Having problem in retrieveing values from pop-up window to main window

[aruna_k_2006]

This is my main window

<%

String StudentID=request.getParameter("id2");

System.out.println(StudentID);


%>


 | Student ID    > src="images/search.gif" border=0>








this is my pop up window code


&id2=onclick=window_close() >

but when the window is closed the value is not retrieved in main window ..can any one help me up
i am getting value in system.out.println();
but not in text box(input box)

[hidash_in]

<%=request.getParameter("txttest")%>

[peter_budo]

Mixing Java and JavaScript what a bad idea...