Removing - & + amounts from display when price is offset?

Ok, weird title, but this is a very specific question.
Ok, when you add an Attribute to an item, and that option make the item a different price, you either + more money or - less money to the item. HOWEVER, that price difference shows up in the drop down menu, which is what I don't want.
You can see on item http://fitgirlwear.com/zencart/index.php?main_page=product_info&cPath=1&products_id=13
If you click on the drop down, next to some of the items are -2.20 or -6.60. I DO NOT want it to show the customer the -6.60.
I want it to subtract that amount, but I do not want that to show in the drop down, So my question is, is there any way to stop Zen from displaying that number next to the Attribute, or am I stuck with it?

Thanks to anyone who knows this answer.

You can stop the attribute weight display for example.... But not the $$ to my knowledge.

Just a note... you should start with the lowest priced attribute combination so they are all plus... This is good marketing and helps to avoid customer confusion.

~Melanie