JavaScript 点击图片放大功能

2022-09-13 14:23:14

<!doctype html>

<html>

<head>

<title>点击图片放大</title>

a img{border:0px;}

.latentzoom {
CURSOR: pointer; outline: none
}
.latentzoom-image {
BORDER-RIGHT: white 2px solid; BORDER-TOP: white 2px solid; BORDER-LEFT: white 2px solid; BORDER-BOTTOM: white 2px solid
}
.latentzoom-image-blur {

}
.latentzoom-caption {
BORDER-RIGHT: white 2px solid; PADDING-RIGHT: 5px; BORDER-TOP: white 2px; DISPLAY: none; PADDING-LEFT: 5px; FONT-SIZE: 10pt; PADDING-BOTTOM: 5px; BORDER-LEFT: white 2px solid; COLOR: #666666; PADDING-TOP: 5px; BORDER-BOTTOM: white 2px solid; BACKGROUND-COLOR: white; TEXT-ALIGN: left
}
.latentzoom-display-block {
DISPLAY: block
}
.latentzoom-display-none {
DISPLAY: none
}
.latentzoom-loading {
PADDING-RIGHT: 3px; BACKGROUND-POSITION: 3px 1px; BORDER-TOP: white 1px solid; DISPLAY: block; PADDING-LEFT: 22px; FONT-WEIGHT: bold; FONT-SIZE: 9px; BACKGROUND-IMAGE: PADDING-BOTTOM: 3px; TEXT-TRANSFORM: uppercase; COLOR: white; PADDING-TOP: 3px; BORDER-BOTTOM: white 1px solid; BACKGROUND-REPEAT: no-repeat; BACKGROUND-COLOR: black; TEXT-DECORATION: none
}
.latentzoom-move {
CURSOR: move;
}
.control {float: right; display: block;/*position: relative;*/ margin: 0 5px; font-weight: bold; text-decoration: none; color: #999;}

</style>

// Apply your own settings here, or override them in the html file.
graphicsDir : 'latentzoom/',
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出现所需时间
restoreSteps : 10,
restoreDuration : 300,
allowMultipleInstances: true,
hideThumbOnExpand : true,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
outlineWhileAnimating : false, // not recommended for image popups, animation gets jerky on slow systems.
outlineStartOffset : 3, // ends at 10
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
fullExpandTitle : 'Expand to actual size',
restoreTitle : '单击关闭(ESC/Enter)/拖动/方向键切换.',
focusTitle : 'Click to bring to front',
loadingText : 'LOADING...',
loadingTitle : '取消加载',
loadingOpacity : 0.5,

// 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)
targetX: null, // the id of a target element
targetY: null,
captionId : null,
captionTemplateId : null,
slideshowGroup : null, // defines groups for next/previous links and keystrokes
spaceForCaption : 30, // 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 : 'null', // set null to disable outlines
wrapperClassName : null, // for enhanced css-control
enableKeyListener : true,

// END OF YOUR SETTINGS

// declare internal properties
preloadTheseImages : new Array(),
continuePreloading: true,
expandedImagesCounter : 0,
expanders : new Array(),
overrides : new Array(
'anchor',
'align',
'targetX',
'targetY',
'outlineType',
'outlineWhileAnimating',
'spaceForCaption',
'wrapperClassName',
'minWidth',
'minHeight',
'captionId',
'captionTemplateId',
'allowSizeReduction',
'slideshowGroup',
'enableKeyListener'
),
overlays : new Array(),
pendingOutlines : new Array(),
origNodes : new Array(),
ie : (document.all && !window.opera),
safari : navigator.userAgent.indexOf("Safari") != -1,
hasFocused : false,

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

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

createElement : function (tag, attribs, styles, parent) {
var el = document.createElement(tag);
if (attribs) ls.setAttribs(el, attribs);
if (styles) ls.setStyles(el, styles);
if (parent) parent.appendChild(el);
return el;
},

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

setStyles : function (el, styles) {
for (var x in styles) {
try { el.style[x] = styles[x]; }
catch (e) {}
}
},

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

clientInfo : function () {
var iebody = document.compatMode && document.compatMode != "BackCompat"
? document.documentElement : document.body;

