Pass data from pop-up to parent

Here is a line of code I used to pass a value from a pop-up to the
parent:

string name = "Test";
Page.ClientScript.RegisterStartupScript(this.GetType(), "name", "<script
language=javascript>window.opener.document.getElementById('tbxname').inn
erText = '" + name + "';self.close();</script>");

Enjoy.