openToky.js

window.openToky = function openToky(number) {
  const title = 'Toky';
  const w=300;
  const h=500;
  const _options = 'scrollbars=no,resizable=no';
  const url = 'https://app.toky.co/business/dialer#?call='+number;
  // Fixes dual-screen position Most browsers Firefox
  const dualScreenLeft = window.scareenLeft != undefined ? window.screenLeft : screen.left;
  const dualScreenTop = window.screenTop != undefined ? window.screenTop : screen.top;
  const width = window.innerWidth ? window.innerWidth : document.documentElement.clientWidth ? document.documentElement.clientWidth : screen.width;
  const height = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight ? document.documentElement.clientHeight : screen.height;

  const _left = ((width / 2) - (w / 2)) + dualScreenLeft;
  const _top = ((height / 2) - (h / 2)) + dualScreenTop;
  const newWindow = window.open(url, title, _options +', width=' + w + ', height=' + h + ', top=' + _top + ', left=' + _left);

  // Puts focus on the newWindow
  if (window.focus) newWindow.focus();
}