[TYPO3-mvc] No Submit in Form

[Sebastian Felix Schwarz]

Hi list, 

i create some forms ... (multistepform) 
the most of them are working fine ... but there is one thing ... i cant understand ... 

i included a form (same way i did it before) but, clicking the submit button ... nothing happen ... no request ... no action is called ... nothing! 

here is my fluid code .. but i think ... theres nothing wrong... 

<f:form method="post" action="showstep3" controller="DomainPackage"  name="newDomainPackage2" id="newDomainPackage2" object="{newDomainPackage2}">
// FORMFIELDS GO HERE
<div class="navigator_buttons">
        	<button class="back" onclick="javascript:history.back()"><f:translate key="btn.back" /></button>
        	<f:form.submit class="forward" value="{f:translate(key: 'btn.fwd')}" id="button_input" />
        </div>
        <div class="clearer"></div>
</f:form>

i also implemented a mini-form to check the request .... but nothing happens:

<f:form >
// FORMFIELDS GO HERE
<div class="navigator_buttons">
        	<button class="back" onclick="javascript:history.back()"><f:translate key="btn.back" /></button>
        	<f:form.submit class="forward" value="{f:translate(key: 'btn.fwd')}" id="button_input" />
        </div>
        <div class="clearer"></div>
</f:form>

i also try to call an other action ... to get an error ... 

<f:form method="post" action="blabla" >
// FORMFIELDS GO HERE
<div class="navigator_buttons">
        	<button class="back" onclick="javascript:history.back()"><f:translate key="btn.back" /></button>
        	<f:form.submit class="forward" value="{f:translate(key: 'btn.fwd')}" id="button_input" />
        </div>
        <div 

but nothing happend .....

i cleared all caches .... (more than once) ... 

has anybody an idea ?

greets sebastian