highslide-full.js

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/******************************************************************************
Name:    Highslide JS
Version: 3.3.6 (January 6 2008)
Config:  default +positioning +events +unobtrusive +transitions +inline +ajax +iframe +flash
Author:  Torstein H鴑si
Support: http://vikjavev.no/highslide/forum

Licence:
Highslide JS is licensed under a Creative Commons Attribution-NonCommercial 2.5
License (http://creativecommons.org/licenses/by-nc/2.5/).

You are free:
	* to copy, distribute, display, and perform the work
	* to make derivative works

Under the following conditions:
	* Attribution. You must attribute the work in the manner  specified by  the
	  author or licensor.
	* Noncommercial. You may not use this work for commercial purposes.

* For  any  reuse  or  distribution, you  must make clear to others the license
  terms of this work.
* Any  of  these  conditions  can  be  waived  if  you  get permission from the 
  copyright holder.

Your fair use and other rights are in no way affected by the above.
******************************************************************************/

var hs = {

// Apply your own settings here, or override them in the html file.  
graphicsDir : 'highslide/graphics/',
restoreCursor : 'zoomout.cur', // necessary for preload
expandSteps : 10, // number of steps in zoom. Each step lasts for duration/step milliseconds.
expandDuration : 250, // milliseconds
restoreSteps : 10,
restoreDuration : 250,
marginLeft : 15,
marginRight : 15,
marginTop : 15,
marginBottom : 15,
zIndexCounter : 1001, // adjust to other absolutely positioned elements

restoreTitle : 'Click to close image, click and drag to move. Use arrow keys for next and previous.',
loadingText : 'Loading...',
loadingTitle : 'Click to cancel',
loadingOpacity : 0.75,
focusTitle : 'Click to bring to front',
allowMultipleInstances: true,
numberOfImagesToPreload : 5,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
padToMinWidth : false, // pad the popup width to make room for wide caption
outlineWhileAnimating : 2, // 0 = never, 1 = always, 2 = HTML only 
outlineStartOffset : 3, // ends at 10
fullExpandTitle : 'Expand to actual size',
fullExpandPosition : 'bottom right',
fullExpandOpacity : 1,
showCredits : true, // you can set this to false if you want
creditsText : 'Powered by <i>Highslide JS</i>',
creditsHref : 'http://vikjavev.no/highslide/',
creditsTitle : 'Go to the Highslide JS homepage',
enableKeyListener : true,
transitions : [],
dimmingOpacity: 0, // Lightbox style dimming background


// HTML extension

previousText : 'Previous',
nextText : 'Next', 
moveText : 'Move',
closeText : 'Close', 
closeTitle : 'Click to close', 
resizeTitle : 'Resize',
allowWidthReduction : false,
allowHeightReduction : true,
preserveContent : true, // Preserve changes made to the content and position of HTML popups.
objectLoadTime : 'before', // Load iframes 'before' or 'after' expansion.
cacheAjax : true, // Cache ajax popups for instant display. Can be overridden for each popup.

// 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,
spaceForCaption : 30, // leaves space below images with captions
slideshowGroup : null, // defines groups for next/previous links and keystrokes
minWidth: 200,
minHeight: 200,
allowSizeReduction: true, // allow the image to reduce to fit client size. If false, this overrides minWidth and minHeight
outlineType : 'drop-shadow', // set null to disable outlines
wrapperClassName : 'highslide-wrapper', // for enhanced css-control

// END OF YOUR SETTINGS


// declare internal properties
preloadTheseImages : [],
continuePreloading: true,
expanders : [],
overrides : [
	'allowSizeReduction',
	'anchor',
	'align',
	'targetX',
	'targetY',
	'outlineType',
	'outlineWhileAnimating',
	'spaceForCaption',
	'captionId',
	'captionText',
	'captionEval',
	'transitions',
	'dimmingOpacity',
	
	'contentId',
	'allowWidthReduction',
	'allowHeightReduction',
	'preserveContent',
	'objectType',	
	'cacheAjax',	
	'objectWidth',
	'objectHeight',
	'objectLoadTime',	
	'swfObject',
	'wrapperClassName',
	'minWidth',
	'minHeight',
	'slideshowGroup'
],
overlays : [],
faders : [],

pendingOutlines : {},
sleeping : [],
preloadTheseAjax : [],
cacheBindings : [],
cachedGets : {},
clones : {},
ie : (document.all && !window.opera),
safari : /Safari/.test(navigator.userAgent),
geckoMac : /Macintosh.+rv:1\.[0-8].+Gecko/.test(navigator.userAgent),

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

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

createElement : function (tag, attribs, styles, parent, nopad) {
	var el = document.createElement(tag);
	if (attribs) hs.setAttribs(el, attribs);
	if (nopad) hs.setStyles(el, {padding: 0, border: 'none', margin: 0});
	if (styles) hs.setStyles(el, styles);
	if (parent) parent.appendChild(el);	
	return el;
},

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

setStyles : function (el, styles) {
	for (var x in styles) {
		try { 
			if (hs.ie && x == 'opacity') el.style.filter = 'alpha(opacity='+ (styles[x] * 100) +')';
			else el.style[x] = styles[x]; 
		}
		catch (e) {}
	}
},