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

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

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

} catch (e) {
return true;
}

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

topmostKey = i;
}
}
}
if (topmostKey == -1) ls.focusKey = -1;
else ls.expanders[topmostKey].focus();
},

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

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

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

getAdjacentAnchor : function(key, op) {
var aAr = document.getElementsByTagName('A');
var lsAr = new Array;
var activeI = -1;
var j = 0;
for (i = 0; i < aAr.length; i++) {
if (ls.isLsAnchor(aAr[i]) && ((ls.expanders[key].slideshowGroup == ls.getParam(aAr[i], 'slideshowGroup')))) {
lsAr[j] = aAr[i];
if (ls.expanders[key] && aAr[i] == ls.expanders[key].a) {
activeI = j;
}
j++;
}
}
return lsAr[activeI + op];
},

getParam : function (a, param) {
try {
var s = a.onclick.toString();
var oneLine = s.replace(/\s/g, ' ');
var sParams = oneLine.replace(/.*?ls.(htmlE|e)xpand\s*?\(\s*?this\s*?,\s*?\{(.*?)\}.*?$/, '$2');
if (ls.safari) { // stupid bug
for (var i = 0; i < ls.overrides.length; i++) {
sParams = sParams.replace(ls.overrides[i] +':', ','+ ls.overrides[i] +':').replace(/^\s*?,/, '');
}
}
if (oneLine == sParams) return null;
eval('var arr = {'+ sParams +'};');
for (var x in arr) {
if (x == param) return arr[x];
}
} catch (e) {
return null;
}
},

getSrc : function (a) {
var src = ls.getParam(a, 'src');
if (src) return src;
return a.rel.replace(/_slash_/g, '/') || a.href;
},

cloneNode : function (id) {
if (!ls.$$$(id) && !ls.origNodes[id]) return null;
var clone;
if (ls.origNodes[id]) {
clone = ls.origNodes[id].cloneNode(1);
ls.setId(clone, /-lsOrig$/, 1);
} else {
clone = ls.$$$(id).cloneNode(1);
ls.origNodes[id] = ls.$$$(id);
ls.setId(ls.$$$(id), '-lsOrig');
}
return clone;
},

setId : function (d, suff, remove) {
if (d.id) d.id = remove ? d.id.replace(suff, '') : d.id + suff;
if (d.name) d.name = remove ? d.name.replace(suff, '') : d.name + suff;
if (ls.geckoBug && ls.geckoBug(d)) return;
var a = d.childNodes;
for (var i = 0; i < a.length; i++) {
if (a[i]) ls.setId(a[i], suff, remove);
}
},

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

previousOrNext : function (el, op) {
if (typeof el == 'object') var activeKey = ls.getWrapperKey(el);
else if (typeof el == 'number') var activeKey = el;
if (ls.expanders[activeKey]) {
//ls.toggleImagesExpandEl = ls.getAdjacentAnchor(activeKey, op);
try { ls.getAdjacentAnchor(activeKey, op).onclick(); } catch (e) {}
ls.expanders[activeKey].doClose();
}

return false;
},

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

next : function (el) {
return ls.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 (ls.expanders[ls.focusKey]) ls.expanders[ls.focusKey].doClose();
return false;
}
if (op != null) {
ls.removeEventListener(document, 'keydown', ls.keyHandler);
if (ls.expanders[ls.focusKey] && !ls.expanders[ls.focusKey].enableKeyListener) return true;
return ls.previousOrNext(ls.focusKey, op);
}
else return true;
},

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

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

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

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

var fobj = e.target;
while (fobj.parentNode
&& !(fobj.className && fobj.className.match(/latentzoom-(image|move|html)/)))
{
fobj = fobj.parentNode;
}

if (!fobj.parentNode) return;

ls.dragKey = ls.getWrapperKey(fobj);
if (fobj.className.match(/latentzoom-(image|move)/)) {
var isDraggable = true;
var wLeft = parseInt(ls.expanders[ls.dragKey].wrapper.style.left);
var wTop = parseInt(ls.expanders[ls.dragKey].wrapper.style.top);
}

if (e.type == 'mousedown') {
if (isDraggable) // drag or focus
{
ls.dragObj = ls.expanders[ls.dragKey].content;

if (fobj.className.match('latentzoom-image')) ls.dragObj.style.cursor = 'move';

ls.wLeft = wLeft;
ls.wTop = wTop;

ls.dragX = e.clientX;
ls.dragY = e.clientY;
ls.addEventListener(document, 'mousemove', ls.mouseMoveHandler);
if (e.preventDefault) e.preventDefault(); // FF

