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    function query() {
            window.showModalDialog("Query/DeviceQuery.aspx",   window,   "dialogWidth:700px;dialogHeight:400px;status:no;help:no;scroll:no");
        }
    </script>
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 protected void btnOK_Click(object sender, EventArgs e)
    {
        string swhere = get_where().Replace("'", "\'");
        Session["where"] = get_where();
        string script = "window.returnValue='true'; window.dialogArguments.__doPostBack('btnquery', '');";
        this.ClientScript.RegisterStartupScript(this.GetType(), "MPExecCommand", script, true);
        script = "window.close();";
        Common.ResponseScript(this.Page, script);
    }
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{
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