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

getPageSize : function () {
	var iebody = document.compatMode && document.compatMode != "BackCompat" 
		? document.documentElement : document.body;	
	
	
	var b = document.body;
	var xScroll = (window.innerWidth && window.scrollMaxX) 
			? window.innerWidth + window.scrollMaxX :
				(b.scrollWidth > b.offsetWidth ? b.scrollWidth : b.offsetWidth),
		yScroll = (window.innerHeight && window.scrollMaxY) 
			? window.innerHeight + window.scrollMaxY :
				(b.scrollHeight > b.offsetHeight ? b.scrollHeight : b.offsetHeight),
		pageWidth = hs.ie ? iebody.scrollWidth :
			(document.documentElement.clientWidth || self.innerWidth);
      	pageHeight = hs.ie ? iebody.clientHeight : 
			(document.documentElement.clientHeight || self.innerHeight);
	
	var width = hs.ie ? iebody.clientWidth : 
			(document.documentElement.clientWidth || self.innerWidth),
		height = hs.ie ? iebody.clientHeight : self.innerHeight;
	
	return {
		pageWidth: xScroll < pageWidth ? pageWidth : xScroll,
		pageHeight: yScroll < pageHeight ? pageHeight : yScroll,
		width: width,
		height: height,		
		scrollLeft: hs.ie ? iebody.scrollLeft : pageXOffset,
		scrollTop: hs.ie ? iebody.scrollTop : pageYOffset
	}
},

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

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

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

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

getSelfRendered : function() {
	var s =	
		 '<div class="highslide-header"><ul>'
		+	'<li class="highslide-previous"><a onclick="return hs.previous(this)" href="#">'+ hs.previousText +'</a></li>'
		+	'<li class="highslide-next"><a onclick="return hs.next(this)" href="#">'+ hs.nextText +'</a></li>'
		+	'<li class="highslide-move"><a href="#" onclick="return false">'+ hs.moveText +'</a></li>'
		+	'<li class="highslide-close"><a onclick="return hs.close(this)" title="'+ hs.closeTitle +'" href="#">'
			+ hs.closeText +'</a></li>'
		+'</ul></div>'
		+'<div class="highslide-body"></div>'
		+'<div class="highslide-footer"><div>'
		+	'<span class="highslide-resize" title="'+ hs.resizeTitle +'"><span></span></span>'
		+'</div></div>';
	return hs.createElement('div', { className: 'highslide-html-content', innerHTML: s } );
},


setClickEvents : function () {
	var els = document.getElementsByTagName('A');
	for (var i = 0; i < els.length; i++) {
		if (/^highslide$/.test(els[i].rel)) {
			if (hs.fireEvent(hs, 'onSetClickEvent', { element: els[i] })) {
			
				els[i].onclick = function() { return hs.expand(this) };
			}
			
			els[i].removeAttribute('rel');	
		}
		
		var match = /^highslide-(ajax|iframe)$/.exec(els[i].rel);
		if (match) {
			(function(){
				var t = match[1];
				if (hs.fireEvent(hs, 'onSetClickEvent', { element: els[i], type: t })) {
				
					els[i].onclick = function() {
						return hs.htmlExpand(this, { objectType: t } ); 
					};
				}
			})();
			els[i].removeAttribute('rel');
		}
	}
	if (!hs.pageLoaded) setTimeout( hs.setClickEvents, 50);
},

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

preloadAjax : function (e) {
	var aTags = document.getElementsByTagName('A');
	var a, re;
	for (var i = 0; i < aTags.length; i++) {
		a = aTags[i];
		re = hs.isHsAnchor(a);
		if (re && re[0] == 'hs.htmlExpand' && hs.getParam(a, 'objectType') == 'ajax' 
				&& hs.getParam(a, 'cacheAjax')) {
			hs.push(hs.preloadTheseAjax, a);
		}
	}
	hs.preloadAjaxElement(0);
},

preloadAjaxElement : function (i) {
	if (!hs.preloadTheseAjax[i]) return;
	var a = hs.preloadTheseAjax[i];
	var cache = hs.getNode(hs.getParam(a, 'contentId'));
	if (!cache) cache = hs.getSelfRendered();
	var ajax = new hs.Ajax(a, cache, 1);	
   	ajax.onError = function () { };
   	ajax.onLoad = function () {
   		hs.push(hs.cacheBindings, [a, cache]);
   		hs.preloadAjaxElement(i + 1);
   	};
   	ajax.run();
},

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

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

getParam : function (a, param) {
	a.getParams = a.onclick;
	var p = a.getParams();
	a.getParams = null;
	
	return (p && typeof p[param] != 'undefined') ? p[param] : hs[param];
},

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

getNode : function (id) {
	var node = hs.$(id), clone = hs.clones[id], a = {};
	if (!node && !clone) return null;
	if (!clone) {
		clone = node.cloneNode(true);
		clone.id = '';
		hs.clones[id] = clone;
		return node;
	} else {
		return clone.cloneNode(true);
	}
},

purge : function(d) {
	if (!hs.ie) return;
	var a = d.attributes, i, l, n;
	if (a) {
		l = a.length;
		for (var i = 0; i < l; i += 1) {
			n = a[i].name;
			if (typeof d[n] === 'function') {
				d[n] = null;
			}
		}
	}
	a = d.childNodes;
	if (a) {
		l = a.length;
		for (var i = 0; i < l; i += 1) {
			hs.purge(d.childNodes[i]);
		}
	}
},
dim : function(exp) {
	if (!hs.dimmer) {
		hs.dimmer = hs.createElement ('div', 
			{ className: 'highslide-dimming', onclick: function() { hs.close() } }, 
			{ position: 'absolute' }, hs.container, true);
		hs.addEventListener(window, 'resize', hs.setDimmerSize);