Question

When I submit my form, a window to another URL pops up. If I close the popup and resubit the form, the window opens in a new tab until I reload the page. How can I make the window open in a popup every time, without reloading the page?

<form action="http://stackoverflow.com/" method="post" enctype="multipart/form-data" name="imgform" onsubmit="process(); return false;">
    // FORM PARAMS
    <input type="submit" name="submit" value="Submit" />
</form>

Javascript function:

process = function(){
    popWindow = window.open('','popup','width=800,height=600,resizable=yes');
    document.imgform.setAttribute('target','popup');
    document.imgform.setAttribute('onsubmit','');
    document.imgform.submit();
};

Answer 1

delete document.imgform.setAttribute('onsubmit','');