pop up a window and auto submit

Hi.
I am using ASP to create a web application. let say i have main.asp and child.asp. i use 'function OpenWindow' as follow to pop-up child.asp from main.asp.

//put in main.asp
function OpenWindow(){

window.open("child.asp","A","width=500,height=600,status=no,resizable=yes,top=200,left=200");
}

And in child.asp, i have function 'assignValue' to past in some value to main.asp (it work fine). my question is how do i submit the main.asp when child is close. If i use window.opener.location.reload(true); It is not submit, that mean i canot use 'request.form' to get the component value. am i right??

function assignValue(){
     // enter some value....

     window.opener.location.reload(true);
//      window.opener.location.submit;    
     window.close();

}