d.compatMode && d.compatMode != 'BackCompat' 
+       var d = document, w = window, iebody = d.compatMode && d.compatMode != 'BackCompat'
                ? d.documentElement : d.body,
                ieLt9 = hs.ie && (hs.uaVersion < 9 || typeof pageXOffset == 'undefined');
-       
-       var width = ieLt9 ? iebody.clientWidth : 
+
+       var width = ieLt9 ? iebody.clientWidth :
                        (d.documentElement.clientWidth || self.innerWidth),
                height = ieLt9 ? iebody.clientHeight : self.innerHeight;
        hs.page = {
                width: width,
-               height: height,         
+               height: height,
                scrollLeft: ieLt9 ? iebody.scrollLeft : pageXOffset,
                scrollTop: ieLt9 ? iebody.scrollTop : pageYOffset
        };
@@ -278,8 +278,8 @@ getPosition : function(el)  {
 
 expand : function(a, params, custom, type) {
        if (!a) a = hs.createElement('a', null, { display: 'none' }, hs.container);
-       if (typeof a.getParams == 'function') return params;    
-       try {   
+       if (typeof a.getParams == 'function') return params;
+       try {
                new hs.Expander(a, params, custom);
                return false;
        } catch (e) { return true; }
@@ -287,7 +287,7 @@ expand : function(a, params, custom, type) {
 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)) {
+               if ((new RegExp(className)).test(els[i].className)) {
                        return els[i];
                }
        }
@@ -307,7 +307,7 @@ replaceLang : function(s) {
 
 
 focusTopmost : function() {
-       var topZ = 0, 
+       var topZ = 0,
                topmostKey = -1,
                expanders = hs.expanders,
                exp,
@@ -317,7 +317,7 @@ focusTopmost : function() {
                if (exp) {
                        zIndex = exp.wrapper.style.zIndex;
                        if (zIndex && zIndex > topZ) {
-                               topZ = zIndex;                          
+                               topZ = zIndex;
                                topmostKey = i;
                        }
                }
@@ -330,8 +330,8 @@ 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] : 
+
+       return (p && typeof p[param] != 'undefined') ? p[param] :
                (typeof hs[param] != 'undefined' ? hs[param] : null);
 },
 
@@ -365,14 +365,15 @@ dim : function(exp) {
                                className: 'highslide-dimming highslide-viewport-size',
                                owner: '',
                                onclick: function() {
-                                       
+                                       if (hs.fireEvent(hs, 'onDimmerClick'))
+
                                                hs.close();
                                }
                        }, {
-                visibility: 'visible',
+                               visibility: 'visible',
                                opacity: 0
                        }, hs.container, true);
-                       
+
                if (/(Android|iPad|iPhone|iPod)/.test(navigator.userAgent)) {
                        var body = document.body;
                        function pixDimmerSize() {
@@ -389,7 +390,7 @@ dim : function(exp) {
 
        var isNew = hs.dimmer.owner == '';
        hs.dimmer.owner += '|'+ exp.key;
-       
+
        if (isNew) {
                if (hs.geckoMac && hs.dimmingGeckoFix)
                        hs.setStyles(hs.dimmer, {
@@ -422,7 +423,7 @@ transit : function (adj, exp) {
        hs.removeEventListener(document, window.opera ? 'keypress' : 'keydown', hs.keyHandler);
        try {
                hs.upcoming = adj;
-               adj.onclick();          
+               adj.onclick();
        } catch (e){
                hs.last = hs.upcoming = null;
        }
@@ -444,15 +445,16 @@ previous : function (el) {
 },
 
 next : function (el) {
-       return hs.previousOrNext(el, 1);        
+       return hs.previousOrNext(el, 1);
 },
 
 keyHandler : function(e) {
        if (!e) e = window.event;
        if (!e.target) e.target = e.srcElement; // ie
        if (typeof e.target.form != 'undefined') return true; // form element has focus
+       if (!hs.fireEvent(hs, 'onKeyDown', e)) return true;
        var exp = hs.getExpander();
-       
+
        var op = null;
        switch (e.keyCode) {
                case 70: // f
@@ -478,10 +480,10 @@ keyHandler : function(e) {
        }
        if (op !== null) {if (op != 2)hs.removeEventListener(document, window.opera ? 'keypress' : 'keydown', hs.keyHandler);
                if (!hs.enableKeyListener) return true;
-               
+
                if (e.preventDefault) e.preventDefault();
-       else e.returnValue = false;
-       if (exp) {
+               else e.returnValue = false;
+               if (exp) {
                        if (op == 0) {
                                exp.close();
                        } else if (op == 2) {
@@ -538,7 +540,7 @@ getWrapperKey : function (element, expOnly) {
                        el = el.parentNode;
                }
        }
-       return null; 
+       return null;
 },
 
 getExpander : function (el, expOnly) {
@@ -556,13 +558,16 @@ reOrder : function () {
        for (var i = 0; i < hs.expanders.length; i++)
                if (hs.expanders[i] && hs.expanders[i].isExpanded) hs.focusTopmost();
 },
+fireEvent : function (obj, evt, args) {
+       return obj && obj[evt] ? (obj[evt](obj, args) !== false) : true;
+},
 
-mouseClickHandler : function(e) 
-{      
+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)))
@@ -571,26 +576,26 @@ mouseClickHandler : function(e)
        }
        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.pos, 
-                               width: exp.x.size, 
-                               top: exp.y.pos, 
-                               height: exp.y.size, 
-                               clickX: e.clientX, 
+                       hs.dragArgs = {
+                               exp: exp ,
+                               type: match[1],
+                               left: exp.x.pos,
+                               width: exp.x.size,
+                               top: exp.y.pos,
+                               height: exp.y.size,
+                               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;
@@ -598,25 +603,28 @@ mouseClickHandler : function(e)
                        return false;
                }
        } else if (e.type == 'mouseup') {
-               
+
                hs.removeEventListener(document, 'mousemove', hs.dragHandler);
-               
+
                if (hs.dragArgs) {
-                       if (hs.styleRestoreCursor && hs.dragArgs.type == 'image') 
+                       if (hs.styleRestoreCursor && 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)) {
+                               if (hs.fireEvent(exp, 'onImageClick'))
                                exp.close();
-                       } 
+                       }
                        else if (hasDragged || (!hasDragged && hs.hasHtmlExpanders)) {
                                hs.dragArgs.exp.doShowHide('hidden');
                        }
+
+                       if (hasDragged) hs.fireEvent(hs.dragArgs.exp, 'onDrop', hs.dragArgs);
                        hs.hasFocused = false;
                        hs.dragArgs = null;
-               
+
                } else if (/highslide-image-blur/.test(el.className)) {
-                       el.style.cursor = hs.styleRestoreCursor;                
+                       el.style.cursor = hs.styleRestoreCursor;
                }
        }
        return false;
@@ -627,16 +635,17 @@ dragHandler : function(e)
        if (!hs.dragArgs) return true;
        if (!e) e = window.event;
        var a = hs.dragArgs, exp = a.exp;
-       
+
        a.dX = e.clientX - a.clickX;
-       a.dY = e.clientY - a.clickY;    
-       
+       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 (!hs.fireEvent(exp, 'onDrag', a)) return false;
+
                if (a.type == 'resize') exp.resize(a);
                else {
                        exp.moveTo(a.left + a.dX, a.top + a.dY);
@@ -649,21 +658,22 @@ dragHandler : function(e)
 wrapperMouseHandler : function (e) {
        try {
                if (!e) e = window.event;
-               var over = /mouseover/i.test(e.type); 
+               var over = /mouseover/i.test(e.type);
                if (!e.target) e.target = e.srcElement; // ie
-               if (!e.relatedTarget) e.relatedTarget = 
+               if (!e.relatedTarget) e.relatedTarget =
                        over ? e.fromElement : e.toElement; // ie
                var exp = hs.getExpander(e.target);
                if (!exp.isExpanded) return;
-               if (!exp || !e.relatedTarget || hs.getExpander(e.relatedTarget, true) == exp 
+               if (!exp || !e.relatedTarget || hs.getExpander(e.relatedTarget, true) == exp
                        || hs.dragArgs) return;
+               hs.fireEvent(exp, over ? 'onMouseOver' : 'onMouseOut', e);
                for (var i = 0; i < exp.overlays.length; i++) (function() {
                        var o = hs.$('hsId'+ exp.overlays[i]);
                        if (o && o.hideOnMouseOut) {
                                if (over) hs.setStyles(o, { visibility: 'visible', display: '' });
                                hs.animate(o, { opacity: over ? o.opacity : 0 }, o.dur);
                        }
-               })();   
+               })();
        } catch (e) {}
 },
 addEventListener : function (el, event, func) {
@@ -679,7 +689,7 @@ addEventListener : function (el, event, func) {
                } catch (e) {
                        el['on'+ event] = func;
                }
-       } 
+       }
 },
 
