I try like below but not get the editor. i put my code. 
 
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 <script type = "text/javascript">
     $(document).ready(function () {
         $("[id*=Button1]").live("click", function () {
             var editor = $('input[id$=MainContent_Editor1]').control;
             var content = editor.get_content();
             $('#MainContent_Literal1').Text = content;
         });
     });
 
   </script>
 
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
    </asp:ToolkitScriptManager>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
    <cc1:Editor ID="Editor1" runat="server" />
    <asp:Button ID="Button1" runat="server" Text="Button" />
     <asp:Literal ID="Literal1" runat="server"></asp:Literal>
    </ContentTemplate>
    </asp:UpdatePanel>
Sir to get editor i try like below
var editor = $('input[id$=MainContent_Editor1]').control;
here MainContent_Editor1 is id which we get at source when use master page.
again, i try like below.
   $('#MainContent_Editor1').control;
That also not work. plz help me.