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

} else if (e.type == 'mouseup') {
ls.removeEventListener(document, 'mousemove', ls.mouseMoveHandler);
if (isDraggable && ls.expanders[ls.dragKey]) {
if (fobj.className.match('latentzoom-image')) {
fobj.style.cursor = ls.styleRestoreCursor;
}
var hasMoved = wLeft != ls.wLeft || wTop != ls.wTop;
if (!hasMoved && !ls.hasFocused && !fobj.className.match(/latentzoom-move/)) {
ls.expanders[ls.dragKey].doClose();
} else if (hasMoved || (!hasMoved && ls.hasHtmlExpanders)) {
ls.expanders[ls.dragKey].redoShowHide();
}
ls.hasFocused = false;

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

mouseMoveHandler : function(e)
{
if (!ls.expanders[ls.dragKey] || !ls.expanders[ls.dragKey].wrapper) return;
if (!e) e = window.event;

var exp = ls.expanders[ls.dragKey];
var w = exp.wrapper;
w.style.left = ls.wLeft + e.clientX - ls.dragX +'px';
w.style.top = ls.wTop + e.clientY - ls.dragY +'px';

if (exp.objOutline) {
var o = exp.objOutline;
o.outer.style.left = (parseInt(w.style.left) - o.offset) +'px';
o.outer.style.top = (parseInt(w.style.top) - o.offset) +'px';
}

return false;
},

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

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

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

preloadImages : function (number) {
if (number && typeof number != 'object') ls.numberOfImagesToPreload = number;
var re, j = 0;

// preload outlines
new LsOutline(ls.outlineType, function () { ls.preloadFullImage(0)} );

// preload cursor
var cur = document.createElement('img');
cur.src = ls.restoreCursor;
},

genContainer : function () {
if (!ls.container) {
ls.container = ls.createElement('div',
null,
{ position: 'absolute', left: 0, top: 0, width: '100%', zIndex: ls.zIndexCounter },
document.body
);
}
}
}; // end ls object

//-----------------------------------------------------------------------------
LsOutline = function (outlineType, onLoad) {
if (!outlineType) return;
if (onLoad) this.onLoad = onLoad;
this.outlineType = outlineType;
this.outline = new Array();
var v = ls.ieVersion();

ls.genContainer();

this.hasAlphaImageLoader = ls.ie && v >= 5.5 && v < 8;
this.hasPngSupport = !ls.ie || (ls.ie && v >= 8);
this.hasOutline = this.outlineType && (this.hasAlphaImageLoader || this.hasPngSupport);

this.outer = ls.createElement(
'table',
{
cellSpacing: 0 // saf
},
{
visibility: 'hidden',
position: 'absolute',
zIndex: ls.zIndexCounter++,
borderCollapse: 'collapse'
},
ls.container
);
this.tbody = ls.createElement('tbody', null, null, this.outer);

this.preloadOutlineElement(1); // recursive
};

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

this.offset = this.hasOutline ? 10 : 0;
if (i == 1 || i == 4 || i == 6) this.tr = ls.createElement('tr', null, null, this.tbody);
if (i == 5) this.inner = ls.createElement('td', null, { padding: 0, margin: 0, border: 0, position: 'relative' }, this.tr);

var files = Array (0,8,1,2,7,3,6,5,4);
var src = files[i] +".png";

if (this.hasAlphaImageLoader) {
var bgKey = 'filter';
var bgValue = "progid:DXImageTransform.Microsoft.AlphaImageLoader("
+ "enabled=true, sizingMethod=scale src='"+ src + "') ";
} else if (this.hasPngSupport || this.hasIe7Bug) {
var bgKey = 'background';
var bgValue = 'url('+ src +')';
}
var styles = { lineHeight: 0, fontSize: 0, padding: 0, margin: 0, border: 0 };
if (this.hasOutline) styles[bgKey] = bgValue;

