//This is a general library for working with Overture Content Match links
//Version: 1.0 
//Last Modified: 6-14-2007
//Author: Michael Stenzler
//This is a Javascript object to encapsulate one row of overture data
var overtureItem = function(pdescription, punused, pclickUrl, ptitle, psitehost, pbidded){
	var description = pdescription;
	var unused   = punused;
	var clickUrl = pclickUrl;
	var title    = ptitle;
	var sitehost = psitehost;
	var bidded   = pbidded;
	this.setDescription = function(ldescription){ description = ldescription; }
	this.setUnused = function(lunused){ unused = lunused; }
	this.setClickUrl = function(lclickUrl){ clickUrl = lclickUrl; }
	this.setTitle = function(ltitle){ title = ltitle; }
	this.setSitehost = function(lsitehost){ sitehost = lsitehost; }
	this.setBidded = function(lbidded){ bidded = lbidded; }
	this.getDescription = function(){ return  description; }
	this.getUnused = function(){ return unused; }
	this.getClickUrl = function(){ return clickUrl; }
	this.getTitle = function(){ return title; }
	this.getSitehost = function(){ return sitehost; }
	this.getBidded = function(){ return bidded; }
	this.printItem = function(){
	var printString = "<p>description = " + description + "<br>" +
						"unused = " +  unused + "<br>" +
						"clickUrl = " + clickUrl + "<br>" +
						"title = " +    title + "<br>" +
						"sitehost = " + sitehost + "<br>" +
						"bidded = " +   bidded + "</p>";
	document.writeln(printString);
	}
}
var overtureLinkSpotItem = function(ptitle, pkeywords){
	var title = ptitle;
	var keywords = pkeywords.split(", ");
	this.setTitle = function(ltitle){ title = ltitle; }
	this.setKeywords = function(lkweywords){ keywords = lkeywords; }
	this.setKeywordsFromString = function (lstring){ keywords = lstring.split(", "); }
	this.getTitle = function(){ return title; }
	this.getKeywords = function(){ return keywords; }
	this.getKeyword = function(i){ return keywords[i]; }
	this.printItem = function(){
	var printString = "<p>title = " + title + "<br>" +
						"keywords = ";
	 for(i=0; i<keywords.length; i++){
		if(i>0){ printString += ", " }
		printString += keywords[i];
	}
	document.writeln(printString);
	}
}
//This is a Javascript object to encapsulate an array of Overture Items 
var overtureLinks = function(){
	var listItems = new Array();
	this.addItem = function(item){
	var i = listItems.length;
	listItems[i] = item;
}
	this.getItems = function(){ return listItems; }
	this.getItem = function(i){ return listItems[i]; }
	this.length = function(){ return listItems.length; }
	this.printItems = function(){
	var i = 0;
	while (i < listItems.length){
		var currItem = listItems[i];
		currItem.printItem();
		i++;
	}
	}
}
//This is a Javascript object to hold configuration data for the creation of an
//Overture Search link
var overtureSearchConf = function(){
	var baseUrl = g_baseOvertureSearchUrl;
	var partner = g_overtureSearchPartner;
	var keywords;
	var type;
	var keywordCharEnc;
	var outputCharEnc;
	var urlFilters;
	var termFilters;
	var serveUrl;
	var maxCount;
	this.setBaseUrl = function(lbaseUrl){ baseUrl = lbaseUrl; }
	this.setPartner = function(lpartner){ partner = lpartner; }
	this.setKeywords = function(lkeywords){ keywords = lkeywords; }
	this.setType = function(ltype){ type = ltype; }
	this.setKeywordCharEnc = function(lkeywordCharEnc){ keywordCharEnc = lkeywordCharEnc; } 
	this.setOutputCharEnc = function(loutputCharEnc){ outputCharEnc = loutputCharEnc; } 
