html - Open popup in a new window by clicking a button in Javascript Alert -

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i'm using code:

  <script type="text/javascript"> window.alert("click ok if on 18"); window.open(   '.html',    '_blank' // <- makes open in new window. ); </script>

i need add code open popup in new window:

<script type='text/javascript' src='address popup'></script>

if add in way:

<script type="text/javascript"> window.alert("click ok if on 18"); window.open(   'address popup',    '_blank' // <- makes open in new window. ); </script>

it doesn't open expected. see text. maybe it's because did not use src:. can do?

the first parameter of window.open() needs url of page want open in popup.

rather using alert, sounds should use confirm. alert doesn't allow user aren't 18; if close alert instead of hitting "ok", it'll still continue open pop-up. confirm() gives them "ok" button , "cancel" button, can choose.

so altogether, here's code might like:

<script type="text/javascript"> var iseighteen = window.confirm("click ok if on 18"); if (iseighteen) { // if clicked "ok"     window.open(       'http://example.com/popup-is18.html',        '_blank'     ); } else { // if clicked "cancel"     window.open(       'http://example.com/popup-not18.html',        '_blank'     ); } </script>

it looks trying include javascript file. if did that, you'd want put inside of script tag above file, some_name_you_can_make_up.js, , this:

<script type="text/javascript" src="http://example.com/some_name_you_can_make_up.js"></script>

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