var td = ls.createElement('td', null, styles);

var img = ls.createElement('img', null, { visibility: 'hidden', display: 'block', padding: 0, margin: 0, border: 0 }, td); // for onload trigger

var dim = 2 * this.offset;
ls.setStyles (td, { height: dim +'px', width: dim +'px'} );

var pThis = this;
if (i < 8) img.onload = function() { pThis.preloadOutlineElement(i + 1); };
else img.onload = function() {
ls.pendingOutlines[pThis.outlineType] = pThis;
if (pThis.onLoad) pThis.onLoad();
};

this.tr.appendChild(td);
//if (this.hasOutline) img.src = src;
// img.onload();
img.onload();
};

LsOutline.prototype.destroy = function() {
ls.purge(this.outer);
try { this.outer.parentNode.removeChild(this.outer); } catch (e) {}
};

//-----------------------------------------------------------------------------
// The expander object
LsExpander = function(a, params, contentType) {
ls.continuePreloading = false;

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

if (params && params.thumbnailId) {
var el = ls.$$$(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
for (i = 0; i < ls.expanders.length; i++) {
if (ls.expanders[i] && ls.expanders[i].thumb != el && !ls.expanders[i].onLoadStarted) {
ls.expanders[i].cancelLoading();
}
}
// check if already open
for (i = 0; i < ls.expanders.length; i++) {
if (ls.expanders[i] && ls.expanders[i].thumb == el) {
ls.expanders[i].focus();
return false;
}
}

if (!ls.allowMultipleInstances) {
var prev = ls.expandedImagesCounter - 1;
if (ls.expanders[prev]) ls.expanders[prev].doClose();
}

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

this.a = a;

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

this.overlays = new Array();

var pos = ls.position(el);

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

// store properties of thumbnail
this.thumbWidth = el.width ? el.width : el.offsetWidth;
this.thumbHeight = el.height ? el.height : el.offsetHeight;
this.thumbLeft = pos.x;
this.thumbTop = pos.y;
this.thumbClass = el.className;

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

// get the wrapper
ls.genContainer();
if (ls.pendingOutlines[this.outlineType]) {
this.connectOutline();
this[this.contentType +'Create']();
} else if (!this.outlineType) {
this[this.contentType +'Create']();
} else {
this.displayLoading();
var pThis = this;
new LsOutline(this.outlineType,
function () {
pThis.connectOutline();
pThis[pThis.contentType +'Create']();
}
);
}

};

LsExpander.prototype.connectOutline = function(x, y) {
var w = ls.pendingOutlines[this.outlineType];
this.objOutline = w;
ls.pendingOutlines[this.outlineType] = null;
};

LsExpander.prototype.displayLoading = function() {
if (this.onLoadStarted || this.loading) return;

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

if (!ls.loading) {
ls.loading = ls.createElement('a',
{
className: 'latentzoom-loading',
title: ls.loadingTitle,
innerHTML: ls.loadingText
},
{
position: 'absolute'
}, ls.container
);
if (ls.ie) ls.loading.style.filter = 'alpha(opacity='+ (100*ls.loadingOpacity) +')';
else ls.loading.style.opacity = ls.loadingOpacity;
}

this.loading = ls.loading;
this.loading.href = 'javascript:ls.expanders['+ this.key +'].cancelLoading()';
this.loading.visibility = 'visible';

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 (ls.expanders["+ this.key +"] && ls.expanders["+ this.key +"].loading) "
+ "ls.expanders["+ this.key +"].loading.style.visibility = 'visible';",
100
);
};

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

this.displayLoading();
};

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

if (!this.content) return;
if (this.onLoadStarted) return; // old Gecko loop
else this.onLoadStarted = true;

if (this.loading) {
this.loading.style.visibility = 'hidden';
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;

} else if (this.htmlGetSize) this.htmlGetSize();

