Jquery in the Master - Content and user control.

Jquery in the Master - Content and user control.

Hi,
 
I am trying to use jquery in the Master Content page which doesn't work for me.I am narrating a my specific issue. So here it is...
 
I have a Master Page:AdminMaster.master
I have Content Page:NewSession.aspx
I have a User Control: SessionControl.ascx
I have a another User Control : SessionRestriction.ascx
 
I am useing SessionControl.ascx in my NewSession.aspx  page. And  SessionRestriction.ascx is used within the  SessionControl.ascx. And when I should click A button on SessionControl.ascx only then SessionRestriction.ascx should appear.
I have pasted SessionRestriction.ascx within the div tag and making it disappear and click of button should make it appear. pasting some code here...
 
Master Page
<
head runat ="server">
< script src ="~/JQuery/jquery-1.4.2.min.js") type ="text/javascript"></ script >
</head>
 
Content Page
<
asp:Content ID="Content1" ContentPlaceHolderID="MasterContent" Runat="Server">
< script src ="../JQuery/jquery-1.4.2.min.js" type ="text/javascript"></ script >
< script type ="text/javascript">
$(document).ready( function () {
$( '#ViewSessionRestriction' ).hide();
$( 'Button#btnAddSessionRestriction' ).click( function ()
{
alert( 'Before Show Calling' );
$( '#ViewSessionRestriction' ).show();
});
});
</ script >

< uc2 : SessionControl ID ="NewSessionControl" runat ="server" />//SessionControl.ascx
</ asp : Content >
 
And SessionRestriction.ascx is already within the SessionControl.ascx