var arrExperts = ["19061347","19063467","19063704","19063622","19063475","19063481","19062921","19063554","19063520","19061430","19063486","19063492","19061595","19063496","19061571","19063516","19060950","19061593","19062825","19060952","19063506","19062439","19063512","19065368","19066567","19061883"];
function isExpert(kickappsUserID)
{
    return (Array.contains(arrExperts, kickappsUserID));
}
function getTextChunk(text, maxlength, adjustLength)
{
    if (text.length <= maxlength)
        return text;
    else
    {
        if (Sys.Browser.agent == Sys.Browser.InternetExplorer)
        {
            var retText = "";
            var subText = text.substring(0, maxlength);
            var regex = /(.+)\b.+/gi;
            var match = regex.exec(subText);
            try
            {
                if (typeof (match) == "undefined" || match == null)
                {
                    retText = subText;
                }
                else if (typeof (match[1]) != "undefined" && match[1] != null)
                {
                    retText = match[1];
                }
            }
            catch (e)
            {
                return subText += "&#8230;";
            }
            return retText += "&#8230;"; // append ellipsis
        }
        else
        {
            var maxlength = maxlength;
            if (adjustLength) maxlength -= 13;
            return text.substring(0, maxlength) + "&#8230;"; // adjust for firefox
        }
    }
}
function resolveElement(element)
{
    var isSafari = (Sys.Browser.agent == Sys.Browser.Safari);
    var returnElement = "";
    switch (element)
    {
        case "uploadedByUrl":
            returnElement = (!isSafari ? "ka:uploadedByUrl" : "uploadedByUrl");
            break;
        case "uploadedByThumbnail":
            returnElement = (!isSafari ? "ka:uploadedByThumbnail" : "uploadedByThumbnail");
            break;
        case "creator":
            returnElement = (!isSafari ? "dc:creator" : "creator");
            break;
        case "creatorId":
            returnElement = (!isSafari ? "ka:creatorId" : "creatorId");
            break;
        case "encoded":
            returnElement = (!isSafari ? "content:encoded" : "encoded");
            break;
        case "content":
            returnElement = (!isSafari ? "media:content" : "content");
            break;
        case "thumbnail":
            returnElement = (!isSafari ? "media:thumbnail" : "thumbnail");
            break;   
        case "groupMembers":
            returnElement = (!isSafari ? "ka:groupMembers" : "groupMembers");
            break;   
    }
    return returnElement;
}
function getNodeValue(node, elementName)
{
    return node.getElementsByTagName(elementName)[0].childNodes[0].nodeValue;
}