How to call two javascript function on a single button click

Hi all,
Here, I will show how to call two javascript function in a single button click.
First, we have a button.

<asp:Button ID="btnSubmit" runat="server" Text="Submit" onclientclick="showlabel();showdate();" />

In "onclientclick" we are calling two javascript functions. Heres, the script:-

<script type="text/javascript">
        function showlabel()
        {
            alert("this is show label function");            
        }

        function showdate() {
            var dt = new Date();
            alert(dt);
        }
    </script>

Thanks and Regards
Akiii