Confirmation Message Not Shown

Hi,
I am doing a website in SF 5.  I have a contact form which on submit sends an email.
In the form if I add menu control, the confirmation message is not being shown. If the page contains only the form control, then on submitting the confirmation message is shown. 
This is the relevant code.
<div id="RightSideContainer">
<div id="BreadCrumbDiv">
<div id="BreadCrumb_C002" class="sfFormsEditor sfRightLbls sfFormsEditor sfRightLbls ">
<div id="BreadCrumb_C002_ctl00_ctl00_successMessage" class="sfSuccess" style=""> Success! Thanks for filling out our form! </div>
</div>
</div>

In the firebug, the element style is
element.style
    display: none;

When I cancel this in firebug, the message is shown. What is going wrong. Please help.
Is there any way to edit the html?

Thanks,
Surya.