function newUrl(url,name,args) {
    if(name==null) name="";
    if(args==null) args="";
    var win=window.open(url,name,args);
    if(!win) {
        alert("Unable to open a new window due to a popup blocker.");
    } else {
        win.focus();
    }
    return win;
}

function popup(url,w,h) {
    window.open(url,'','toolbar=0,location=0,scrollbars=0,directories=0,status=0,menubar=0,resizable=1,width=' + w + ',height=' + h);
}