// identify caption div
var modMarginBottom = ls.marginBottom;
if (!this.captionId && this.thumbsUserSetId) this.captionId = 'caption-for-'+ this.thumbsUserSetId;
if (this.captionId) {
this.caption = ls.cloneNode(this.captionId);
}
if (this.captionTemplateId) {
var s = (this.caption) ? this.caption.innerHTML : '';
this.caption = ls.cloneNode(this.captionTemplateId);
if (this.caption) this.caption.innerHTML
= this.caption.innerHTML.replace(/\s/g, ' ').replace('{caption}', s);
}

var modMarginBottom = ls.marginBottom;
if (this.caption) modMarginBottom += this.spaceForCaption;

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';
ls.container.appendChild(this.wrapper);

// correct for borders
this.offsetBorderW = (this.content.offsetWidth - this.thumbWidth) / 2;
this.offsetBorderH = (this.content.offsetHeight - this.thumbHeight) / 2;
var modMarginRight = ls.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;

client = new ls.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,
target: this.targetX,
marginMin: ls.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,
target: this.targetY,
marginMin: ls.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();
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};
ls.hideSelects = (ls.ie && ls.ieVersion() < 7);
if (ls.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
// Iframes bug
ls.hideIframes = (window.opera || navigator.vendor == 'KDE' || (ls.ie && ls.ieVersion() < 5.5));
if (ls.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);

// Make outline ready
if (this.objOutline && !this.outlineWhileAnimating) this.positionOutline(x.min, y.min, x.span, y.span);
var o2 = this.objOutline ? this.objOutline.offset : 0;

// Apply size change
this.changeSize(
1,
this.thumbLeft + this.thumbOffsetBorderW - this.offsetBorderW,
this.thumbTop + this.thumbOffsetBorderH - this.offsetBorderH,
this.thumbWidth,
this.thumbHeight,
x.min,
y.min,
x.span,
y.span,
ls.expandDuration,
ls.expandSteps,
ls.outlineStartOffset,
o2
);

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

LsExpander.prototype.justify = function (p) {

var tgt, dim = p == this.x ? 'x' : 'y';
if (p.target && p.target.match(/ /)) {
tgt = p.target.split(' ');
p.target = tgt[0];
}
if (p.target && ls.$$$(p.target)) {
p.min = ls.position(ls.$$$(p.target))[dim];
if (tgt && tgt[1] && tgt[1].match(/^[-]?[0-9]+px$/)) p.min += parseInt(tgt[1]);

} else 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;
};

LsExpander.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);
}
};

LsExpander.prototype.changeSize = function(dir, x1, y1, w1, h1, x2, y2, w2, h2, dur, steps, oo1, oo2) {
dW = (w2 - w1) / steps;
dH = (h2 - h1) / steps;
dX = (x2 - x1) / steps;
dY = (y2 - y1) / steps;
dOo = (oo2 - oo1) /steps;
for (i = 1; i <= steps; i++) {
w1 += dW;
h1 += dH;
x1 += dX;
y1 += dY;
oo1 += dOo;

LsExpander.prototype.imageSetSize = function (w, h, x, y, offset, end) {
try {
this.content.width = w;
this.content.height = h;

if (this.objOutline && this.outlineWhileAnimating) {
var o = this.objOutline.offset - offset;
this.positionOutline(x + o, y + o, w - 2 * o, h - 2 * o, 1);
}

ls.setStyles ( this.wrapper,
{
'visibility': 'visible',
'left': x +'px',
'top': y +'px'
}
);
var exp = 'ls.expanders['+ this.key +']';
if (end == 1) setTimeout('if ('+ exp +')'+ exp +'.onExpanded()', 0); // jerk in IE
else if (end == -1) setTimeout('if ('+ exp +')'+ exp +'.onEndClose()', 0);
} catch (e) {
window.location.href = ls.getSrc(this.a);
}
};

LsExpander.prototype.positionOutline = function(x, y, w, h, vis) {
if (!this.objOutline) return;
var o = this.objOutline;
if (vis) o.outer.style.visibility = 'visible';
o.outer.style.left = (x - o.offset) +'px';
o.outer.style.top = (y - o.offset) +'px';
o.outer.style.width = (w + 2 * (this.offsetBorderW + o.offset)) +'px';
w += 2 * (this.offsetBorderW - o.offset);
h += + 2 * (this.offsetBorderH - o.offset);
o.inner.style.width = w >= 0 ? w +'px' : 0;
o.inner.style.height = h >= 0 ? h +'px' : 0;
};

