Closing web form through a Web form button

Question

Hi, Using the following code I am opening javacript window. The form contain a web Form button control. By clicking on the button, basically it will store information to the database. After string the information, iwant to close the form. How can achieve this throgh this button. ----------------------------------------------------------------- --------------------------------------------------------------- &firstname= <%# DataBinder.Eval(Container.DataItem, "FirstName")%> &lastname= <%# DataBinder.Eval(Container.DataItem, "LastName")%> ')">