 removeEventListener : function (el, event, func) {
@@ -697,7 +707,7 @@ removeEventListener : function (el, event, func) {
 preloadFullImage : function (i) {
        if (hs.continuePreloading && hs.preloadTheseImages[i] && hs.preloadTheseImages[i] != 'undefined') {
                var img = document.createElement('img');
-               img.onload = function() { 
+               img.onload = function() {
                        img = null;
                        hs.preloadFullImage(i + 1);
                };
@@ -706,18 +716,18 @@ preloadFullImage : function (i) {
 },
 preloadImages : function (number) {
        if (number && typeof number != 'object') hs.numberOfImagesToPreload = number;
-       
+
        var arr = hs.getAnchors();
        for (var i = 0; i < arr.images.length && i < hs.numberOfImagesToPreload; i++) {
                hs.push(hs.preloadTheseImages, hs.getSrc(arr.images[i]));
        }
-       
+
        // preload outlines
        if (hs.outlineType)     new hs.Outline(hs.outlineType, function () { hs.preloadFullImage(0)} );
        else
-       
+
        hs.preloadFullImage(0);
-       
+
        // preload cursor
        if (hs.restoreCursor) var cur = hs.createElement('img', { src: hs.graphicsDir + hs.restoreCursor });
 },
@@ -725,27 +735,27 @@ preloadImages : function (number) {
 
 init : function () {
        if (!hs.container) {
-       
+
                hs.ieLt7 = hs.ie && hs.uaVersion < 7;
                hs.ieLt9 = hs.ie && hs.uaVersion < 9;
-               
+
                hs.getPageSize();
                for (var x in hs.langDefaults) {
                        if (typeof hs[x] != 'undefined') hs.lang[x] = hs[x];
-                       else if (typeof hs.lang[x] == 'undefined' && typeof hs.langDefaults[x] != 'undefined') 
+                       else if (typeof hs.lang[x] == 'undefined' && typeof hs.langDefaults[x] != 'undefined')
                                hs.lang[x] = hs.langDefaults[x];
                }
-               
+
                hs.container = hs.createElement('div', {
                                className: 'highslide-container'
                        }, {
                                position: 'absolute',
-                               left: 0, 
-                               top: 0, 
-                               width: '100%', 
+                               left: 0,
+                               top: 0,
+                               width: '100%',
                                zIndex: hs.zIndexCounter,
                                direction: 'ltr'
-                       }, 
+                       },
                        document.body,
                        true
                );
@@ -768,8 +778,8 @@ init : function () {
                                visibility: (hs.safari && hs.uaVersion < 525) ? 'visible' : 'hidden'
                        }, hs.container, 1
                );
-               
-               // http://www.robertpenner.com/easing/ 
+
+               // http://www.robertpenner.com/easing/
                Math.linearTween = function (t, b, c, d) {
                        return c*t/d + b;
                };
@@ -779,10 +789,11 @@ init : function () {
                Math.easeOutQuad = function (t, b, c, d) {
                        return -c *(t/=d)*(t-2) + b;
                };
-               
+
                hs.hideSelects = hs.ieLt7;
-               hs.hideIframes = ((window.opera && hs.uaVersion < 9) || navigator.vendor == 'KDE' 
+               hs.hideIframes = ((window.opera && hs.uaVersion < 9) || navigator.vendor == 'KDE'
                        || (hs.ieLt7 && hs.uaVersion < 5.5));
+               hs.fireEvent(this, 'onActivate');
        }
 },
 ready : function() {
@@ -793,7 +804,7 @@ ready : function() {
 
 updateAnchors : function() {
        var el, els, all = [], images = [],groups = {}, re;
-               
+
        for (var i = 0; i < hs.openerTagNames.length; i++) {
                els = document.getElementsByTagName(hs.openerTagNames[i]);
                for (var j = 0; j < els.length; j++) {
@@ -810,7 +821,7 @@ updateAnchors : function() {
        }
        hs.anchors = { all: all, groups: groups, images: images };
        return hs.anchors;
-       
+
 },
 
 getAnchors : function() {
@@ -834,7 +845,7 @@ hs.fx = function( elem, options, prop ){
 hs.fx.prototype = {
        update: function(){
                (hs.fx.step[this.prop] || hs.fx.step._default)(this);
-               
+
                if (this.options.step)
                        this.options.step.call(this.elem, this.now, this);
 
@@ -920,17 +931,17 @@ hs.Outline =  function (outlineType, onLoad) {
        this.onLoad = onLoad;
        this.outlineType = outlineType;
        var v = hs.uaVersion, tr;
-       
+
        this.hasAlphaImageLoader = hs.ie && hs.uaVersion < 7;
        if (!outlineType) {
                if (onLoad) onLoad();
                return;
        }
-       
+
        hs.init();
        this.table = hs.createElement(
-               'table', { 
-                       cellSpacing: 0 
+               'table', {
+                       cellSpacing: 0
                }, {
                        visibility: 'hidden',
                        position: 'absolute',
@@ -941,7 +952,7 @@ hs.Outline =  function (outlineType, onLoad) {
                true
        );
        var tbody = hs.createElement('tbody', null, null, this.table, 1);
-       
+
        this.td = [];
        for (var i = 0; i <= 8; i++) {
                if (i % 3 == 0) tr = hs.createElement('tr', null, { height: 'auto' }, tbody, true);
@@ -950,21 +961,21 @@ hs.Outline =  function (outlineType, onLoad) {
                hs.setStyles(this.td[i], style);
        }
        this.td[4].className = outlineType +' highslide-outline';
-       
-       this.preloadGraphic(); 
+
+       this.preloadGraphic();
 };
 
 hs.Outline.prototype = {
 preloadGraphic : function () {
        var src = hs.graphicsDir + (hs.outlinesDir || "outlines/")+ this.outlineType +".png";
-                               
+
        var appendTo = hs.safari && hs.uaVersion < 525 ? hs.container : null;
-       this.graphic = hs.createElement('img', null, { position: 'absolute', 
+       this.graphic = hs.createElement('img', null, { position: 'absolute',
                top: '-9999px' }, appendTo, true); // for onload trigger
-       
+
        var pThis = this;
        this.graphic.onload = function() { pThis.onGraphicLoad(); };
-       
+
        this.graphic.src = src;
 },
 
