var cnnad_tileID = cnnad_getID();
var cnnad_enabled = true;
var cnnad_adIframes = new Array();
var cnnad_adIframeSrc = {};


// browser detection
var cnnad_IE = (document.all) ? 1 : 0;
var cnnad_DOM = (document.getElementById) ? 1 : 0;
var cnnad_NS4 = (document.layers) ? 1 : 0;
var cnnad_MAC = ( (navigator.appVersion.indexOf("PPC") >0) || (navigator.appVersion.indexOf("Mac") >0) ) ? 1 : 0;
var cnnad_ua = '$User_Agent';
var cnnad_OPERA = (cnnad_ua.indexOf("Opera") > 0) ? 1 : 0;

// flag for geo targetting image
alreadySwappedDETargetImage = false;
var cnnDEadDEonCookie = false;

// document domain security issues
var cnnDocDomain = cnnad_getTld(location.hostname);
if (cnnDocDomain) {document.domain = cnnDocDomain;}


//additions for audience targeting
//ADM send functionality
//pagemodes - 1(all tags) - DM_cat(), DM_addToLoc(), DM_tag();
//pagemodes - 2(health) -  DM_tag();
//pagemodes - 3(none);
var cnnad_pageMode = 1;
var cnnad_calledURLs = new Array(); //associative array
var cnnad_successfulSend = 0;
var cnnad_resultArray = new Array();

var cnnad_ADMSizes = new Array();
// Set default sizes, can be overridden with cnnad_setADMSizes
cnnad_ADMSizes = ["728x90","300x250","336x280","160x600","336x850","300x600"];

function cnnad_setADMSizes(admSizesArray) {
	// Use this function to override ADM ad sizes to be sent
	cnnad_ADMSizes = admSizesArray;
}

function cnnad_parseReferrer(url) {
	// take a url, typically document.referrer, and parse out the domain,
	// eg "http://edition.cnn.com/story/otherstuff&refresh=1" returns "cnn.com"
	if (!url) {
		return null;
	}
	var data = url.substring(0, url.indexOf('/', 7));
	if (data.indexOf(':', 5) > 0)
	data = data.substring(0, url.indexOf(':', 5));
	data = data.substring(data.lastIndexOf('/')+1);
	var datachop = data.split('.');
	return(datachop[datachop.length-2] + '.' + datachop[datachop.length-1]);
}


function cnnad_sendADMData() {
	var finalExpression = "";

	for(as=0;as<cnnad_ADMSizes.length;as++){
		var calledURL = cnnad_calledURLs[cnnad_ADMSizes[as]];
		if(calledURL && cnnad_successfulSend == 0){
			if(cnnad_pageMode != 3){
				finalExpression += '<scr' + 'ipt> \n ';
				if(cnnad_pageMode == 1){
					finalExpression += '	A09801.DM_cat("';
					var site = cnnad_getParamValue(calledURL, "site=","&");
					var rollup = cnnad_getParamValue(calledURL, "_rollup=","&");
					var section = cnnad_getParamValue(calledURL, "_section=","&");
					var subsection = cnnad_getParamValue(calledURL, "_subsection=","&");
					var referrerTld = cnnad_parseReferrer(document.referrer);
					
					finalExpression += site;
					if((site!="") && ((rollup!="") || (section!="") || (subsection!=""))){
						finalExpression += " > ";
					}
					finalExpression += rollup;
					if((rollup!="") && ((section!="") || (subsection!=""))){
						finalExpression += " > ";
					}
					finalExpression += section;
					if((section!="") && (subsection!="")){
						finalExpression += " > ";
					}
					finalExpression += subsection;
					finalExpression += '"); \n ';
					if (referrerTld)
						finalExpression += ' A09801.DM_addEncToLoc("refer", "' + referrerTld + '"); \n ';
					else
						finalExpression += ' A09801.DM_addEncToLoc(); \n ';
				}
				finalExpression += '	A09801.DM_tag(); \n ';
				finalExpression += '</scr' + 'ipt> \n ';
				//alert(finalExpression);
				document.write(finalExpression);
			}
			cnnad_successfulSend = 1;
			break;
		}
	}
}

function cnnad_getParamValue(paramString, parameter, endCharacter){
	if(paramString.match(parameter)){
		var startOfString = paramString.indexOf(parameter)+parameter.length;
		var endOfString = paramString.indexOf(endCharacter,startOfString);
	 	var parameterValue = paramString.substring(startOfString,endOfString);
	 	return parameterValue;
	 }
	 else{
	 	return "";
	 }
}

