Fire event in dynamically loaded gridview

<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false" CssClass="Grid"
            Width="500" OnRowCommand="gvCustomers_RowCommand">
    <Columns>
        <asp:BoundField DataField="ContactName" HeaderText="Customer Name" ItemStyle-CssClass="name"
            ItemStyle-Width="200" HeaderStyle-Width="200" />
        <asp:BoundField DataField="City" HeaderText="City" ItemStyle-CssClass="city" ItemStyle-Width="100"
            HeaderStyle-Width="100" />
        <asp:BoundField DataField="Country" HeaderText="Country" ItemStyle-CssClass="country"
            ItemStyle-Width="100" HeaderStyle-Width="100" />
        <asp:BoundField DataField="PostalCode" HeaderText="Postal Code" ItemStyle-CssClass="postal"
            ItemStyle-Width="100" HeaderStyle-Width="100" />
        <asp:TemplateField>
            <ItemTemplate>
                <asp:LinkButton ID="btn" runat="server" ClientIDMode="Static" CommandName="click"
                    CommandArgument='<%# Bind("ContactName") %>'>Click</asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>

protected void gvCustomers_RowCommand(Object sender, GridViewCommandEventArgs e)
{
    // If multiple buttons are used in a GridView control, use the
    // CommandName property to determine which button was clicked.
    if (e.CommandName == "click")
    {
        // Your codes...
    }
}

function OnSuccess(response) {
    var xmlDoc = $.parseXML(response.d);
    var xml = $(xmlDoc);
    pageCount = parseInt(xml.find("PageCount").eq(0).find("PageCount").text());
    var customers = xml.find("Customers");
    $("[id$=gvCustomers] .loader").remove();
    customers.each(function () {
        var customer = $(this);
        var row = $("[id$=gvCustomers] tr").eq(0).clone(true);
        $(".name", row).html(customer.find("ContactName").text());
        $(".city", row).html(customer.find("City").text());
        $(".postal", row).html(customer.find("PostalCode").text());
        $(".country", row).html(customer.find("Country").text());
        
        // Find the Last Row Number.
        var lastRowNumber = parseInt($("[id$=gvCustomers] tr").eq($("[id$=gvCustomers] tr").length - 1).index()) + 2;
        
        // Append this number inside href attribute of newly created row.
        $("#btn", row).attr("href", "javascript:__doPostBack('gvCustomers$ctl" + (lastRowNumber + 1) + "$btn','')");
        
        $("[id$=gvCustomers]").append(row);
    });

    //Hide Loader
    $("#loader").hide();
}