how to check the checkbox is checked or not in jquery.

how to check the checkbox is checked or not in jquery.


how to check the checkbox is checked or not in jquery. I am really new to jquery. thank you for the help

CODE

<asp:CheckBox ID="ckChangeAddress" runat="server" Text="Change Of Address"  />
            <br />
<asp:CheckBox ID="ckAdditionalAddress" runat="server"     Text="Additional Address" />
            <br />
<asp:CheckBox ID="ckNewPhone" runat="server" Text="New Telephone Number"  >