function reverseString (input)
{
	// convert everything to a string
	input = "" + input;
	var output = '';

	if (input.length)
	{
		var i;
		for (i = input.length; i > 0; i--)
		{
			output += input.charAt(i-1);
		}
	}
	return(output);
}

function cnnad_getID() {
	return (reverseString(new Date().getTime()));
}

function cnnad_renderAd(cnnad_url) {
	if(cnnad_enabled == true) {
		document.open();
		document.write("<script type=\"text/javascript\"");
		document.write(" src=\""+cnnad_url+"&tile="+cnnad_getDynamicTileID(cnnad_url)+"\"></scr");
		document.write("ipt>");
		document.close();
	}
}

function cnnad_preview(cnnad_adstring) {
	if ( location.host.indexOf("turner.com") > -1) {
		// we are on preview (or on local subnet, so we have to use internal names)
		cnnad_adstring = cnnad_adstring.replace(new RegExp("ads\..*?\.com","gi"),"ads.turner.com");
	}
	return cnnad_adstring;
}

function cnnad_createAdNoTileId(adId,cnnad_url,cnnad_height,cnnad_width) {
	cnnad_url = cnnad_preview(cnnad_url);
	cnnad_url += '&page.allowcompete=yes&domId=' + adId;
	cnnad_adIframeSrc[adId] = cnnad_getDynamicTileID(cnnad_url);
	document.write('<iframe ALLOWTRANSPARENCY="true" hspace="0" vspace="0" marginHeight="0" marginWidth="0" src="' + cnnad_url + '" border="0" frameBorder="0" height="0" width="0" scrolling="no"  id="'+adId+'" style="position: absolute; visibility: hidden;" ></iframe>');
}

function cnnad_createAdTransNoTileId(adId,cnnad_url,cnnad_height,cnnad_width) {
	cnnad_url = cnnad_preview(cnnad_url);
	cnnad_url += '&page.allowcompete=yes&domId=' + adId;
	cnnad_adIframeSrc[adId] = cnnad_url;
	document.write('<iframe ALLOWTRANSPARENCY="true" hspace="0" vspace="0" marginHeight="0" marginWidth="0" src="' + cnnad_url + '" border="0" frameBorder="0" height="0" width="0" scrolling="no"  id="'+adId+'" style="position: absolute; visibility: hidden;" ></iframe>');
}

function cnnad_createAd(adId,cnnad_url,cnnad_height,cnnad_width) {
	cnnad_url = cnnad_preview(cnnad_url);
	cnnad_url += '&tile=' + cnnad_getDynamicTileID(cnnad_url) + '&page.allowcompete=yes&domId=' + adId;
	cnnad_adIframeSrc[adId] = cnnad_url;
	document.write('<iframe ALLOWTRANSPARENCY="true" hspace="0" vspace="0" marginHeight="0" marginWidth="0" src="' + cnnad_url + '" border="0" frameBorder="0" height="0" width="0" scrolling="no"  id="'+adId+'" style="position: absolute; visibility: hidden;" ></iframe>');

// ADM functionality
	var adSize = new String();
	
	if(cnnad_url.match("_position=") ){
		adSize = cnnad_getParamValue(cnnad_url, "_position=", "_");
	}
	else if(cnnad_url.match("_pos=")){
		adSize = cnnad_getParamValue(cnnad_url, "_pos=", "_");
	}
	else {
		adSize = "";
	}
	
	cnnad_calledURLs[adSize] = cnnad_url;
// END ADM functionality

}

//DYNAMIC TYLEID
var cnnad_adTileIDGroup = new Array();
var cnnad_newTileIDIteration = 0;

function cnnad_newTileIDGroup(newGroupArray) {
	var newTileID = (cnnad_tileID * 1 + (++cnnad_newTileIDIteration));
	for (var i = 0; i < newGroupArray.length; i++) {
		cnnad_adTileIDGroup[cnnad_adTileIDGroup.length] = {tileID:newTileID, adName:newGroupArray[i]}; 
	}
	
