function openChatWindow(USER, UID) 
{
   var URL = "/php/special-chat.php?H=500&USER=" + USER + "&UID=" + UID ;
   var windowName = "chatWindow_" + UID
   var chatwin = window.open(URL, windowName, 'toolbar=0,location=0,directories=0,menubar=0,status=1,scrollbars=1,resizable=1,width=616,height=508,top=0,left=0');
}