@@ -977,23 +988,23 @@ onGraphicLoad : function () {
                        if (this.hasAlphaImageLoader) {
                                var w = (i == 1 || i == 7) ? '100%' : this.graphic.width +'px';
                                var div = hs.createElement('div', null, { width: '100%', height: '100%', position: 'relative', overflow: 'hidden'}, this.td[i], true);
-                               hs.createElement ('div', null, { 
-                                               filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale, src='"+ this.graphic.src + "')", 
+                               hs.createElement ('div', null, {
+                                               filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale, src='"+ this.graphic.src + "')",
                                                position: 'absolute',
-                                               width: w, 
+                                               width: w,
                                                height: this.graphic.height +'px',
                                                left: (pos[i][0]*o)+'px',
                                                top: (pos[i][1]*o)+'px'
-                                       }, 
+                                       },
                                div,
                                true);
                        } else {
                                hs.setStyles(this.td[i], { background: 'url('+ this.graphic.src +') '+ (pos[i][0]*o)+'px '+(pos[i][1]*o)+'px'});
                        }
-                       
-                       if (window.opera && (i == 3 || i ==5)) 
+
+                       if (window.opera && (i == 3 || i ==5))
                                hs.createElement('div', null, dim, this.td[i], true);
-                       
+
                        hs.setStyles (this.td[i], dim);
                }
        }
@@ -1002,7 +1013,7 @@ onGraphicLoad : function () {
        hs.pendingOutlines[this.outlineType] = this;
        if (this.onLoad) this.onLoad();
 },
-       
+
 setPosition : function (pos, offset, vis, dur, easing) {
        var exp = this.exp,
                stl = exp.wrapper.style,
@@ -1013,25 +1024,25 @@ setPosition : function (pos, offset, vis, dur, easing) {
                        w: exp.x.get('wsize') - 2 * offset,
                        h: exp.y.get('wsize') - 2 * offset
                };
-       if (vis) this.table.style.visibility = (pos.h >= 4 * this.offset) 
+       if (vis) this.table.style.visibility = (pos.h >= 4 * this.offset)
                ? 'visible' : 'hidden';
        hs.setStyles(this.table, {
                left: (pos.x - this.offset) +'px',
                top: (pos.y - this.offset) +'px',
                width: (pos.w + 2 * this.offset) +'px'
        });
-       
+
        pos.w -= 2 * this.offset;
        pos.h -= 2 * this.offset;
        hs.setStyles (this.td[4], {
                width: pos.w >= 0 ? pos.w +'px' : 0,
                height: pos.h >= 0 ? pos.h +'px' : 0
        });
-       if (this.hasAlphaImageLoader) this.td[3].style.height 
-               = this.td[5].style.height = this.td[4].style.height;    
-       
+       if (this.hasAlphaImageLoader) this.td[3].style.height
+               = this.td[5].style.height = this.td[4].style.height;
+
 },
-       
+
 destroy : function(hide) {
        if (hide) this.table.style.visibility = 'hidden';
        else hs.discardElement(this.table);
@@ -1068,42 +1079,42 @@ get : function(key) {
                        return this.get('wsize') + (this.exp.outline ? 2*this.exp.outline.offset : 0);
                case 'imgPad':
                        return this.imgSize ? Math.round((this.size - this.imgSize) / 2) : 0;
-               
+
        }
 },
 calcBorders: function() {
        // correct for borders
        this.cb = (this.exp.content['offset'+ this.ucwh] - this.t) / 2;
-       
+
        this.marginMax = hs['margin'+ this.ucrb];
 },
 calcThumb: function() {
-       this.t = this.exp.el[this.wh] ? parseInt(this.exp.el[this.wh]) : 
+       this.t = this.exp.el[this.wh] ? parseInt(this.exp.el[this.wh]) :
                this.exp.el['offset'+ this.ucwh];
        this.tpos = this.exp.tpos[this.dim];
        this.tb = (this.exp.el['offset'+ this.ucwh] - this.t) / 2;
        if (this.tpos == 0 || this.tpos == -1) {
-               this.tpos = (hs.page[this.wh] / 2) + hs.page['scroll'+ this.uclt];              
+               this.tpos = (hs.page[this.wh] / 2) + hs.page['scroll'+ this.uclt];
        };
 },
 calcExpanded: function() {
        var exp = this.exp;
        this.justify = 'auto';
-       
+
        // get alignment
        if (exp.align == 'center') this.justify = 'center';
        else if (new RegExp(this.lt).test(exp.anchor)) this.justify = null;
        else if (new RegExp(this.rb).test(exp.anchor)) this.justify = 'max';
-       
-       
+
+
        // size and position
        this.pos = this.tpos - this.cb + this.tb;
-       
+
        if (this.maxHeight && this.dim == 'x')
-               exp.maxWidth = Math.min(exp.maxWidth || this.full, exp.maxHeight * this.full / exp.y.full); 
-               
+               exp.maxWidth = Math.min(exp.maxWidth || this.full, exp.maxHeight * this.full / exp.y.full);
+
        this.size = Math.min(this.full, exp['max'+ this.ucwh] || this.full);
-       this.minSize = exp.allowSizeReduction ? 
+       this.minSize = exp.allowSizeReduction ?
                Math.min(exp['min'+ this.ucwh], this.full) :this.full;
        if (exp.isImage && exp.useBox)  {
                this.size = exp[this.wh];
@@ -1123,7 +1134,7 @@ setSize: function(i) {
                exp.content.style[this.lt] = this.get('imgPad')+'px';
        } else
        this.size = i;
-       
+
        exp.content.style[this.wh] = i +'px';
        exp.wrapper.style[this.wh] = this.get('wsize') +'px';
        if (exp.outline) exp.outline.setPosition();
@@ -1135,10 +1146,10 @@ setSize: function(i) {
 },
 setPos: function(i) {
        this.pos = i;
-       this.exp.wrapper.style[this.lt] = i +'px';      
-       
+       this.exp.wrapper.style[this.lt] = i +'px';
+
        if (this.exp.outline) this.exp.outline.setPosition();
-       
+
 }
 };
 
@@ -1148,12 +1159,12 @@ hs.Expander = function(a, params, custom, contentType) {
                        new hs.Expander(a, params, custom, contentType);
                });
                return;
-       } 
+       }
        this.a = a;
        this.custom = custom;
        this.contentType = contentType || 'image';
        this.isImage = !this.isHtml;
-       
+
        hs.continuePreloading = false;
        this.overlays = [];
        this.last = hs.last;
@@ -1167,20 +1178,21 @@ hs.Expander = function(a, params, custom, contentType) {
                        params[name] : hs[name];
        }
        if (!this.src) this.src = a.href;
-       
+
        // get thumb
        var el = (params && params.thumbnailId) ? hs.$(params.thumbnailId) : a;
        el = this.thumb = el.getElementsByTagName('img')[0] || el;
        this.thumbsUserSetId = el.id || a.id;
-       
+       if (!hs.fireEvent(this, 'onInit')) return true;
+
        // check if already open
        for (var i = 0; i < hs.expanders.length; i++) {
-               if (hs.expanders[i] && hs.expanders[i].a == a 
+               if (hs.expanders[i] && hs.expanders[i].a == a
                        && !(this.last && this.transitions[1] == 'crossfade')) {
                        hs.expanders[i].focus();
                        return false;
                }
-       }       
+       }
 
        // cancel other
        if (!hs.allowSimultaneousLoading) for (var i = 0; i < hs.expanders.length; i++) {
@@ -1194,7 +1206,7 @@ hs.Expander = function(a, params, custom, contentType) {
                if (typeof hs.focusKey != 'undefined' && hs.expanders[hs.focusKey])
                        hs.expanders[hs.focusKey].close();
        }
-       
+
        // initiate metrics
        this.el = el;
        this.tpos = this.pageOrigin || hs.getPosition(el);
@@ -1212,28 +1224,28 @@ hs.Expander = function(a, params, custom, contentType) {
                        position: 'absolute',
                        zIndex: hs.zIndexCounter += 2
                }, null, true );
-       
+
        this.wrapper.onmouseover = this.wrapper.onmouseout = hs.wrapperMouseHandler;
        if (this.contentType == 'image' && this.outlineWhileAnimating == 2)
                this.outlineWhileAnimating = 0;
-       
+
        // get the outline
-       if (!this.outlineType 
+       if (!this.outlineType
                || (this.last && this.isImage && this.transitions[1] == 'crossfade')) {
                this[this.contentType +'Create']();
-       
+
        } else if (hs.pendingOutlines[this.outlineType]) {
                this.connectOutline();
                this[this.contentType +'Create']();
-       
+
        } else {
                this.showLoading();
                var exp = this;
-               new hs.Outline(this.outlineType, 
+               new hs.Outline(this.outlineType,
                        function () {
                                exp.connectOutline();
                                exp[exp.contentType +'Create']();
-                       } 
+                       }
                );
        }
        return true;
@@ -1254,112 +1266,116 @@ connectOutline : function() {
 
