Javascript in Page (with MasterPage)

hi,
    i have asked this question before but i couldnt understand how to implement javascript in page which is inculed with Master Page???
example.
 My Page is
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="multiupload.aspx.cs" Inherits="multiupload" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript" language="javascript">          & ...