//popups
var popupWindow = null;

function openPopupWindow(url) {
  closePopupWindow();
  var screenHeight = window.screen.availHeight;
  var screenWidth = window.screen.availWidth;
  var windowHeight = 700;
  var windowWidth = 850;
  var top = (screenHeight - windowHeight) / 2;
  var left = (screenWidth - windowWidth) / 2;
  popupWindow =
    window.open(
      url,
      "",
      "resizable=yes, scrollbars=yes, width=" + windowWidth + ", height=" + windowHeight + ", top=" + top + ", left=" + left);
}

function openPopupWindowSmall(url) {
  closePopupWindow();
  var screenHeight = window.screen.availHeight;
  var screenWidth = window.screen.availWidth;
  var windowHeight = 220;
  var windowWidth = 750;
  var top = (screenHeight - windowHeight) / 2;
  var left = (screenWidth - windowWidth) / 2;
  popupWindow =
    window.open(
      url,
      "",
      "resizable=no, scrollbars=no, width=" + windowWidth + ", height=" + windowHeight + ", top=" + top + ", left=" + left);
}

function openPopupWindowMini(url) {
  closePopupWindow();
  var screenHeight = window.screen.availHeight;
  var screenWidth = window.screen.availWidth;
  var windowHeight = 300;
  var windowWidth = 400;
  var top = (screenHeight - windowHeight) / 2;
  var left = (screenWidth - windowWidth) / 2;
  popupWindow =
    window.open(
      url,
      "",
      "resizable=no, scrollbars=no, width=" + windowWidth + ", height=" + windowHeight + ", top=" + top + ", left=" + left);
}



function closePopupWindow() {
  if (popupWindow && !popupWindow.closed) {
    popupWindow.close();
    popupWindow = null;
  }
}