 showLoading : function() {
        if (this.onLoadStarted || this.loading) return;
-       
+
        this.loading = hs.loading;
        var exp = this;
        this.loading.onclick = function() {
                exp.cancelLoading();
        };
-       var exp = this, 
+
+
+       if (!hs.fireEvent(this, 'onShowLoading')) return;
+       var exp = this,
                l = this.x.get('loadingPos') +'px',
                t = this.y.get('loadingPos') +'px';
-       if (!tgt && this.last && this.transitions[1] == 'crossfade') 
-               var tgt = this.last; 
+       if (!tgt && this.last && this.transitions[1] == 'crossfade')
+               var tgt = this.last;
        if (tgt) {
                l = tgt.x.get('loadingPosXfade') +'px';
                t = tgt.y.get('loadingPosXfade') +'px';
                this.loading.style.zIndex = hs.zIndexCounter++;
        }
-       setTimeout(function () { 
+       setTimeout(function () {
                if (exp.loading) hs.setStyles(exp.loading, { left: l, top: t, zIndex: hs.zIndexCounter++ })}
        , 100);
 },
 
 imageCreate : function() {
        var exp = this;
-       
+
        var img = document.createElement('img');
-    this.content = img;
-    img.onload = function () {
-       if (hs.expanders[exp.key]) exp.contentLoaded(); 
+       this.content = img;
+       img.onload = function () {
+               if (hs.expanders[exp.key]) exp.contentLoaded();
        };
-    if (hs.blockRightClick) img.oncontextmenu = function() { return false; };
-    img.className = 'highslide-image';
-    hs.setStyles(img, {
-       visibility: 'hidden',
-       display: 'block',
-       position: 'absolute',
+       if (hs.blockRightClick) img.oncontextmenu = function() { return false; };
+       img.className = 'highslide-image';
+       hs.setStyles(img, {
+               visibility: 'hidden',
+               display: 'block',
+               position: 'absolute',
                maxWidth: '9999px',
                zIndex: 3
        });
-    img.title = hs.lang.restoreTitle;
+       img.title = hs.lang.restoreTitle;
        if (hs.safari && hs.uaVersion < 525) hs.container.appendChild(img);
-    if (hs.ie && hs.flushImgSize) img.src = null;
+       if (hs.ie && hs.flushImgSize) img.src = null;
        img.src = this.src;
-       
+
        this.showLoading();
 },
 
 contentLoaded : function() {
-       try {   
+       try {
                if (!this.content) return;
                this.content.onload = null;
                if (this.onLoadStarted) return;
                else this.onLoadStarted = true;
-               
+
                var x = this.x, y = this.y;
-               
+
                if (this.loading) {
                        hs.setStyles(this.loading, { top: '-9999px' });
                        this.loading = null;
-               }       
+                       hs.fireEvent(this, 'onHideLoading');
+               }
                        x.full = this.content.width;
                        y.full = this.content.height;
-                       
+
                        hs.setStyles(this.content, {
                                width: x.t +'px',
                                height: y.t +'px'
                        });
                        this.wrapper.appendChild(this.content);
                        hs.container.appendChild(this.wrapper);
-               
+
                x.calcBorders();
                y.calcBorders();
-               
+
                hs.setStyles (this.wrapper, {
                        left: (x.tpos + x.tb - x.cb) +'px',
                        top: (y.tpos + x.tb - y.cb) +'px'
                });
-               
-               
+
+
                this.initSlideshow();
                this.getOverlays();
-               
+
                var ratio = x.full / y.full;
                x.calcExpanded();
                this.justify(x);
-               
+
                y.calcExpanded();
                this.justify(y);
                if (this.overlayBox) this.sizeOverlayBox(0, 1);
 
-               
+
                if (this.allowSizeReduction) {
                                this.correctRatio(ratio);
-                       var ss = this.slideshow;                        
+                       var ss = this.slideshow;
                        if (ss && this.last && ss.controls && ss.fixedControls) {
                                var pos = ss.overlayOptions.position || '', p;
                                for (var dim in hs.oPos) for (var i = 0; i < 5; i++) {
                                        p = this[dim];
                                        if (pos.match(hs.oPos[dim][i])) {
-                                               p.pos = this.last[dim].pos 
+                                               p.pos = this.last[dim].pos
                                                        + (this.last[dim].p1 - p.p1)
                                                        + (this.last[dim].size - p.size) * [0, 0, .5, 1, 1][i];
                                                if (ss.fixedControls == 'fit') {
                                                        if (p.pos + p.size + p.p1 + p.p2 > p.scroll + p.clientSize - p.marginMax)
                                                                p.pos = p.scroll + p.clientSize - p.size - p.marginMin - p.marginMax - p.p1 - p.p2;
-                                                       if (p.pos < p.scroll + p.marginMin) p.pos = p.scroll + p.marginMin; 
-                                               } 
+                                                       if (p.pos < p.scroll + p.marginMin) p.pos = p.scroll + p.marginMin;
+                                               }
                                        }
                                }
                        }
@@ -1369,7 +1385,7 @@ contentLoaded : function() {
                        }
                }
                this.show();
-               
+
        } catch (e) {
                this.error(e);
        }
@@ -1377,21 +1393,21 @@ contentLoaded : function() {
 
 justify : function (p, moveOnly) {
        var tgtArr, tgt = p.target, dim = p == this.x ? 'x' : 'y';
-       
+
        if (tgt && tgt.match(/ /)) {
                tgtArr = tgt.split(' ');
                tgt = tgtArr[0];
        }
        if (tgt && hs.$(tgt)) {
                p.pos = hs.getPosition(hs.$(tgt))[dim];
-               if (tgtArr && tgtArr[1] && tgtArr[1].match(/^[-]?[0-9]+px$/)) 
+               if (tgtArr && tgtArr[1] && tgtArr[1].match(/^[-]?[0-9]+px$/))
                        p.pos += parseInt(tgtArr[1]);
                if (p.size < p.minSize) p.size = p.minSize;
-               
+
        } else if (p.justify == 'auto' || p.justify == 'center') {
-       
+
                var hasMovedMin = false;
-               
+
                var allowReduce = p.exp.allowSizeReduction;
                if (p.justify == 'center')
                        p.pos = Math.round(p.scroll + (p.clientSize + p.marginMin - p.marginMax - p.get('wsize')) / 2);
@@ -1399,7 +1415,7 @@ justify : function (p, moveOnly) {
                        p.pos = Math.round(p.pos - ((p.get('wsize') - p.t) / 2));
                if (p.pos < p.scroll + p.marginMin) {
                        p.pos = p.scroll + p.marginMin;
-                       hasMovedMin = true;             
+                       hasMovedMin = true;
                }
                if (!moveOnly && p.size < p.minSize) {
                        p.size = p.minSize;
@@ -1413,37 +1429,37 @@ justify : function (p, moveOnly) {
                        } else { // image larger than viewport
                                p.pos = p.scroll + p.marginMin;
                                if (!moveOnly && allowReduce) p.size = p.get(dim == 'y' ? 'fitsize' : 'maxsize');
-                       }                       
+                       }
                }
-               
+
                if (!moveOnly && p.size < p.minSize) {
                        p.size = p.minSize;
                        allowReduce = false;
                }
-               
-       
+
+
        } else if (p.justify == 'max') {
                p.pos = Math.floor(p.pos - p.size + p.t);
        }
-       
-               
+
+
        if (p.pos < p.marginMin) {
                var tmpMin = p.pos;
-               p.pos = p.marginMin; 
-               
+               p.pos = p.marginMin;
+
                if (allowReduce && !moveOnly) p.size = p.size - (p.pos - tmpMin);
-               
+
        }
 },
 
