after submitting post form open new window arrangement result

shows quarrel form emanate around post javascript. next run-down code.

var form = document.createelement("form");

form.setattribute("method", "post");
form.setattribute("action", "test.jsp");

var hiddenfield = document.createelement("input");  

hiddenfield.setattribute("name", "id");
hiddenfield.setattribute("value", "bob");
form.appendchild(hiddenfield);
document.body.appendchild(form); // wholly certain required          
form.submit();

what i open law new window. i am now controlling something open page new window:

onclick = window.open(test.html, '', 'scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,status=no');