How to edit a JavaScript ALERT box title

Hi,

I'm generating a JavaScript alert with following code in C# .NET page:

 page.ClientScript.RegisterStartupScript(frmPage.GetType(),
 "ShowMessage", string.Format("<script type='text/javascript'>alert('{0}')</script>",Message));

It displays an alert box with the heading title as "Message from webpage".I want to display our client name here.

Is it possible to modify the title?