Unable to get value in page load asp.net when value set by jquey.

i am working i a business application.where i load data in grid view on page load. i have to set
search criteria from client set.when i set value in control then it display in html.but this value not
change in page load.
my client side code is
<script type="text/javascript">
$(document).ready(function () {
$("hfServerValue").val("From ClientSide!");
my server side code is //
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Response.Write(" & hfServerValue.Value & )
End Sub