function openWin(url, width, height) { 

                            windowName = "buttons";
                            params = "toolbar=0,";
                            params += "location=0,";
                            params += "directories=0,";
                            params += "status=0,";
                            params += "menubar=0,";
                            params += "scrollbars=1,";
                            params += "resizable=1,"; 

                            params += "width="+width+",";
                            params += "height="+height;

                            win = window.open(url, windowName, params);
                            win.opener.name = "opener";
                            }