 correctRatio : function(ratio) {
-       var x = this.x, 
+       var x = this.x,
                y = this.y,
                changed = false,
                xSize = Math.min(x.full, x.size),
                ySize = Math.min(y.full, y.size),
                useBox = (this.useBox || hs.padToMinWidth);
-       
+
        if (xSize / ySize > ratio) { // width greater
                xSize = ySize * ratio;
                if (xSize < x.minSize) { // below minWidth
@@ -1451,12 +1467,12 @@ correctRatio : function(ratio) {
                        ySize = xSize / ratio;
                }
                changed = true;
-       
+
        } else if (xSize / ySize < ratio) { // height greater
                ySize = xSize / ratio;
                changed = true;
        }
-       
+
        if (hs.padToMinWidth && x.full < x.minSize) {
                x.imgSize = x.full;
                y.size = y.imgSize = y.full;
@@ -1476,19 +1492,19 @@ correctRatio : function(ratio) {
                x.pos = x.tpos - x.cb + x.tb;
                x.minSize = x.size;
                this.justify(x, true);
-       
+
                y.pos = y.tpos - y.cb + y.tb;
                y.minSize = y.size;
                this.justify(y, true);
                if (this.overlayBox) this.sizeOverlayBox();
        }
-       
-       
+
+
 },
 fitOverlayBox : function(ratio, changed) {
        var x = this.x, y = this.y;
        if (this.overlayBox) {
-               while (y.size > this.minHeight && x.size > this.minWidth 
+               while (y.size > this.minHeight && x.size > this.minWidth
                                &&  y.get('wsize') > y.get('fitsize')) {
                        y.size -= 10;
                        if (ratio) x.size = y.size * ratio;
@@ -1502,8 +1518,9 @@ fitOverlayBox : function(ratio, changed) {
 show : function () {
        var x = this.x, y = this.y;
        this.doShowHide('hidden');
+       hs.fireEvent(this, 'onBeforeExpand');
        if (this.slideshow && this.slideshow.thumbstrip) this.slideshow.thumbstrip.selectThumb();
-       
+
        // Apply size change
        this.changeSize(
                1, {
@@ -1528,23 +1545,23 @@ changeSize : function(up, to, dur) {
        // transition
        var trans = this.transitions,
        other = up ? (this.last ? this.last.a : null) : hs.upcoming,
-       t = (trans[1] && other 
+       t = (trans[1] && other
                        && hs.getParam(other, 'transitions')[1] == trans[1]) ?
                trans[1] : trans[0];
-               
+
        if (this[t] && t != 'expand') {
                this[t](up, to);
                return;
        }
-       
+
        if (this.outline && !this.outlineWhileAnimating) {
                if (up) this.outline.setPosition();
                else this.outline.destroy();
        }
-       
-       
+
+
        if (!up) this.destroyOverlays();
-       
+
        var exp = this,
                x = exp.x,
                y = exp.y,
@@ -1552,7 +1569,7 @@ changeSize : function(up, to, dur) {
        if (!up) easing = this.easingClose || easing;
        var after = up ?
                function() {
-                               
+
                        if (exp.outline) exp.outline.table.style.visibility = "visible";
                        setTimeout(function() {
                                exp.afterExpand();
@@ -1581,7 +1598,7 @@ changeSize : function(up, to, dur) {
                                        x: x.tpos + (x.pos - x.tpos) * fac,
                                        y: y.tpos + (y.pos - y.tpos) * fac
                                };
-                               exp.outline.setPosition(pos, 0, 1);                             
+                               exp.outline.setPosition(pos, 0, 1);
                        }
                }
        });
@@ -1598,20 +1615,20 @@ changeSize : function(up, to, dur) {
 fade : function(up, to) {
        this.outlineWhileAnimating = false;
        var exp = this, t = up ? hs.expandDuration : 0;
-       
+
        if (up) {
                hs.animate(this.wrapper, to.wrapper, 0);
                hs.setStyles(this.wrapper, { opacity: 0, visibility: 'visible' });
                hs.animate(this.content, to.content, 0);
                this.content.style.visibility = 'visible';
 
-               hs.animate(this.wrapper, { opacity: 1 }, t, null, 
+               hs.animate(this.wrapper, { opacity: 1 }, t, null,
                        function() { exp.afterExpand(); });
        }
-       
+
        if (this.outline) {
                this.outline.table.style.zIndex = this.wrapper.style.zIndex;
-               var dir = up || -1, 
+               var dir = up || -1,
                        offset = this.outline.offset,
                        startOff = up ? 3 : offset,
                        endOff = up? offset : 3;
@@ -1624,24 +1641,24 @@ fade : function(up, to) {
                        })();
                }
        }
-       
-       
+
+
        if (up) {}//setTimeout(function() { exp.afterExpand(); }, t+50);
        else {
                setTimeout( function() {
                        if (exp.outline) exp.outline.destroy(exp.preserveContent);
-                       
+
                        exp.destroyOverlays();
-       
+
                        hs.animate( exp.wrapper, { opacity: 0 }, hs.restoreDuration, null, function(){
                                exp.afterClose();
                        });
-               }, t);          
+               }, t);
        }
 },
 crossfade : function (up, to, from) {
        if (!up) return;
-       var exp = this, 
+       var exp = this,
                last = this.last,
                x = this.x,
                y = this.y,
@@ -1651,10 +1668,10 @@ crossfade : function (up, to, from) {
                content = this.content,
                overlayBox = this.overlayBox;
        hs.removeEventListener(document, 'mousemove', hs.dragHandler);
-       
-       hs.setStyles(content, { 
-               width: (x.imgSize || x.size) +'px', 
-               height: (y.imgSize || y.size) +'px'             
+
+       hs.setStyles(content, {
+               width: (x.imgSize || x.size) +'px',
+               height: (y.imgSize || y.size) +'px'
        });
        if (overlayBox) overlayBox.style.overflow = 'visible';
        this.outline = last.outline;
@@ -1662,15 +1679,15 @@ crossfade : function (up, to, from) {
        last.outline = null;
        var fadeBox = hs.createElement('div', {
                        className: 'highslide-'+ this.contentType
-               }, { 
-                       position: 'absolute', 
+               }, {
+                       position: 'absolute',
                        zIndex: 4,
                        overflow: 'hidden',
                        display: 'none'
                }
        );
        var names = { oldImg: last, newImg: this };
-       for (var n in names) {  
+       for (var n in names) {
                this[n] = names[n].content.cloneNode(1);
                hs.setStyles(this[n], {
                        position: 'absolute',
@@ -1686,20 +1703,20 @@ crossfade : function (up, to, from) {
        }
        fadeBox.style.display = '';
        last.content.style.display = 'none';
-       
-       
+
+
        if (hs.safari && hs.uaVersion < 525) {
                this.wrapper.style.visibility = 'visible';
        }
        hs.animate(wrapper, {
                width: x.size
        }, {
-               duration: hs.transitionDuration, 
+               duration: hs.transitionDuration,
                step: function(val, args) {
                        var pos = args.pos,
                                invPos = 1 - pos;
                        var prop,
-                               size = {}, 
+                               size = {},
                                props = ['pos', 'size', 'p1', 'p2'];
                        for (var n in props) {
                                prop = props[n];
@@ -1712,10 +1729,10 @@ crossfade : function (up, to, from) {
                                        invPos * (lastY.imgSize || lastY.size) + pos * (y.imgSize || y.size));
                                size.yimgPad = Math.round(invPos * lastY.get('imgPad') + pos * y.get('imgPad'));
                        }
-                       if (exp.outline) exp.outline.setPosition({ 
-                               x: size.xpos, 
-                               y: size.ypos, 
-                               w: size.xsize + size.xp1 + size.xp2 + 2 * x.cb, 
+                       if (exp.outline) exp.outline.setPosition({
+                               x: size.xpos,
+                               y: size.ypos,
+                               w: size.xsize + size.xp1 + size.xp2 + 2 * x.cb,
                                h: size.ysize + size.yp1 + size.yp2 + 2 * y.cb
                        });
                        last.wrapper.style.clip = 'rect('
@@ -1723,7 +1740,7 @@ crossfade : function (up, to, from) {
                                + (size.xsize + size.xp1 + size.xp2 + size.xpos + 2 * lastX.cb - lastX.pos) +'px, '
                                + (size.ysize + size.yp1 + size.yp2 + size.ypos + 2 * lastY.cb - lastY.pos) +'px, '
                                + (size.xpos - lastX.pos)+'px)';
-                               
+
                        hs.setStyles(content, {
                                top: (size.yp1 + y.get('imgPad')) +'px',
                                left: (size.xp1 + x.get('imgPad')) +'px',
@@ -1743,12 +1760,12 @@ crossfade : function (up, to, from) {
                                top: (size.yp1 + size.yimgPad) +'px',
                                visibility: 'visible'
                        });
-                       
+
                        hs.setStyles(exp.oldImg, {
                                top: (lastY.pos - size.ypos + lastY.p1 - size.yp1 + lastY.get('imgPad') - size.yimgPad)+'px',
                                left: (lastX.pos - size.xpos + lastX.p1 - size.xp1 + lastX.get('imgPad') - size.ximgPad)+'px'
-                       });             
-                       
+                       });
+
                        hs.setStyles(exp.newImg, {
                                opacity: pos,
                                top: (y.pos - size.ypos + y.p1 - size.yp1 + y.get('imgPad') - size.yimgPad) +'px',
@@ -1769,7 +1786,7 @@ crossfade : function (up, to, from) {
                        last.afterClose();
                        exp.last = null;
                }
-               
+
        });
 },
 reuseOverlay : function(o, el) {
@@ -1788,30 +1805,31 @@ reuseOverlay : function(o, el) {
 
