FreeSMS gadget updated

CheckForUpdate.js

///////////////////////////////////////////////////////////////
//
// Function checking if there is a new version available.
//
///////////////////////////////////////////////////////////////
function isUpdateAvailable()
{
    //Show progress
    imgProgress.style.visibility = "visible";    
    
    //Url with version information.
    var url = "http://static.follesoe.no/gadgets/gratissms/versioninfo.xml";

    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = function() 
    {
        // Makes sure the document is ready to parse.
        if (xmlHttp.readyState === 4) 
        {  
            //Hide progress.
            imgProgress.style.visibility = "hidden";
            
            // Makes sure it found the file.
            if (xmlHttp.status === 200) 
            {  
                var currentVersion = System.Gadget.version;
                var newVersion = xmlHttp.responseXML.getElementsByTagName("version")[0].firstChild.nodeValue;
                var updateUrl = xmlHttp.responseXML.getElementsByTagName("url")[0].firstChild.nodeValue;
                var comment = xmlHttp.responseXML.getElementsByTagName("comment")[0].firstChild.nodeValue;
                
                //Remove dots from the version number and convert it to int.
                var nNew = parseInt(removeDots(newVersion));
                var nCur = parseInt(removeDots(currentVersion));
                
                if(nNew > nCur)
                {
                    showErrorDiv(true);
                    hrefUpdate.href = updateUrl;
                    imgError.src = "images/newversion.png";
                    imgError.alt = "Last ned ny versjon (" + newVersion + ")\n" + comment;
                }
                else
                {
                    checkSettings();
                }
            }
            else
            {
                showErrorDiv(true);
                hrefUpdate.onclick = test;
                hrefUpdate.href = "";
                imgError.src = "images/largewarning.png";
                imgError.alt= "Fikk ikke kontakt med oppdateringsserver.\nSjekk internett oppkoblingen din.\nKlikk på ikonet for å ignorere feilmeldingen.";                
            }
        }
    }
    xmlHttp.send(null);
}