Changes to Salemaker CRE Loaded

Changes to Salemaker for CRE Loaded. I need the option to hide the sale price until a customer adds the item to the shopping cart or clicks on a link to 'see sale price in cart' On the page where the items are listed with thumbnails, the price should be displayed with a line through it. When the user clicks on the thumbnail and the product page is displayed, there should be a link that will popup the sale price. I would like the sale price to be reflected once the item is added to the cart. I would like this option to be optional when I set up a sale. Most of my sales will work as it does today. I need this for 1 of my product lines only right now. If I can turn this off and on when I set up a sale, that would be great.