 
 afterExpand : function() {
-       this.isExpanded = true; 
+       this.isExpanded = true;
        this.focus();
        if (this.dimmingOpacity) hs.dim(this);
        if (hs.upcoming && hs.upcoming == this.a) hs.upcoming = null;
        this.prepareNextOutline();
        var p = hs.page, mX = hs.mouse.x + p.scrollLeft, mY = hs.mouse.y + p.scrollTop;
        this.mouseIsOver = this.x.pos < mX && mX < this.x.pos + this.x.get('wsize')
-               && this.y.pos < mY && mY < this.y.pos + this.y.get('wsize');    
+               && this.y.pos < mY && mY < this.y.pos + this.y.get('wsize');
        if (this.overlayBox) this.showOverlays();
-       
+       hs.fireEvent(this, 'onAfterExpand');
+
 },
 
 
 prepareNextOutline : function() {
        var key = this.key;
        var outlineType = this.outlineType;
-       new hs.Outline(outlineType, 
+       new hs.Outline(outlineType,
                function () { try { hs.expanders[key].preloadNext(); } catch (e) {} });
 },
 
 
 preloadNext : function() {
        var next = this.getAdjacentAnchor(1);
-       if (next && next.onclick.toString().match(/hs\.expand/)) 
+       if (next && next.onclick.toString().match(/hs\.expand/))
                var img = hs.createElement('img', { src: hs.getSrc(next) });
 },
 
@@ -1828,7 +1846,7 @@ getAdjacentAnchor : function(op) {
 getAnchorIndex : function() {
        var arr = hs.getAnchors().groups[this.slideshowGroup || 'none'];
        if (arr) for (var i = 0; i < arr.length; i++) {
-               if (arr[i] == this.a) return i; 
+               if (arr[i] == this.a) return i;
        }
        return null;
 },
@@ -1839,7 +1857,7 @@ getNumber : function() {
                var arr = hs.anchors.groups[this.slideshowGroup || 'none'];
                if (arr) {
                        var s = hs.lang.number.replace('%1', this.getAnchorIndex() + 1).replace('%2', arr.length);
-                       this[this.numberPosition].innerHTML = 
+                       this[this.numberPosition].innerHTML =
                                '<div class="highslide-number">'+ s +'</div>'+ this[this.numberPosition].innerHTML;
                }
        }
@@ -1848,16 +1866,16 @@ initSlideshow : function() {
        if (!this.last) {
                for (var i = 0; i < hs.slideshows.length; i++) {
                        var ss = hs.slideshows[i], sg = ss.slideshowGroup;
-                       if (typeof sg == 'undefined' || sg === null || sg === this.slideshowGroup) 
+                       if (typeof sg == 'undefined' || sg === null || sg === this.slideshowGroup)
                                this.slideshow = new hs.Slideshow(this.key, ss);
-               } 
+               }
        } else {
                this.slideshow = this.last.slideshow;
        }
        var ss = this.slideshow;
        if (!ss) return;
        var key = ss.expKey = this.key;
-       
+
        ss.checkFirstAndLast();
        ss.disable('full-expand');
        if (ss.controls) {
@@ -1882,6 +1900,7 @@ cancelLoading : function() {
        if (hs.upcoming == this.a) hs.upcoming = null;
        hs.undim(this.key);
        if (this.loading) hs.loading.style.left = '-9999px';
+       hs.fireEvent(this, 'onHideLoading');
 },
 
 writeCredits : function () {
@@ -1893,17 +1912,19 @@ writeCredits : function () {
                innerHTML: hs.lang.creditsText,
                title: hs.lang.creditsTitle
        });
-       this.createOverlay({ 
-               overlayId: this.credits, 
-               position: this.creditsPosition || 'top left', 
-               hsId: 'credits' 
+       this.createOverlay({
+               overlayId: this.credits,
+               position: this.creditsPosition || 'top left',
+               hsId: 'credits'
        });
 },
 
 getInline : function(types, addOverlay) {
        for (var i = 0; i < types.length; i++) {
                var type = types[i], s = null;
-               if (!this[type +'Id'] && this.thumbsUserSetId)  
+               if (type == 'caption' && !hs.fireEvent(this, 'onBeforeGetCaption')) return;
+               else if (type == 'heading' && !hs.fireEvent(this, 'onBeforeGetHeading')) return;
+               if (!this[type +'Id'] && this.thumbsUserSetId)
                        this[type +'Id'] = type +'-for-'+ this.thumbsUserSetId;
                if (this[type +'Id']) this[type] = hs.getNode(this[type +'Id']);
                if (!this[type] && !this[type +'Text'] && this[type +'Eval']) try {
@@ -1927,10 +1948,10 @@ getInline : function(types, addOverlay) {
                        }
                }
                if (!this[type] && !s && this.numberPosition == type) s = '\n';
-               
-               if (!this[type] && s) this[type] = hs.createElement('div', 
+
+               if (!this[type] && s) this[type] = hs.createElement('div',
                                { className: 'highslide-'+ type, innerHTML: s } );
-               
+
                if (addOverlay && this[type]) {
                        var o = { position: (type == 'heading') ? 'above' : 'below' };
                        for (var x in this[type+'Overlay']) o[x] = this[type+'Overlay'][x];
@@ -1964,10 +1985,10 @@ showHideElements : function (tagName, visibility) {
                                elPos.w = els[i].offsetWidth;
                                elPos.h = els[i].offsetHeight;
                                if (!this.dimmingOpacity) { // hide all if dimming
-                               
-                                       var clearsX = (elPos.x + elPos.w < this.x.get('opos') 
+
+                                       var clearsX = (elPos.x + elPos.w < this.x.get('opos')
                                                || elPos.x > this.x.get('opos') + this.x.get('osize'));
-                                       var clearsY = (elPos.y + elPos.h < this.y.get('opos') 
+                                       var clearsY = (elPos.y + elPos.h < this.y.get('opos')
                                                || elPos.y > this.y.get('opos') + this.y.get('osize'));
                                }
                                var wrapperKey = hs.getWrapperKey(els[i]);
@@ -1976,7 +1997,7 @@ showHideElements : function (tagName, visibility) {
                                                els[i].setAttribute('hidden-by', '['+ this.key +']');
                                                els[i].origProp = els[i].style[prop];
                                                els[i].style[prop] = 'hidden';
-                                               
+
                                        } else if (hiddenBy.indexOf('['+ this.key +']') == -1) {
                                                els[i].setAttribute('hidden-by', hiddenBy + '['+ this.key +']');
                                        }
@@ -1987,7 +2008,7 @@ showHideElements : function (tagName, visibility) {
                                } else if (hiddenBy && hiddenBy.indexOf('['+ this.key +']') > -1) {
                                        els[i].setAttribute('hidden-by', hiddenBy.replace('['+ this.key +']', ''));
                                }
-                                               
+
                        }
                }
        }
@@ -2002,23 +2023,25 @@ focus : function() {
                        blurExp.content.className += ' highslide-'+ blurExp.contentType +'-blur';
                                blurExp.content.style.cursor = hs.ieLt7 ? 'hand' : 'pointer';
                                blurExp.content.title = hs.lang.focusTitle;
+                       hs.fireEvent(blurExp, 'onBlur');
                }
        }
-       
+
        // focus this
-       if (this.outline) this.outline.table.style.zIndex 
+       if (this.outline) this.outline.table.style.zIndex
                = this.wrapper.style.zIndex - 1;
        this.content.className = 'highslide-'+ this.contentType;
                this.content.title = hs.lang.restoreTitle;
-               
+
                if (hs.restoreCursor) {
                        hs.styleRestoreCursor = window.opera ? 'pointer' : 'url('+ hs.graphicsDir + hs.restoreCursor +'), pointer';
                        if (hs.ieLt7 && hs.uaVersion < 6) hs.styleRestoreCursor = 'hand';
                        this.content.style.cursor = hs.styleRestoreCursor;
                }
-               
-       hs.focusKey = this.key; 
-       hs.addEventListener(document, window.opera ? 'keypress' : 'keydown', hs.keyHandler);    
+
+       hs.focusKey = this.key;
+       hs.addEventListener(document, window.opera ? 'keypress' : 'keydown', hs.keyHandler);
+       hs.fireEvent(this, 'onFocus');
 },
 moveTo: function(x, y) {
        this.x.setPos(x);
@@ -2047,11 +2070,12 @@ close : function() {
                hs.getExpander(hs.upcoming).cancelLoading();
                hs.upcoming = null;
        }
+       if (!hs.fireEvent(this, 'onBeforeClose')) return;
        this.isClosing = true;
        if (this.slideshow && !hs.upcoming) this.slideshow.pause();
-       
+
        hs.removeEventListener(document, window.opera ? 'keypress' : 'keydown', hs.keyHandler);
-       
+
        try {
                this.content.style.cursor = 'default';
                this.changeSize(
@@ -2074,13 +2098,14 @@ close : function() {
 },
 
