I have a user control that contains a treecontrol

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C#

and used this usercontrol whereever i required this and it is opened by clicking on button but Whenever i press enter key on my page in textbox this user control automatically opens .how to display none on any of the user control I have also written javascript to handle this but it doesnot work

<script type="text/javascript">
    $(document).keydown(function (event) {
        if (event.keyCode == 13) {
            document.getElementById("<%=tvFilterLocation.ClientID %>").style.Display = "none";
            // return false;
        }

    });