LsExpander.prototype.onExpanded = function() {
if (this.objOutline) this.objOutline.outer.style.visibility = 'visible';
this.isExpanded = true;
this.focus();
if (this.isHtml && this.objectLoadTime == 'after') this.writeExtendedContent();
this.createCustomOverlays();

if (this.caption) this.writeCaption();

if (this.fullExpandWidth > this.x.span) this.createFullExpand();
if (!this.caption) this.onDisplayFinished();
};

LsExpander.prototype.onDisplayFinished = function() {
var key = this.key;
var outlineType = this.outlineType;
new LsOutline(outlineType, function () { if (ls.expanders[key]) ls.expanders[key].preloadNext(); });
};

LsExpander.prototype.preloadNext = function() {
var nextA = ls.getAdjacentAnchor(this.key, 1);
if (nextA) {
var img = document.createElement('img');
img.src = ls.getSrc(nextA);
}
};

LsExpander.prototype.cancelLoading = function() {
this.a.style.cursor = this.originalCursor;
if (this.loading) ls.loading.style.visibility = 'hidden';
ls.expanders[this.key] = null;
};

LsExpander.prototype.writeCaption = function() {
try {
this.wrapper.style.width = this.wrapper.offsetWidth +'px';
this.caption.style.visibility = 'hidden';
this.caption.style.position = 'relative';
if (ls.ie) this.caption.style.zoom = 1;
this.caption.className += ' latentzoom-display-block';

var capHeight = this.caption.offsetHeight;
var slideHeight = (capHeight < this.content.height) ? capHeight : this.content.height;
this.caption.style.top = '-'+ 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 (ls.captionSlideSpeed) step = step * ls.captionSlideSpeed;
else step = slideHeight;

var t = 0;
for (var top = -slideHeight; top <= 0; top += step, t += 10) {
var end = (top >= 0) ? 1 : 0;
var eval = "if (ls.expanders["+ this.key +"]) { "
+ "ls.expanders["+ this.key +"].placeCaption("+ top +", "+ end +");"
+ "}";
setTimeout (eval, t);
}

} catch (e) {}
};

LsExpander.prototype.placeCaption = function(top, end) {
if (!this.caption) return;
this.caption.style.top = top +'px';
this.caption.style.visibility = 'visible';
if (this.objOutline) this.objOutline.inner.style.height
= (this.wrapper.offsetHeight + top - 2 * this.objOutline.offset) +'px';
if (end) this.onDisplayFinished();
};

LsExpander.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 = ls.position(els[i]);
elPos.w = els[i].offsetWidth;
elPos.h = els[i].offsetHeight;

LsExpander.prototype.focus = function() {
// blur others
for (i = 0; i < ls.expanders.length; i++) {
if (ls.expanders[i] && i == ls.focusKey) {
var blurExp = ls.expanders[i];
blurExp.content.className += ' latentzoom-'+ blurExp.contentType +'-blur';
if (blurExp.caption) {
ls.setId(blurExp.caption, '-lsBlur'+i);
blurExp.caption.className += ' latentzoom-caption-blur';
}
if (blurExp.isImage) {
blurExp.content.style.cursor = ls.ie ? 'hand' : 'pointer';
blurExp.content.title = ls.focusTitle;
} else { ls.setId(blurExp.innerContent, '-lsBlur'+i); }
}
}

// focus this
this.wrapper.style.zIndex = ls.zIndexCounter++;
if (this.objOutline) this.objOutline.outer.style.zIndex = this.wrapper.style.zIndex;

this.content.className = 'latentzoom-'+ this.contentType;
if (this.caption) {
ls.setId(this.caption, '-lsBlur' + this.key, 1);
this.caption.className = this.caption.className.replace(' latentzoom-caption-blur', '');
}

if (this.isImage) {
this.content.title = ls.restoreTitle;

ls.styleRestoreCursor = window.opera ? 'pointer' : 'url('+ ls.restoreCursor +'), pointer';
if (ls.ie && ls.ieVersion() < 6) ls.styleRestoreCursor = 'hand';
this.content.style.cursor = ls.styleRestoreCursor;
} else {
ls.setId(this.innerContent, '-lsBlur' + this.key, 1);
}

ls.focusKey = this.key;
ls.addEventListener(document, 'keydown', ls.keyHandler);
};

