Use JQuery fix RadioButton in GridView multi check problem

$('input[type="radio"]').click(function () {
                $.each($('input[type="radio"]'), function () { this.checked = false; });
                this.checked = true;
             });


 <asp:GridView ID="GridView1" >
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <asp:RadioButton ID="RadioButton1" runat="server" />
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:BoundField HeaderText="Employee #" DataField="empid" />
                    <asp:BoundField HeaderText="Last Name" DataField="lastname" />
                    <asp:BoundField HeaderText="First Name" DataField="firstname" />                             
                </Columns>               
   </asp:GridView>