function readCookie(inName)
{
    var theNameWithEquals = inName + "=";
    var theCookieArray = document.cookie.split(';');
    for (var i = 0; i < theCookieArray.length; i++)
    {
        var c = theCookieArray[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(theNameWithEquals) == 0) return c.substring(theNameWithEquals.length, c.length);
    }
    return "";
}

function randomString(inStringLength, inSource)
{
	var theText = "";
	for (var i = 0; i < inStringLength; i++)
    {
		var thePosition = Math.floor(Math.random() * inSource.length);
		theText += inSource.substring(thePosition, thePosition + 1);
	}
	return theText;
}

// This is a pretty horrible hack for JIRA task CROP-675
function x04kill()
{
	var theBugs = getElementsByClassName("bug","div");
	if (theBugs)
	{
		if (theBugs.length > 0)
		{
			var theBug = theBugs[0];
			var theImgs = theBug.getElementsByTagName("img");
			if (theImgs)
			{
				if (theImgs.length > 0)
				{
					var theImg = theImgs[0];
					var theSrc = theImg.getAttribute("src");
					if (theSrc.indexOf("cro_cr_plus_full_badge.gif") != -1)
					{
						var theAd = document.getElementById("x04");
						if (theAd)
						{
							theAd.parentNode.removeChild(theAd);
						}
                        var theAdContainers = getElementsByClassName("bottompremium","dd");
                        if (theAdContainers)
                        {
                            if (theAdContainers.length > 0)
                            {
                                var theAdContainer = theAdContainers[0];
                                if (theAdContainer)
                                {
                                    theAdContainer.innerHTML = "<div style='background: transparent url(/cro/resources/content/cars/images/cars-premium/cro_cr_plus_org_slug.gif) no-repeat scroll right bottom; padding-left: 7px; padding-top: 2px; padding-bottom: 0px; margin-bottom: 2px; margin-right: 3px;'>Get unlimited new and used car price reports.<br/><span style='font-weight: normal;'>Choose car above.</span></div>";
                                }
                            }
                        }
					}
				}
			}
		}
	}
}

function renderAds()
{
	x04kill();
    var theRandomOverride = randomString(9, "0123456789");
    var theDivList = getElementsByClassName("adtag", "div");
    var thePositionList = "";
    if(theDivList.length > 0)
    {
        thePositionList = theDivList[0].getAttribute("id");
        for (var x = 1; x < theDivList.length; x++)
        {
            thePositionList += "," + theDivList[x].getAttribute("id");
        }
    }
    for (var x = 0; x < theDivList.length; x++)
    {
        var theAd = document.createElement("iframe");
        theAd.setAttribute("width", theDivList[x].getAttribute("width"));
        theAd.setAttribute("height", theDivList[x].getAttribute("height"));
        if (theDivList[x].getAttribute("passthrustyle"))
        {
            if (typeof(theAd.style.cssText) == 'string')
            {
                theAd.style.cssText = theDivList[x].getAttribute("passthrustyle");
            }
            theAd.setAttribute("style", theDivList[x].getAttribute("passthrustyle"));
        }
        if (theDivList[x].getAttribute("passthruclass"))
        {
            theAd.className = theDivList[x].getAttribute("passthruclass");
            theAd.setAttribute("class", theDivList[x].getAttribute("passthruclass"));
        }
        theAd.setAttribute("scrolling", "no");
        var theBrowser = navigator.appName;
        if(theBrowser == "Microsoft Internet Explorer"){
            theAd.frameBorder = theAd.marginWidth = theAd.marginHeight = 0;
        } else {
            theAd.setAttribute("frameborder", "0");
            theAd.setAttribute("marginwidth", "0");
            theAd.setAttribute("marginheight", "0");
        }
        theAd.setAttribute("id", theDivList[x].getAttribute("id"));
        theAd.setAttribute("name", theDivList[x].getAttribute("id"));
        var theSrc = "http://oascentral.consumerreports.org/RealMedia/ads/adstream_sx.ads/" + theDivList[x].getAttribute("path") +
            "/1" + theRandomOverride + "@" + thePositionList + "!" + theDivList[x].getAttribute("id") + "?" +
            readCookie("userAds") + "article=112345&XE&status=active" + OAS_rdl + "&if_nt_CookieAccept=" + OAS_CA + "&XE";
        // OAS_rdl and OAS_CA are set by https://oascentral.consumerreports.org/Scripts/oas_analytics.js
        theAd.setAttribute("src", theSrc);
        theDivList[x].parentNode.insertBefore(theAd, theDivList[x]);
        theDivList[x].parentNode.removeChild(theDivList[x]);
    }
}

/*
	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);
};