Show X if category Show X if this category ? ? ? Wordpress ? ? ?

Hi i would like to add some thing for each specific category in one of my wordpress themes.

I have been having troubles getting this to work because i dont quite know else if codes and just copying from my sidebar.php page and changing the if is home code to one of my categories doesnt work

So what i would like is to be able to edit my single.php page so on the pages that display my content i can display certain things for that category.

So like if i have a bikes category and a pizza category i can add a special advertising code to both for their own advertisments



if category bikes
this will be my bikes ads

if category pizza
this will be my pizza ads

if category auctions
this will be my auction ads



THANKS FOR YOUR HELP . . .

 

That should be simple, you need to have is_category('<id>') and put this inside if else

 

Thanks I will try adding that code in THANKS AGAIN !