How to use ASPxHiddenField values using Javascript

In this post i am going to Explain how to use ASPXHiddenField , and how to get HiddenField values using Javascript.
1.First we need to drag and drop  ASPxHiddenField in source code. like that

<div>
<dx:ASPxHiddenField ID="ASPxHiddenField" ClientInstanceName="cliHidden" runat="server"></dx:ASPxHiddenField>

</div>

2. After that assign value to ASPXHiddenField control  which values you want to assign.

in .CS code

 ASPxHiddenField["cliHidden"] = txtEmployeeID.tex;

3.in Javascript we need to write this code..

<script type="text/javascript">
        function RedirectToEntryScreen() {
       var sFilter = cliHidden.Get('cliHidden');//here we get hiddinfile values
            if (sFilter != "0=1")
                location.href = '/Modules/HRM/ATD/ATD_ShiftAssignmentsEntry.aspx';
            else if (sFilter == "0=1") {
                alert("Employee does not exist for the user");
                hide();
            }
        }
        function hide()
        { setInterval(function () { ParentLoadingPnl.Hide(); }, 1); }
    </script>

Note: if it will not work  for you then you need to add  this JQuery Library (jquery-1.7.1.min) .