	this.setUrlFilters = function(lurlFilters){ urlFilters = lurlFilters; }
	this.setTermFilters = function(ltermFilters){ termFilters = ltermFilters; }
	this.setServeUrl = function(lserveUrl){ serveUrl = lserveUrl; }
	this.setMaxCount = function(lmaxCount){ maxCount = lmaxCount; }
	this.getBaseUrl = function(){ return baseUrl; }
	this.getPartner = function(){ return partner; }
	this.getKeywords = function(){ return keywords; }
	this.getType = function(){ return type; }
	this.getKeywordCharEnc = function(){ return keywordCharEnc; }
	this.getOutputCharEnc = function(){ return outputCharEnc; }
	this.getUrlFilters = function(){ return urlFilters; }
	this.getTermFilters = function(){ return termFilters; }
	this.getServeUrl = function(){ return serveUrl; }
	this.getMaxCount = function(){ return maxCount; }
}
//This is a Javascript object to hold configuration data for the creation of a content
//match link
var overtureContentMatchConf = function(){
	var baseUrl = g_baseOvertureCMUrl;
	var source = g_overtureCMSource;
	var config = g_overtureCMConfig;
	var ctxtId;
	var ctxtIdMap;
	var ctxtUrl;
	var ctxtCat;
	var ctxtCatMap;
	var ctxtKeywords;
	var mkt;
	var type;
	var typeMap;
	var keywordCharEnc;
	var outputCharEnc;
	var maxCount;
	this.setBaseUrl = function(lbaseUrl){ baseUrl = lbaseUrl; }
	this.setSource = function(lsource){ partner = lsource; }
	this.setCtxtId = function(lctxtId){ ctxtId = lctxtId; }
	this.setCtxtIdMap = function(lctxtIdMap){ ctxtIdMap = lctxtIdMap; }
	this.setCtxtUrl = function(lctxtUrl){ ctxtUrl = lctxtUrl; }
	this.setCtxtCat = function(lctxtCat){ ctxtCat = lctxtCat; }
	this.setCtxtCatMap = function(lctxtCatMap){ ctxtCatMap = lctxtCatMap; }
	this.setCtxtKeywords = function(lctxtKeywords){ ctxtKeywords = lctxtKeywords; }
	this.setMkt = function(lmkt){ mkt = lmkt; }
	this.setType = function(ltype){ type = ltype; }
	this.setTypeMap = function(ltypeMap){ typeMap = ltypeMap; }
	this.setKeywordCharEnc = function(lkeywordCharEnc){keywordCharEnc = lkeywordCharEnc; }
	this.setOutputCharEnc = function(loutputCharEnc){ outputCharEnc = loutputCharEnc; }
	this.setConfig = function(lconfig){ config = lconfig; }
	this.setMaxCount = function(lmaxCount){ maxCount = lmaxCount; }
	this.getBaseUrl = function(){ return baseUrl; }
	this.getSource = function(){ return source; }
	this.getCtxtId = function(){ return ctxtId; }
	this.getCtxtIdMap = function(){ return ctxtIdMap; }
	this.getCtxtUrl = function(){ return ctxtUrl; }
	this.getCtxtCat = function(){ return ctxtCat; }
	this.getCtxtCatMap = function(){ return ctxtCatMap; }
	this.getCtxtKeywords = function(){ return ctxtKeywords; }
	this.getMkt = function(){ return mkt; }
	this.getType = function(){ return type; }
	this.getTypeMap = function(){ return typeMap; }
	this.getKeywordCharEnc = function(){ return keywordCharEnc; }
	this.getOutputCharEnc = function(){ return outputCharEnc; }
	this.getConfig = function(){ return config; }
	this.getMaxCount = function(){ return maxCount; }
}
//This is a Javascript object to hold configuration data for the creation of an
//Overture Linkspot link
var overtureLinkspotConf = function(){
	var baseUrl =  g_baseOvertureLinkspotUrl;
	var source = g_overtureLinkspotSource;
	var config = g_overtureLinkspotConfig;
	var linkspotId;
	var linkspotIdMap;
	var nGrp;
	var nKw;
	this.setBaseUrl = function(lbaseUrl){ baseUrl = lbaseUrl; }
	this.setSource = function(lsource){ source = lsource; }
