Javascript/JQuery: focus the popup window if already opened but not to reload it

Question

Have the following code to open and focus the window popup, unless it hasn't opened yet. It works fine,

But the problem is after focus to the previous opened popup window, can't prevent reloading it and it makes loss of the data on it.

So how can prevent the existing window not to reload to retain the existing data when the link is clicked again?

window.open(url,"searchPatron","height=600,width=1000, status=yes,toolbar=no,menubar=no,location=no").focus();

Answer 1

Maybe it fits your needs:

DEMO

window['windows'] = {};
var url = "//testit.com";
$('button').click(function () {
    var popup =  window['windows'][url]? window['windows'][url]:
    window['windows'][url] = window.open(url, "searchPatron", "height=600,width=1000, status=yes,toolbar=no,menubar=no,location=no");
    popup.focus();
});