Forumlar / Cotonti / Support / Div Odd Even

Is it possible to add more odd even type codes, as one is not enough for me and i would like to create a few more in the page section but i don't have the knowledge to do it myself

This is what i mean.

normal odd/even:

---

below would be in a .tpl file

div class="{\FORUMS_POSTS_ROW_ODDEVEN\}"

below is in a .css file

.odd {background-color:red;}
.even {background-color:blue;}

custom div1/div2:

---

below would be in a .tpl file

div class="{\FORUMS_POSTS_ROW_ODDEVEN\}"

below is in a .css file

.div1 {background-color:orange;}
.div2 {background-color:yellow;}

basicaly like the odd and even but another lot of my own

is this located in the function.php file ?

thank you, hopefully wont be to hard to add something like the odd/even tag, *crosses fingers*

Edit: i can seem to find the part