var nWin = "";
var chk = "";
var wndch = "";

function newwindow(no) {

  checkwin();
  
  if (no == 1){
    nWin = window.open("popupmap.html","");
    nWin.focus();
  }
}

function checkwin(){
  wndch = nWin.closed;
}

function colwin(){
  nWin.close();
}