function callRssThemeActus () {
    var sVirgule = "";
    var sListTopics = "";
    try {
        var oList = document.getElementById("listTopics");
        var cInputs = oList.getElementsByTagName("input");
        for(i = 0; i < cInputs.length; i++) {
            var oInput = cInputs[i];
            if (oInput.name 
            && /^input/.test(oInput.name)
            && oInput.checked ) {
                sListTopics = sListTopics + sVirgule + oInput.value;
                sVirgule = ",";
           }
        }
        document.location.href = "rssThemeActus.xml?list=" + sListTopics;
    }
    catch(e) {
        alert(e.message);
    }
}