In the source at at https://www.jala-mi.org/httpsdocs/cgi-bin/manage_users.cgi?action=GetLoginForm there is a line:

<input type="button" value="Login" id="submit" style="background-color
+:#0D4A80; color:#fff"; onclick="validate()"/>
[download]

but i cannot find a validate subroutine and my firefox console shows "ReferenceError: validate is not defined". This is not an error in the perl, but of the html/javascript. When you press the login button the browser does does not send anything back to the server to process but instead raises the error condition in the console.