link_to and firefox

I ve got the following in my code:
link_to "Prev Month" , {:controller => "rind_kalender", :action =>
"index", :planday => h(@plan_day << 1)} , :class => "prevMonth"

controller and action are my default controller and action in
routes.rb

The generated html code for the link looks like:
<a class="prefMonth" href="/?planday=15.12.2007">Prev Month</a>

Unfortunetly, Firefox (2.0.0.11) does not allow me to click on that
link.
The link is working in IE 7.

Has anybody similar experiences?
Is there anything wrong with my link_to statement?

<a class="prefMonth" href="/?planday=15.12.2007">Prev Month</a>

Unfortunetly, Firefox (2.0.0.11) does not allow me to click on that
link.
The link is working in IE 7.

Has anybody similar experiences?
Is there anything wrong with my link_to statement?

there shouldn't be any connection to the ruby u wrote.
if it generated html (which, as u posted, it did) the problem lies in
other issues such as css / other browser compatabilities annoyances -

(general advice - download firebug addon for firefox, makes life
amazingly better)

check to see if there isn't some z-index issue (css) that has a layer
above the link which blocks it / etc . the answer lies within

good luck
s

check to see if there isn't some z-index issue (css) that has a layer
above the link which blocks it / etc . the answer lies within

Unfortunelty, I ve still got no solution. css throws no errors. no js
errors.
I m not using z-index on my page. I ve set a z-index for my links but
still... they are not reacting to my mouse clicks.

IE 7.0 is working....

Any further ideas?

Thanks a lot in advance.