var xmlHttp;
try {
    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
    try {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (e1) {
        xmlHttp = new XMLHttpRequest();
    }
}
function addLog(sid, type, artid) {
    var url = "/portlet-test/portlet_action/addLog?schid=" + sid + "&actid=" + type + "&artid=" + artid;
    try {
        xmlHttp.open("GET", url, true);
    } catch (e1) {
        return;
    }
    // Send the request
    xmlHttp.send(null);
}