}

function cnnad_getDynamicTileID(adURL) {
	// alert(adURL);
	var returnId = cnnad_tileID;
	if(cnnad_adTileIDGroup.length > 0){
		var ad_position;
		if(adURL.match("_position=") ){
			ad_position = cnnad_getParamValue(adURL, "_position=", "&");
		}
		else if(adURL.match("_pos=")){
			ad_position = cnnad_getParamValue(adURL, "_pos=", "&");
		}
		else {
			ad_position = "";
		}
		for (var i = 0; i < cnnad_adTileIDGroup.length; i++) {
			var adName = cnnad_adTileIDGroup[i].adName;
			if(ad_position == adName){
				returnId = cnnad_adTileIDGroup[i].tileID;
				break;
			}
		}
	}
	return returnId;
}
//END DYNAMIC TYLEID

function cnnad_createAdTrans(adId,cnnad_url,cnnad_height,cnnad_width) {
	cnnad_url = cnnad_preview(cnnad_url);
	cnnad_url += '&tile=' + cnnad_getDynamicTileID(cnnad_url) + '&page.allowcompete=yes&domId=' + adId;
	cnnad_adIframeSrc[adId] = cnnad_url;
	document.write('<iframe ALLOWTRANSPARENCY="true" hspace="0" vspace="0" marginHeight="0" marginWidth="0" src="' + cnnad_url + '" border="0" frameBorder="0" height="0" width="0" scrolling="no"  id="'+adId+'" style="position: absolute; visibility: hidden;" ></iframe>');
}

function cnnad_createAdCompanion(adId, url, height, width, tileId) {
	url = cnnad_preview(url);
	url += '&tile=' + tileId + '&page.allowcompete=yes&domId=' + adId;
	cnnad_adIframeSrc[adId] = url;
	document.write('<iframe ALLOWTRANSPARENCY="true" hspace="0" vspace="0" marginHeight="0" marginWidth="0" src="' + url + '" border="0" frameBorder="0" height="0" width="0" scrolling="no"  id="'+adId+'" style="position: absolute; visibility: hidden;" ></iframe>');
}

function cnnad_writeAd(cnnad_callid,cnnad_url) {
	if(cnnad_enabled == true) {
		document.write("<script id=\"" + cnnad_callid + "\" type=\"text/javascript\" onload=\"cnnSendData();\"");
		document.write(" src=\""+cnnad_url+"&tile="+cnnad_getDynamicTileID(cnnad_url)+"\"></scr");
		document.write("ipt>");
	}
}

function cnnad_showAd(cnnad_id) {
	if (document.getElementById(cnnad_id))
	{
		document.getElementById(cnnad_id).style.position = 'relative';
		document.getElementById(cnnad_id).style.visibility = 'visible';
	} else 
	{
		//alert("Error displaying ad component: " + cnnad_id);	
		// just do not display the ad. -sg
	}
}

function cnnad_setAdSize(docId,height,width) {
	var i = document.getElementById(docId);
	if (i) {
		i.height = height;
		i.width = width;
		i.className += ' adunit_'+width+'x'+height;
	}
}

function cnnad_readCookie( name ) {
	if ( document.cookie == '' ) { // there is no cookie, so go no further
		return false;
	} else { // there is a cookie
		var firstChar, lastChar;
		var theBigCookie = document.cookie;
		firstChar = theBigCookie.indexOf(name); // find the start of 'name'
		var NN2Hack = firstChar + name.length;
		
		if ( (firstChar != -1) && (theBigCookie.charAt(NN2Hack) == '=') ) { // if you found the cookie
			firstChar += name.length + 1; // skip 'name' and '='
			lastChar = theBigCookie.indexOf(';', firstChar); // Find the end of the value string (i.e. the next ';').
			
			if (lastChar == -1) lastChar = theBigCookie.length;
			
			return unescape( theBigCookie.substring(firstChar, lastChar) );
		} else { // If there was no cookie of that name, return false.
			return false;
		}
	}
}

function cnnad_getTld (hostname) {
	var data = hostname.split(".");
	if (data.length >= 2) {
		return (data[data.length-2] + "." + data[data.length-1]);
	}
	return(null);
}

function cnnad_refreshAds ()
{
	if (! cnnad_adIframes)
	{
		return;
	}

	for (var i = 0; i < cnnad_adIframes.length; i++)
	{
		var cnnad_id = cnnad_adIframes[i];
		if (document.getElementById(cnnad_id))
		{
			var elem = document.getElementById(cnnad_id);
			if (elem.width > 0 && elem.height > 0)
			{
				elem.contentWindow.location.href = cnnad_adIframeSrc[cnnad_id];
			}
		}
	}
}