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

this.isClosing = true;

var x = parseInt(this.wrapper.style.left);
var y = parseInt(this.wrapper.style.top);
var w = (this.isImage) ? this.content.width : parseInt(this.content.style.width);
var h = (this.isImage) ? this.content.height : parseInt(this.content.style.height);

if (this.objOutline && this.outlineWhileAnimating) this.positionOutline(x, y, w, h);
else if (this.objOutline) this.objOutline.destroy();

// 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) {
ls.purge(this.wrapper.childNodes[i]);
this.wrapper.removeChild(this.wrapper.childNodes[i]);
}
}
if (this.isHtml) this.htmlOnClose();

this.wrapper.style.width = 'auto';
this.content.style.cursor = 'default';
var o2 = this.objOutline ? this.objOutline.offset : 0;

this.changeSize(
-1,
x,
y,
w,
h,
this.thumbLeft - this.offsetBorderW + this.thumbOffsetBorderW,
this.thumbTop - this.offsetBorderH + this.thumbOffsetBorderH,
this.thumbWidth,
this.thumbHeight,
ls.restoreDuration,
ls.restoreSteps,
o2,
ls.outlineStartOffset
);

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

LsExpander.prototype.onEndClose = function () {
this.thumb.style.visibility = 'visible';

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

if (this.objOutline && this.outlineWhileAnimating) this.objOutline.destroy();
ls.purge(this.wrapper);
this.wrapper.parentNode.removeChild(this.wrapper);
ls.expanders[this.key] = null;

ls.cleanUp();
};

LsExpander.prototype.createOverlay = function (el, position, hideOnMouseOut, opacity) {
if (typeof el == 'string') el = ls.cloneNode(el);
if (!el || typeof el == 'string' || !this.isImage) return;

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

var left = this.offsetBorderW;
var dLeft = this.content.width - overlay.offsetWidth;
var top = this.offsetBorderH;
var dTop = this.content.height - overlay.offsetHeight;

if (position.match(/^bottom/)) top += dTop;
if (position.match(/^center/)) top += dTop / 2;
if (position.match(/right$/)) left += dLeft;
if (position.match(/center$/)) left += dLeft / 2;

ls.setStyles(overlay, { 'left': left+'px', 'top': top+'px', visibility: 'visible' } );

if (hideOnMouseOut) overlay.setAttribute('hideOnMouseOut', true);

ls.push(this.overlays, overlay);
};

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

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

LsExpander.prototype.onMouseOut = function(rel) {
var hideThese = new Array();
var j = 0;
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[j] = this.overlays[i];
j++;
}
}
for (i = 0; i < hideThese.length; i++) {
hideThese[i].style.visibility = 'hidden';
}
};

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

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

LsExpander.prototype.doFullExpand = function () {
try {
ls.purge(this.fullExpandIcon);
this.fullExpandIcon.parentNode.removeChild(this.fullExpandIcon);
this.focus();

this.x.min = parseInt(this.wrapper.style.left) - (this.fullExpandWidth - this.content.width) / 2;
if (this.x.min < ls.marginLeft) this.x.min = ls.marginLeft;
this.wrapper.style.left = this.x.min +'px';

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

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

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

this.y.span = this.wrapper.offsetHeight - 2 * this.offsetBorderH;
this.positionOutline(this.x.min, this.y.min, this.x.span, this.y.span);

// reposition overlays
for (x in this.overlays) {
ls.purge(this.overlays[x]);
this.overlays[x].parentNode.removeChild(this.overlays[x]);
}

this.createCustomOverlays();

this.redoShowHide();

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

// on end move and resize
LsExpander.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 (ls.hideSelects) this.showHideElements('SELECT', 'hidden', imgPos);
if (ls.hideIframes) this.showHideElements('IFRAME', 'hidden', imgPos);

};

// set handlers
ls.addEventListener(document, 'mousedown', ls.mouseClickHandler);
ls.addEventListener(document, 'mouseup', ls.mouseClickHandler);
//ls.addEventListener(window, 'load', ls.preloadImages);
</script>

</head>

<body>

</a>

</body>

</html>

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