 createOverlay : function (o) {
-       var el = o.overlayId, 
+       var el = o.overlayId,
                relToVP = (o.relativeTo == 'viewport' && !/panel$/.test(o.position));
        if (typeof el == 'string') el = hs.getNode(el);
        if (o.html) el = hs.createElement('div', { innerHTML: o.html });
        if (!el || typeof el == 'string') return;
+       if (!hs.fireEvent(this, 'onCreateOverlay', { overlay: el })) return;
        el.style.display = 'block';
-       o.hsId = o.hsId || o.overlayId; 
+       o.hsId = o.hsId || o.overlayId;
        if (this.transitions[1] == 'crossfade' && this.reuseOverlay(o, el)) return;
        this.genOverlayBox();
        var width = o.width && /^[0-9]+(px|%)$/.test(o.width) ? o.width : 'auto';
@@ -2100,7 +2125,7 @@ createOverlay : function (o) {
                true
        );
        if (relToVP) overlay.hsKey = this.key;
-       
+
        overlay.appendChild(el);
        hs.extend(overlay, {
                opacity: 1,
@@ -2109,11 +2134,11 @@ createOverlay : function (o) {
                dur: (o.fade === 0 || o.fade === false || (o.fade == 2 && hs.ie)) ? 0 : 250
        });
        hs.extend(overlay, o);
-       
-               
+
+
        if (this.gotOverlays) {
                this.positionOverlay(overlay);
-               if (!overlay.hideOnMouseOut || this.mouseIsOver) 
+               if (!overlay.hideOnMouseOut || this.mouseIsOver)
                        hs.animate(overlay, { opacity: overlay.opacity }, overlay.dur);
        }
        hs.push(this.overlays, hs.idCounter - 1);
@@ -2130,25 +2155,25 @@ positionOverlay : function(overlay) {
                        overlay.style.width = '100%';
        } else
        if (overlay.parentNode != this.overlayBox) this.overlayBox.appendChild(overlay);
-       if (/left$/.test(p)) overlay.style.left = offX +'px'; 
-       
-       if (/center$/.test(p))  hs.setStyles (overlay, { 
+       if (/left$/.test(p)) overlay.style.left = offX +'px';
+
+       if (/center$/.test(p))  hs.setStyles (overlay, {
                left: '50%',
                marginLeft: (offX - Math.round(overlay.offsetWidth / 2)) +'px'
-       });     
-       
+       });
+
        if (/right$/.test(p)) overlay.style.right = - offX +'px';
-               
-       if (/^leftpanel$/.test(p)) { 
+
+       if (/^leftpanel$/.test(p)) {
                hs.setStyles(overlay, {
                        right: '100%',
                        marginRight: this.x.cb +'px',
                        top: - this.y.cb +'px',
                        bottom: - this.y.cb +'px',
                        overflow: 'auto'
-               });              
+               });
                this.x.p1 = overlay.offsetWidth;
-       
+
        } else if (/^rightpanel$/.test(p)) {
                hs.setStyles(overlay, {
                        left: '100%',
@@ -2164,11 +2189,11 @@ positionOverlay : function(overlay) {
        if (relToVP && overlay.offsetHeight > parOff)
                overlay.style.height = hs.ieLt7 ? parOff +'px' : '100%';
 
-       if (/^top/.test(p)) overlay.style.top = offY +'px'; 
-       if (/^middle/.test(p))  hs.setStyles (overlay, { 
-               top: '50%', 
+       if (/^top/.test(p)) overlay.style.top = offY +'px';
+       if (/^middle/.test(p))  hs.setStyles (overlay, {
+               top: '50%',
                marginTop: (offY - Math.round(overlay.offsetHeight / 2)) +'px'
-       });     
+       });
        if (/^bottom/.test(p)) overlay.style.bottom = - offY +'px';
        if (/^above$/.test(p)) {
                hs.setStyles(overlay, {
@@ -2179,7 +2204,7 @@ positionOverlay : function(overlay) {
                        width: 'auto'
                });
                this.y.p1 = overlay.offsetHeight;
-       
+
        } else if (/^below$/.test(p)) {
                hs.setStyles(overlay, {
                        position: 'relative',
@@ -2194,9 +2219,11 @@ positionOverlay : function(overlay) {
        }
 },
 
-getOverlays : function() {     
+getOverlays : function() {
        this.getInline(['heading', 'caption'], true);
        this.getNumber();
+       if (this.caption) hs.fireEvent(this, 'onAfterGetCaption');
+       if (this.heading) hs.fireEvent(this, 'onAfterGetHeading');
        if (this.heading && this.dragByHeading) this.heading.className += ' highslide-move';
        if (hs.showCredits) this.writeCredits();
        for (var i = 0; i < hs.overlays.length; i++) {
@@ -2221,7 +2248,7 @@ genOverlayBox : function() {
                        className: this.wrapperClassName
                }, {
                        position : 'absolute',
-                       width: (this.x.size || (this.useBox ? this.width : null) 
+                       width: (this.x.size || (this.useBox ? this.width : null)
                                || this.x.full) +'px',
                        height: (this.y.size || this.y.full) +'px',
                        visibility : 'hidden',
@@ -2233,11 +2260,11 @@ genOverlayBox : function() {
        );
 },
 sizeOverlayBox : function(doWrapper, doPanels) {
-       var overlayBox = this.overlayBox, 
+       var overlayBox = this.overlayBox,
                x = this.x,
                y = this.y;
        hs.setStyles( overlayBox, {
-               width: x.size +'px', 
+               width: x.size +'px',
                height: y.size +'px'
        });
        if (doWrapper || doPanels) {
@@ -2314,33 +2341,35 @@ createFullExpand : function () {
                        className: 'highslide-full-expand'
                }
        );
-       
-       this.createOverlay({ 
-               overlayId: this.fullExpandLabel, 
-               position: hs.fullExpandPosition, 
-               hideOnMouseOut: true, 
+       if (!hs.fireEvent(this, 'onCreateFullExpand')) return;
+
+       this.createOverlay({
+               overlayId: this.fullExpandLabel,
+               position: hs.fullExpandPosition,
+               hideOnMouseOut: true,
                opacity: hs.fullExpandOpacity
        });
 },
 
