Use of window.showModalDialog() is deprecated. Use window.open() instead. For more help https://developer.mozilla.org/en-US/docs/Web/API/Window.open
Ang paggamit sa window.showModalDialog() ay deprecated na. Sa halip, gamitin ang window.open(). Para sa karagdagang tulong https://developer.mozilla.org/en-US/docs/Web/API/Window.open