	this.setLinkspotId = function(llinkspotId){ linkspotId = llinkspotId; }
	this.setLinkspotIdMap = function(llinkspotIdMap){ linkspotIdMap = llinkspotIdMap; }
	this.setConfig = function(lconfig){ config = lconfig; }
	this.setNGrp = function(lnGrp){ nGrp = lnGrp; } 
	this.setNKw = function(lnKw){ nKw = lnKw; } 
	this.getBaseUrl = function(){ return baseUrl; }
	this.getSource = function(){ return source; }
	this.getLinkspotId = function(){ return linkspotId; }
	this.getLinkspotIdMap = function(){ return linkspotIdMap; }
	this.getConfig = function(){ return config; }
	this.getNGrp = function(){ return nGrp; }
	this.getNKw = function(){ return nKw; }
}
//This function creates an overtureLinks object from the linkData passed in
//note linkData will normally be the zSr array populated by Overture
function populateOvertureLinks (linkData){
	var i = 0;
	var rank = 0;
	var ret = new overtureLinks();
	while (i < linkData.length){
		rank++;
		var description  = linkData[i++];
		var unused   = linkData[i++];
		var clickUrl = linkData[i++];
		var title    = linkData[i++];
		var sitehost = linkData[i++];
		var bidded   = linkData[i++];
		//skip the first returned add
		if (rank > 1){
		var currItem = new overtureItem(description, unused, clickUrl, title, sitehost, bidded);
		ret.addItem(currItem);
		}
	}
	return ret;
}
//This function creates an overtureLinks object from the linkData passed in for linksSpots
//note linkData will normally be the mapKey array populated by Overture
function populateOvertureLinkspots (linkData){
	var ret = new overtureLinks();
	for (var i=0; i<linkData.length; i++){
		var currItem = new overtureLinkSpotItem(linkData[i].title, linkData[i].keywords);
		ret.addItem(currItem);
	}
	return ret;
}
//function to show all the links
function showLinkData(linkData, startIndex, endIndex){
if (startIndex == undefined){
	startIndex = 0;
}
	var links = linkData.getItems();
	var outString = "<table border=1><tr><th>Description</th><th>Unused</th><th>ClickUrl</th><th>Title</th><th>SiteHost</th><th>Bidded</th></tr>";
	var arrLength = links.length;
	if (endIndex == undefined || endIndex == 0){
		endIndex = arrLength;
}
	else{
	if (endIndex > arrLength){
	endIndex = arrLength;
	}
}
var i = startIndex;
while ( i < endIndex){
var currItem = links[i];
outString += "<tr><td>" + checkEmpty(currItem.getDescription()) + "</td><td>" + checkEmpty(currItem.getUnused()) + "</td><td>" + checkEmpty(currItem.getClickUrl()) + "</td><td>" + checkEmpty(currItem.getTitle()) + "</td><td>" + checkEmpty(currItem.getSitehost()) +  "</td><td>" + checkEmpty(currItem.getBidded()) + "</td></tr>\n";
i++;
}
outString += "</table>";
return outString;
}
//returns a nbsp character if a string is empty
function checkEmpty(str){
	if ( (str == undefined) || (str == "")){
	return "&nbsp;";
	}
	else{
		return str;
	}
}
//This function creates a link to fetch the Content Match data from Overture
function createOvertureSearchLink(conf){
	var baseLink = conf.getBaseUrl();
	var partner = conf.getPartner();
	var keywords = conf.getKeywords();
	var type = conf.getType();
	var keywordCharEnc = conf.getKeywordCharEnc();
	var outputCharEnc= conf.getOutputCharEnc();
	var urlFilters = conf.getUrlFilters();
	var termFilters = conf.getTermFilters();
	var serveUrl = conf.getServeUrl();
	var maxCount = conf.getMaxCount();  
	if ( isEmpty(baseLink)){
		baseLink = g_baseOvertureSearchUrl;
	}
	if ( isEmpty(partner)){
