Submit tag fires when page first displays

[HT Levine <ht...@ebates.com>]

I am using version 0.5 of Struts (release version)   I have a login form
taken from the example.  I notice that when logon.jsp draws itself, the
'submit' button logic fires, as if the user clicked the submit button.
Where would I look, read, etc to figure out how to make it only fire the
action I have it hooked to when the user clicks the button? 

thanks!