JQuery is not running

I am using master page and content page. In content page I am using following jquery code

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
    <script type="text/javascript" src="jquery-1.4.1.js"></script>
    <script type="text/javascript">
        $("document").ready(function() {
          var y = $("#<%hid.ClientID%>").val();
        });
    </script>
</asp:Content>

<input type="hidden" id="hid" runat="server" />

When I run this code I am getting this error

Compiler Error Messa开发者_开发知识库ge: CS1002: ; expected

Line 167:  @__w.Write("\").val();\r\n      });\r\n  </script>\r\n\r\n\r\n");

Any solution ?

It is an ASP.NET compiler error message. You're missing an = from your output tag. It should be:

<%=hid.ClientID%>

Not sure if this is your problem, but document does not have to be in quotes

$(document).ready(function() {

You could simply call

$(function() {
    var y = $("#hid").val();
});

if your input has a static id.

You should verify your resulting HTML / JavaScript code and see what <%hid.ClientID%> outputs.

This is an ASP.NET parsing error. The problem lies in the following line:

  $("#<%hid.ClientID%>").val();

You see, the <%= %>, not <% %>. So, it should look like this:

$("#<%= hid.ClientID %>").val();

Right code is

var y = $('#<%=hid.ClientID%>').val();

# Tells jquery that find a control with given ID and <%=hid.ClientID%> gives the exact ID. Only <%=hid.ClientID%> this will not work. '#<%=hid.ClientID%>' is the right code.