		partner = g_overtureSearchPartner;
	}
	if ( isEmpty(serveUrl)){
	serveUrl = window.location.href;
}
	var retString = baseLink + "?Partner=" + urlEncode(partner);
	if ( !isEmpty(keywordCharEnc) ){
		retString += "&keywordCharEnc=" + urlEncode(keywordCharEnc);
	}
	if ( !isEmpty(outputCharEnc) ){
		retString += "&outputCharEnc=" + urlEncode(outputCharEnc);
	}
	if ( !isEmpty(keywords) ){
		retString += "&Keywords=" + urlEncode(keywords);
	}
	if ( !isEmpty(type) ){
		retString += "&type=" + urlEncode(type);
	}
	if ( !isEmpty(urlFilters)){
		retString += "&urlFilters=" + urlFilters;
	}
	if ( !isEmpty(termFilters)){
		retString += "&termFilters=" + termFilters;
	}
	if ( !isEmpty(serveUrl)){
		retString += "&serveUrl=" + urlEncode(serveUrl);
	}
	if ( !isEmpty(maxCount)){
		retString += "&maxCount=" + urlEncode(maxCount);
	}
	return retString;
}
//This function creates a link to fetch the Content Match data from Overture
function createOvertureCMLink(conf){
	var baseLink = conf.getBaseUrl();
	var source = conf.getSource();
	var ctxtUrl = conf.getCtxtUrl();
	var ctxtId = conf.getCtxtId();
	var ctxtIdMap = conf.getCtxtIdMap();
	var ctxtCat = conf.getCtxtCat();
	var ctxtCatMap = conf.getCtxtCatMap();
	var ctxtKeywords = conf.getCtxtKeywords();
	var mkt = conf.getMkt();
	var type = conf.getType();
	var typeMap = conf.getTypeMap();
	var keywordCharEnc = conf.getKeywordCharEnc();
	var outputCharEnc= conf.getOutputCharEnc();
	var config = conf.getConfig();
	var maxCount = conf.getMaxCount();
	//cb is cache buster. its a random number to prevent caching
	var cb = randomnumber=Math.floor(Math.random()*100000);
	if (ctxtUrl == undefined){
		ctxtUrl = "http://" + window.location.hostname +  window.location.pathname;
	}
	if (isEmpty(ctxtId) && !isEmpty(ctxtIdMap)){
		//get the ctxtId from the specified map based on the current uri
	ctxtId = getMappingValue(ctxtIdMap);
	}
	if (isEmpty(ctxtCat) && !isEmpty(ctxtCatMap)){
		//get the ctxtCat from the specified map based on the current uri
	ctxtCat = getMappingValue(ctxtCatMap);
	}
	if (isEmpty(type) && !isEmpty(typeMap)){
		//get the type from the specified map based on the current uri
	type = getMappingValue(typeMap);
	}
	if (isEmpty(baseLink)){
	baseLink = g_baseOvertureCMUrl;
	}
	if (isEmpty(source)){
		source = g_overtureCMSource;
	}
	var retString = baseLink + "?source=" + urlEncode(source);
	if (!isEmpty(keywordCharEnc)){
		retString += "&keywordCharEnc=" + urlEncode(keywordCharEnc);
	}
	if ( !isEmpty(outputCharEnc) ){
		retString += "&outputCharEnc=" + urlEncode(outputCharEnc);
	}
	if ( !isEmpty(ctxtId) ){
		retString += "&ctxtId=" + urlEncode(ctxtId);
	}
	if ( !isEmpty(ctxtCat) ){
		retString += "&ctxtCat=" + urlEncode(ctxtCat);
	}
	if ( !isEmpty(ctxtKeywords) ){
		retString += "&ctxtKeywords=" + urlEncode(ctxtKeywords);
	}
	if (!isEmpty(ctxtUrl)){
		retString += "&ctxtUrl=" + urlEncode(ctxtUrl);
	}
	if ( !isEmpty(type) ){
		retString += "&type=" + urlEncode(type);
	}
	if ( !isEmpty(cb) ){
		retString += "&cb=" + urlEncode(cb);
	}
	if ( !isEmpty(config) ){
		retString += "&config=" + urlEncode(config);
	}
	if (!isEmpty(maxCount) ){
		retString += "&maxCount=" + urlEncode(maxCount);
	}
	if (!isEmpty(mkt) ){
		retString += "&mkt=" + urlEncode(mkt);
	}
	return retString;
}
//This function creates a link to fetch the linkspot data from Overture
function createOvertureLinkspotLink(conf){
	var baseLink = conf.getBaseUrl();
