function demo(x){
var winStyle = "top=10,left=50,width=730,height=620,status=0,directories=0,location=0,toolbar=0,menubar=1,scrollbars=1,resizable=1"
if (false) window.close(); if (!window.displayWin || displayWin.closed){
 displayWin = open(x,"",winStyle); }
 else{ displayWin.close();  displayWin = open(x,"",winStyle); }}