 doFullExpand : function () {
        try {
+               if (!hs.fireEvent(this, 'onDoFullExpand')) return;
                if (this.fullExpandLabel) hs.discardElement(this.fullExpandLabel);
-               
+
                this.focus();
                var xSize = this.x.size,
-               ySize = this.y.size;
-        this.resizeTo(this.x.full, this.y.full);
-       
-        var xpos = this.x.pos - (this.x.size - xSize) / 2;
-        if (xpos < hs.marginLeft) xpos = hs.marginLeft;
-       
-        var ypos = this.y.pos - (this.y.size - ySize) / 2;
-        if (ypos < hs.marginTop) ypos = hs.marginTop;
-       
-        this.moveTo(xpos, ypos);
+                       ySize = this.y.size;
+               this.resizeTo(this.x.full, this.y.full);
+
+               var xpos = this.x.pos - (this.x.size - xSize) / 2;
+               if (xpos < hs.marginLeft) xpos = hs.marginLeft;
+
+               var ypos = this.y.pos - (this.y.size - ySize) / 2;
+               if (ypos < hs.marginTop) ypos = hs.marginTop;
+
+               this.moveTo(xpos, ypos);
                this.doShowHide('hidden');
-       
+
        } catch (e) {
                this.error(e);
        }
@@ -2349,16 +2378,17 @@ doFullExpand : function () {
 
 afterClose : function () {
        this.a.className = this.a.className.replace('highslide-active-anchor', '');
-       
+
        this.doShowHide('visible');
                if (this.outline && this.outlineWhileAnimating) this.outline.destroy();
-       
+
                hs.discardElement(this.wrapper);
        this.destroyOverlays();
        if (!hs.viewport.childNodes.length) hs.viewport.style.display = 'none';
-       
+
        if (this.dimmingOpacity) hs.undim(this.key);
-       hs.expanders[this.key] = null;          
+       hs.fireEvent(this, 'onAfterClose');
+       hs.expanders[this.key] = null;
        hs.reOrder();
 }
 
@@ -2374,9 +2404,9 @@ hs.Slideshow = function (expKey, options) {
 };
 hs.Slideshow.prototype = {
 getControls: function() {
-       this.controls = hs.createElement('div', { innerHTML: hs.replaceLang(hs.skin.controls) }, 
+       this.controls = hs.createElement('div', { innerHTML: hs.replaceLang(hs.skin.controls) },
                null, hs.container);
-       
+
        var buttons = ['play', 'pause', 'previous', 'next', 'move', 'full-expand', 'close'];
        this.btn = {};
        var pThis = this;
@@ -2390,9 +2420,9 @@ getControls: function() {
 checkFirstAndLast: function() {
        if (this.repeat || !this.controls) return;
        var exp = hs.expanders[this.expKey],
-               cur = exp.getAnchorIndex(), 
+               cur = exp.getAnchorIndex(),
                re = /disabled$/;
-       if (cur == 0) 
+       if (cur == 0)
                this.disable('previous');
        else if (re.test(this.btn.previous.getElementsByTagName('a')[0].className))
                this.enable('previous');
@@ -2428,8 +2458,8 @@ play: function(wait) {
                this.btn.play.style.display = 'none';
                this.btn.pause.style.display = '';
        }
-       
-       this.autoplay = true;   
+
+       this.autoplay = true;
        if (!wait) hs.next(this.expKey);
 },
 pause: function() {
@@ -2437,7 +2467,7 @@ pause: function() {
                this.btn.pause.style.display = 'none';
                this.btn.play.style.display = '';
        }
-       
+
        clearTimeout(this.autoplay);
        this.autoplay = null;
 },
@@ -2468,11 +2498,11 @@ hs.Thumbstrip = function(slideshow) {
                exp.createOverlay(options);
                hs.setStyles(dom.parentNode, { overflow: 'hidden' });
        };
-       
-       function scroll (delta) {       
+
+       function scroll (delta) {
                selectThumb(undefined, Math.round(delta * dom[isX ? 'offsetWidth' : 'offsetHeight'] * 0.7));
        };
-       
+
        function selectThumb (i, scrollBy) {
                if (i === undefined) for (var j = 0; j < group.length; j++) {
                        if (group[j] == hs.expanders[slideshow.expKey].a) {
@@ -2496,17 +2526,17 @@ hs.Thumbstrip = function(slideshow) {
                        mgnRight = 20;
                if (scrollBy !== undefined) {
                        tblPos = curTblPos - scrollBy;
-                       
+
                        if (minTblPos > 0) minTblPos = 0;
                        if (tblPos > 0) tblPos = 0;
                        if (tblPos < minTblPos) tblPos = minTblPos;
-                       
-       
+
+
                } else {
                        for (var j = 0; j < as.length; j++) as[j].className = '';
                        active.className = 'highslide-active-anchor';
                        var activeLeft = i > 0 ? as[i - 1].parentNode[offsetLeft] : cell[offsetLeft],
-                               activeRight = cell[offsetLeft] + cell[offsetWidth] + 
+                               activeRight = cell[offsetLeft] + cell[offsetWidth] +
                                        (as[i + 1] ? as[i + 1].parentNode[offsetWidth] : 0);
                        if (activeRight > overlayWidth - curTblPos) tblPos = overlayWidth - activeRight;
                        else if (activeLeft < -curTblPos) tblPos = -activeLeft;
@@ -2516,9 +2546,9 @@ hs.Thumbstrip = function(slideshow) {
                hs.animate(marker, isX ? { left: markerPos } : { top: markerPos }, null, 'easeOutQuad');
                scrollUp.style.display = tblPos < 0 ? 'block' : 'none';
                scrollDown.style.display = (tblPos > minTblPos)  ? 'block' : 'none';
-               
+
        };
-       
+
 
        // initialize
        var group = hs.anchors.groups[hs.expanders[slideshow.expKey].slideshowGroup || 'none'],
@@ -2567,22 +2597,22 @@ hs.Thumbstrip = function(slideshow) {
        if (!floatMode) {
                scrollUp.onclick = function () { scroll(-1); };
                scrollDown.onclick = function() { scroll(1); };
-               hs.addEventListener(tbody, document.onmousewheel !== undefined ? 
-                               'mousewheel' : 'DOMMouseScroll', function(e) {        
+               hs.addEventListener(tbody, document.onmousewheel !== undefined ?
+                               'mousewheel' : 'DOMMouseScroll', function(e) {
                        var delta = 0;
-               e = e || window.event;
-               if (e.wheelDelta) {
+                       e = e || window.event;
+                       if (e.wheelDelta) {
                                delta = e.wheelDelta/120;
                                if (hs.opera) delta = -delta;
-               } else if (e.detail) {
+                       } else if (e.detail) {
                                delta = -e.detail/3;
-               }
-               if (delta) scroll(-delta * 0.2);
+                       }
+                       if (delta) scroll(-delta * 0.2);
                        if (e.preventDefault) e.preventDefault();
                        e.returnValue = false;
                });
        }
-       
+
        return {
                add: add,
                selectThumb: selectThumb
@@ -2608,11 +2638,11 @@ hs.addEventListener(window, 'load', hs.ready);
 // set handlers
 hs.addEventListener(document, 'ready', function() {
        if (hs.expandCursor || hs.dimmingOpacity) {
-               var style = hs.createElement('style', { type: 'text/css' }, null, 
-                       document.getElementsByTagName('HEAD')[0]), 
+               var style = hs.createElement('style', { type: 'text/css' }, null,
+                       document.getElementsByTagName('HEAD')[0]),
                        backCompat = document.compatMode == 'BackCompat';
-                       
-               
+
+
                function addRule(sel, dec) {
                        if (hs.ie && (hs.uaVersion < 9 || backCompat)) {
                                var last = document.styleSheets[document.styleSheets.length - 1];
@@ -2625,7 +2655,7 @@ hs.addEventListener(document, 'ready', function() {
                        return 'expression( ( ( ignoreMe = document.documentElement.'+ prop +
                                ' ? document.documentElement.'+ prop +' : document.body.'+ prop +' ) ) + \'px\' );';
                }
-               if (hs.expandCursor) addRule ('.highslide img', 
+               if (hs.expandCursor) addRule ('.highslide img',
                        'cursor: url('+ hs.graphicsDir + hs.expandCursor +'), pointer !important;');
                addRule ('.highslide-viewport-size',
                        hs.ie && (hs.uaVersion < 7 || backCompat) ?