	var source = conf.getSource();
	var linkspotId = conf.getLinkspotId();
	var linkspotIdMap = conf.getLinkspotIdMap();
	var config = conf.getConfig();
	var nGrp = conf.getNGrp();
	var nKw= conf.getNKw();
	if ( (baseLink == undefined) || (baseLink == "")){
	baseLink = g_baseOvertureLinkspotUrl;
	}
	if ( (source == undefined) || (source == "")){
	source = g_overtureLinkspotSource;
	}
	if (isEmpty(linkspotId) && !isEmpty(linkspotIdMap)){
		//get the linkspotId from the specified map based on the current uri
	linkspotId = getMappingValue(linkspotIdMap);
	}
	var retString = baseLink + "?config=" + urlEncode(config);
	if ( !isEmpty(linkspotId) ){
		retString += "&linkspotId=" + urlEncode(linkspotId);
	}
	if ( !isEmpty(nKw) ){
	  retString += "&NKw=" + urlEncode(nKw);
	}
	if ( !isEmpty(nGrp) ){
		retString += "&NGrp=" + urlEncode(nGrp);
	}
	if ( !isEmpty(source) ){
		retString += "&source=" + urlEncode(source);
	}
	return retString;
	}
//load in the array
function loadOvertureLinks(){
	this.overturLinks;
	if(zSr != undefined){
		this.overturLinks = populateOvertureLinks(zSr);
	}
}
//load in the array for linkspots
function loadOvertureLinkspots(){
	if(!isEmpty(mapkey)){
		overturLinkspots = populateOvertureLinkspots(mapkey);
	}
}
//This function gets the first 10 keywords from the page metatag
function getMetaTagKeywords (){
	var keywords = "";
	//try to get the keywords from the metatags
	if (document.getElementsByName){
		var metaArray = document.getElementsByName('keywords');
		var maxLength = metaArray.length;
		if (maxLength > 10){ maxLength = 10; }
		for (var i=0; i<maxLength; i++){
			if (i>0){ keywords += " "; }
			keywords += metaArray[i].content; 
		}
	}
	return keywords;
}
//Creates and prints the javascript src= code to include the 
//Content Match links
function loadOvertureCMInclude(conf){
	var url = createOvertureCMLink(conf);
	printSrcInclude(url);
}
//Creates and prints the javascript src= code to include the 
//Search links
function loadOvertureSearchInclude(conf){
	var url = createOvertureSearchLink(conf);
	printSrcInclude(url)
}
//Creates and prints the javascript src= code to include the 
//Links spots
function loadOvertureLinkspotInclude(conf){
	var url = createOvertureLinkspotLink(conf);
	printSrcInclude(url)
}
//Prints the javascript src= code to include the zSr array with the links
function printSrcInclude(url){
	document.write("<script language=\"Javascript\" src=\"" + url + "\"></script>");
}
//Checks to see if a string is empty
function isEmpty(str){
	if ( (str == undefined) || (str == "")){
		return true;
	}
	else{
		return false;
	}
}
//HTTP Encode a url
function urlEncode(sStr){
		return escape(sStr)
		.replace(/\+/g, '%2B')
			.replace(/\"/g,'%22')
			.replace(/\//g, '%2F')
				.replace(/\'/g, '%27');
}
//This function takes a map (a hashtable) and a string. If the string is omitted the current uri is
//used. Each key of the map is compared to the string and if the key matches the begining of the 
//String (i.e. key /music would match /music/foobar/index.jhtml), then the value for the key is
//returned as the result. Used for mapping ids to sections of the site
function getMappingValue(map, str){
	if (str == undefined){
		//if no match string is given then use the document uri
		str = window.location.pathname;
	}
	for (var key in map){
		var exp = "^" + key;
		var re = new RegExp(exp, "i");
		if(re.test(str)){
		return map[key];
		}
	}
	return undefined;
}