// Audio player code
var ap_instances = new Array();

function ap_stopAll(playerID) {
	for (var i = 0; i < ap_instances.length; i++) {
		try {
			if (ap_instances[i] != playerID) document.getElementById("audioplayer" + ap_instances[i].toString()).SetVariable("closePlayer", 1);
			else document.getElementById("audioplayer" + ap_instances[i].toString()).SetVariable("closePlayer", 0);
		} catch(errorObject) {
			// stop any errors
		}
	}
}

function ap_registerPlayers() {
	var objectID;
	var objectTags = document.getElementsByTagName("object");
	for (var i=0; i<objectTags.length; i++) {
		objectID = objectTags[i].id;
		if(objectID.indexOf("audioplayer") == 0) {
			ap_instances[i] = objectID.substring(11, objectID.length);
		}
	}
}

var ap_clearID = setInterval(ap_registerPlayers, 100);

// Fix any images that need captions by wrapping them in a div
var images = document.getElementById('article').getElementsByTagName('img');
for (var i = 0, len = images.length; i < len; i++) {
	if (images[i].getAttribute('title') && images[i].className.match(/col/)) {
		var wrapper = document.createElement('div');
		wrapper.className = images[i].className;
		images[i].className = '';
		images[i].parentNode.insertBefore(wrapper, images[i]);
		wrapper.appendChild(images[i]);
		var caption = document.createTextNode(images[i].getAttribute('title'));
		wrapper.appendChild(caption);
		wrapper.parentNode.className = 'no-indent';
	}
}

window_onload = function () {
	// Replace Amazon links with correct TLD
	var content_links = document.getElementById('content').getElementsByTagName('a');
	for (var i = 0, len = content_links.length; i <len; i++) {
		var href = content_links[i].getAttribute('href');
		if (href.match(/amazon/)) {
			switch (tld) {
				case 'GB':
					break;
				case 'DE':
					content_links[i].setAttribute('href', href.replace(/amazon\.co\.uk/, 'amazon.de'));
					break;
				case 'FR':
					content_links[i].setAttribute('href', href.replace(/amazon\.co\.uk/, 'amazon.fr'));
					break;
				case 'CA':
					content_links[i].setAttribute('href', href.replace(/amazon\.co\.uk/, 'amazon.ca'));
					break;
				case 'JP':
					content_links[i].setAttribute('href', href.replace(/amazon\.co\.uk/, 'amazon.jp'));
					break;
				default:
					content_links[i].setAttribute('href', href.replace(/amazon\.co\.uk/, 'amazon.com'));
			}
		}
	}
	// Apply Google Tracking to download links
	downloadTracker = pageTracker._createEventTracker( "Download" );
	var track_links = getElementsByClassName('download', 'div', document.getElementById('content'));
	for (var i = 0, len = track_links.length; i < len; i++) {
		var download_link = track_links[i].getElementsByTagName('a')[0];
		download_link.onclick = function () {
			downloadTracker._trackEvent("Download", this.href);
		}
	}
}

/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/	
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};