jQuery in an ASP.net MVC application using Master Pages

I am trying to get simple jQuery to execute on my Content page with no luck below is what I am trying to do:

<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">

   <script src="../../Scripts/jquery-1.2.6.js" type="text/javascript"></script>
   <script type="text/javascript">

       $(document).ready(function() {
           alert("hi");
       });   
   </script>

</asp:Content>

I have also tried getting the following to work:

<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">

   <script src="../../Scripts/jquery-1.2.6.js" type="text/javascript"></script>
   <script type="text/javascript">
       function onload()
       {
          $("#myDiv").css("border", "1px solid green");
       }
   </script>

   <div id="myDive">
      Hello
   </div>

</asp:Content>