I have written following code to popup a new page when my list new form save button is clicked.
$(document).ready(function() {
        $('input[value=Save]').click(function() {
                var Width = 1050;
                var Height = 550;
                var left = (screen.width - Width) / 2;
                var top = (screen.height - Height) / 4;
                var myWindow = window.open("someurl");
        });
    });
But my expectations are as follows:
- Until I enter values in popup window and submit/close the popup, my parent form should not be submitted.
 - I should be able to submit the parent list form once I submit/close the popup window(not before that).
 
I have done some research on internet, but couldn't find a way. Appreciate your help.