Problems with special SUBMIT-Button

Webpage test is a powerful tool. I want to test the speed of a browser game. I enter the credentials, but I can not press the button with a script.

I can make the login information to the public. It’s just a test account.
http://koeln:pennergame.de
user: schlagbaum
password: grenze07

The source code of the section is:
[font=Courier]

Spieler: Passwort:
[color=#FF0000][/color] Passwort vergessen
[/font]

My script is this
[font=Courier]//This works fine
navigate koeln.pennergame.de
setValue name’username eenemeene
setValue name’password abzaehl07
// problems from now on
//submitForm name’submitForm
clickAndWait innerText=Login
navigate koeln.pennergame.de/stock/plunder/[/font]

I need your help. Thanks in advance