var ccpop_window = null;
  function ccpop(status,url) {
     if(status != 0) {
        if(ccpop != null) ccpop.focus(); 
        else { 
           var ccpop = open(url, "ccpop", "WIDTH=310,HEIGHT=450");
           ccpop_window = ccpop;
        }
     } else {
        if(ccpop_window != null) ccpop_window.close();
     }
  }