Edit: The basic question is the code below opens a popup window when the parent screen isn’t maximised. When the parent screen is maximised only a new tab is opened. I would like it to behave like a popup window only. Thanks. I’m running the code against Safari and Google Chrome.
An extract of the code is shown below (the part I am having the issue with):
<form target="popUp" name="RngFrm" action="MapPHPCode3.php" method="post" onsubmit="popup(this);">
<input name="lat" placeholder="Latitude" value="Latitude"></input>
<input name="lng" placeholder="Longitude" value="Longitude"></input>
<input name="rad2" placeholder="Radius" value="Radius"></input>
<input type="submit">
</form>
<script>
function popup(form) {
window.open('', 'formpopup','menubar=yes,scrollbars=yes,resizable=yes,width=40,height=50');
form.target = 'formpopup';
};
</script>