function cnnad_getDEAdHeadCookie( imageRef ) {
	if (typeof(cnnad_readCookie) != "undefined") {
		cnnDEadDEonCookie = cnnad_readCookie( 'adDEon' );
	}
	var newSrc = "http://gdyn." + cnnad_getTld(location.hostname) + "/1.1/1.gif?" + new Date().getTime();
	if ( !alreadySwappedDETargetImage && !cnnDEadDEonCookie) {
		imageRef.src = newSrc;
		alreadySwappedDETargetImage = true;
	}
}

function cnnad_psuedoGetElementById(elm,d) {
	var p,i,x; if(!d) d=document; if((p=elm.indexOf("?"))>0&&parent.frames.length) {
		d=parent.frames[n.substring(p+1)].document; elm=elm.substring(0,p);
	}
	if(!(x=d[elm])&&d.all) x=d.all[elm]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][elm];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=document.getElementById(elm,d.layers[i].document);
	return x;
}
	
function cnnad_createChangableRefreshAd(key,url)
{
	// basically same thing as cnnad_setReefreshAdURL, but also ads iframe id to cnnad_Iframes colleciton.
	var cnnad_adFrameID = 'adframe' + key;
	var cnnad_adFrame = document.getElementById(cnnad_adFrameID);
	if (cnnad_adIframes)
	{
		cnnad_adIframes[cnnad_adIframes.length] = 'adframe' + key;
	}
	cnnad_setRefreshAdURL(key, url);
}

function cnnad_setRefreshAdURL(key, url)
{
	var cnnad_contID = 'ad' + key;
	var cnnad_adFrameID = 'adframe' + key;
	var cnnad_container = document.getElementById(cnnad_contID);
	var cnnad_adFrame = document.getElementById(cnnad_adFrameID);

	if (url == 'hidden') {
		cnnad_container.style.position = 'relative';
		cnnad_container.style.visibility = 'hidden';
		cnnad_adFrame.src = 'about:blank';
	} else {
		cnnad_container.style.position = 'relative';
		cnnad_container.style.visibility = 'visible';
		cnnad_adFrame.src = url + '&tile=' + cnnad_getDynamicTileID(url);
	}
}

function cnnad_getCoordinates(obj) {
	var point = { x: 0, y: 0 };
	while(obj) {
		point.x += obj.offsetLeft;
		point.y += obj.offsetTop;
		obj = obj.offsetParent;
	}
	return point;
}

function cnnad_whereami(anchorid) {
	var locarr = new Array();
	if(cnnad_NS4) {
		if (document.anchors[anchorid]){
			locarr[0] = document.anchors[anchorid].x;
			locarr[1] = document.anchors[anchorid].y;
		}
	}
	else if(cnnad_DOM) {
		var myanchor = document.getElementById(anchorid);
		var coordinates = cnnad_getCoordinates(myanchor)
		if (myanchor){
			locarr[0] = coordinates.x;
			locarr[1] = coordinates.y;
		}
	}
	else {
		var myanchor = cnnad_psuedoGetElementById(anchorid);
		var coordinates = cnnad_getCoordinates(myanchor)
		
		if(myanchor.offsetLeft&&myanchor.offsetTop){
			locarr[0] = coordinates.x;
			locarr[1] = coordinates.y;
		}
	}
	return locarr;
}

function cnnad_mTrack(mTrackName,mTrackMax,cName,cExpires) {
	// function for storing float ad views per user, one cookie for all ad spaces.
	if (arguments.length == 2) {var cName='mediaTrack';}
	var newExp = (cExpires) ? ';expires='+cExpires : '';

