function windowOpener(url, name, args) {
if (typeof(popupWin) != "object"){
popupWin = window.open(url,name,args);
} else {
if (!popupWin.closed){ 
popupWin.location.href = url;
} else {
popupWin = window.open(url, name,args);
}
}
popupWin.focus();
}