I am trying to implement JQuery in my web page but i am not been able to implement it successfully.

I have a master page

where i added one script for menu bar that is already using jquery hosted by Google

This is coded in master page itself

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
<script type="text/javascript">

<script type="text/javascript">

  $(document).ready(function(){  
   $('#ddmenu > li').bind('mouseover', ddmenu_open)
      $('#ddmenu > li').bind('mouseout',  ddmenu_timer)
  });

  document.onclick = ddmenu_close;
 // ]]>  
 </script>

Now i want to implement a Jquery to set the css visibility property to true or false. into my content page of same master page.

    <script type="text/javascript">
            $(document).ready(function(){  
                $("#lnkAddMore").click(function(){
                 alert();
                  }
                  );
            });
        </script>

This html control is under my UpdatePanel. I dont know why it is not working ? I am using this control under UpdatePanel.

<input type="button" id="lnkAddMore" value="Add More" />

I tried to use it outside my update panel it is running successfully but not in UpdatePanel

I think there is a problem using it with an UpdatePanel