	var showAd=true;
	if (!cnnad_readCookie(cName)) {
		newCook=mTrackName +'|' +1;
		document.cookie=(cName +'='  + newCook +";domain=" +cnnDocDomain +";path=/" +newExp);
	}
	else if (cnnad_readCookie(cName)) {
		oldCook = cnnad_readCookie(cName);
		var thisAH = oldCook.indexOf(mTrackName);
		if (thisAH==-1) {
			newCook=oldCook +'|' +mTrackName +'|' +1;
			document.cookie=(cName +'=' + newCook +";domain=" +cnnDocDomain +";path=/" +newExp);
		}
		else {
			var splitCook = oldCook.split('|');
			var cookPlus; var plusOne;
			for (i=0; i < splitCook.length; i+=2 ) {
				plusOne = i+1;
				if (splitCook[i]==mTrackName) {
					cookPlus = parseInt(splitCook[plusOne])+1;
					splitCook[plusOne]=cookPlus;
					if (cookPlus > mTrackMax) showAd = false;
				}
			}
			newCook="";
			for (var j=0; j < splitCook.length-1; j+=2) {
				newCook += splitCook[j] + '|' +splitCook[j+1];
				if (j+2 < splitCook.length) {newCook += '|';}
			}
			document.cookie=(cName +'=' + newCook +";domain=" +cnnDocDomain +";path=/" +newExp );
		}
	}
	return showAd;
}

function cnnad_showActiveHeader (numViews, cName, swfFile, clickThrough, flashVersion, left, top) {
	// BEGIN variables
	var domain = ".pgatour.com";
	var ahY=0;
	left = (left ? left : 0);
	top  = (top ? top : 0);
	var hdrPosition = cnnad_whereami('hdr_anchor'); 
	ahY = parseInt(hdrPosition[1]);
	flashVersion = ( flashVersion ? flashVersion : 6 );
	var showHdr = cnnad_mTrack(cName,numViews);
	var writeMe = "";
	var cnnad_hasFlash = detectFlash();
	var cnnad_plugin = (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"]) ? navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin : 0;
	if (cnnad_plugin)
	{
		cnnad_plugin = parseInt(cnnad_plugin.description.substring(cnnad_plugin.description.indexOf(".")-1)) >= flashVersion;
	}
	else if ( navigator.userAgent && navigator.userAgent.indexOf("MSIE")>=0 
		&& (navigator.userAgent.indexOf("Windows 95")>=0 || navigator.userAgent.indexOf("Windows 98")>=0 || navigator.userAgent.indexOf("Windows NT")>=0)) {
		writeMe='<SCRIPT LANGUAGE=VBScript\> \n'
		+'on error resume next \n'
		+'cnnad_plugin = ( IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.' + flashVersion +'\")))\n'
		+'<\/SCRIPT\> \n';
		document.write(writeMe);
	}
//	if (IE && !MAC && cnnad_plugin && showHdr) {
	if (IE && !MAC && cnnad_hasFlash && showHdr) {
		//  top:' + (ahY+23)
		writeMe='<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'
		+' codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=' +flashVersion +',0,0,0\" '
		+' STYLE="position: absolute; left:' + left + '; top:' + top +';z-index:3;" '
		+' ID=act_header WIDTH=985 HEIGHT=100>'
		+' <PARAM NAME=movie VALUE=\"' + swfFile + '?clickTag=' + clickThrough + '\"><PARAM NAME=loop VALUE=false><PARAM NAME=menu VALUE=true><PARAM NAME=quality VALUE=autohigh><PARAM NAME=scale VALUE=exactfit><PARAM NAME=wmode VALUE=transparent><PARAM NAME=bgcolor VALUE=#FFFFFF> '
		+' </OBJECT>';
		document.write(writeMe);
	}
}

function detectFlash() {
	pluginFound = detectPlugin( 'Shockwave', 'Flash' );
	// if not found, try to detect with VisualBasic
	if ( !pluginFound && detectableWithVB ) {
		pluginFound = detectActiveXControl( 'ShockwaveFlash.ShockwaveFlash.1' );
	}
	return pluginFound;
}

function getShockwaveVersion() {
	// Set local variables to avoid crashing bug
	var thearray = navigator.plugins;
	var arraylength = thearray.length;
	for (i=0; i<arraylength; i++)
	{
		theplugin = thearray[i];
		// Retrieve the plugin
		thename   = theplugin.name;
		// Get the plugin name
		thedesc   = theplugin.description;
		// Get the plugin description
		// If the plugin is the Shockwave Player...
		if (thedesc.indexOf("Shockwave")!= -1 && thedesc.indexOf("Director") != -1)
		{ 
			// ...parse out the version...
			versionString = thedesc.substring(thedesc.indexOf("version ") + 8);
			// ...pet the major version...
			majorVersion = parseInt(versionString);
			// ...and return it.
			return majorVersion;
		}
	}
	// If we've went through the whole list of plugins without
	// finding Shockwave, we return zero.
	return 0;
}